From 58756618ee0867ae3d763d78e4402a22bab378c1 Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 14:55:57 -0500
Subject: [PATCH 1/9] Integrate Butterchurn visualizer and UI controls

Replace the old WebGL visualizer with a Butterchurn (Milkdrop) based engine and add visualizer UI/controls. Adds a butterchurn visualizer singleton (utils/visualizer/butterchurnVisualizer.ts), TypeScript typings for butterchurn presets, new presets list, WebGL2 capability check, and hotkeys for nav/randomize. Introduces a new options popup (auto-advance / auto-hide now playing), track-corner UI behavior tied to mouse activity, and CSS updates for the control chrome. Updates Redux slice/selectors to persist auto-cycle and auto-hide settings, wires analytics/open/close flows, and adjusts binding logic to use the audio player's AudioContext. Removes legacy GL visualizer files and switches package deps to butterchurn + presets in the web package.
---
 package-lock.json                             |    30 +-
 packages/web/package.json                     |    18 +-
 .../web/src/pages/visualizer/Visualizer.tsx   |    48 +-
 .../visualizer/VisualizerProvider.module.css  |   191 +-
 .../pages/visualizer/VisualizerProvider.tsx   |   440 +-
 .../src/pages/visualizer/store/selectors.ts   |     6 +
 .../web/src/pages/visualizer/store/slice.ts   |    21 +-
 packages/web/src/pages/visualizer/utils.ts    |     9 +
 .../src/types/butterchurn-preset-packs.d.ts   |    29 +
 .../src/utils/visualizer/GLAudioAnalyser.js   |    57 -
 .../utils/visualizer/butterchurnVisualizer.ts |   313 +
 .../web/src/utils/visualizer/gl-line-3d.js    |   154 -
 .../gl-vignette-background/.npmignore         |     6 -
 .../gl-vignette-background/LICENSE.md         |    21 -
 .../gl-vignette-background/README.md          |   106 -
 .../gl-vignette-background/create-shader.js   |    30 -
 .../gl-vignette-background/demo/index.js      |    37 -
 .../gl-vignette-background/frag.glsl          |    49 -
 .../gl-vignette-background/index.js           |    79 -
 .../node_modules/.bin/esparse                 |     1 -
 .../node_modules/.bin/esvalidate              |     1 -
 .../node_modules/.bin/glslify                 |     1 -
 .../node_modules/esprima/ChangeLog            |    77 -
 .../node_modules/esprima/LICENSE.BSD          |    19 -
 .../node_modules/esprima/README.md            |    24 -
 .../node_modules/esprima/bin/esparse.js       |   127 -
 .../node_modules/esprima/bin/esvalidate.js    |   199 -
 .../node_modules/esprima/esprima.js           |  3772 ---
 .../node_modules/esprima/package.json         |   107 -
 .../node_modules/esprima/test/compat.js       |   241 -
 .../node_modules/esprima/test/reflect.js      |   422 -
 .../node_modules/esprima/test/run.js          |    67 -
 .../node_modules/esprima/test/runner.js       |   495 -
 .../node_modules/esprima/test/test.js         | 25593 ----------------
 .../node_modules/glslify/.npmignore           |     2 -
 .../node_modules/glslify/LICENSE              |    21 -
 .../node_modules/glslify/README.md            |   212 -
 .../node_modules/glslify/adapter.js           |     9 -
 .../node_modules/glslify/bin/glslify          |     2 -
 .../node_modules/glslify/browser.js           |     8 -
 .../node_modules/glslify/cli.js               |    68 -
 .../node_modules/glslify/example.js           |     5 -
 .../node_modules/glslify/index.js             |   192 -
 .../node_modules/glslify/package.json         |    82 -
 .../node_modules/glslify/simple-adapter.js    |    10 -
 .../node_modules/resolve/.travis.yml          |     4 -
 .../node_modules/resolve/LICENSE              |    18 -
 .../node_modules/resolve/example/async.js     |     5 -
 .../node_modules/resolve/example/sync.js      |     3 -
 .../node_modules/resolve/index.js             |     5 -
 .../node_modules/resolve/lib/async.js         |   127 -
 .../node_modules/resolve/lib/caller.js        |     8 -
 .../node_modules/resolve/lib/core.js          |     4 -
 .../node_modules/resolve/lib/core.json        |    38 -
 .../resolve/lib/node-modules-paths.js         |    28 -
 .../node_modules/resolve/lib/sync.js          |    80 -
 .../node_modules/resolve/package.json         |    57 -
 .../node_modules/resolve/readme.markdown      |   144 -
 .../node_modules/resolve/test/core.js         |    12 -
 .../resolve/test/faulty_basedir.js            |    14 -
 .../node_modules/resolve/test/filter.js       |    18 -
 .../node_modules/resolve/test/filter_sync.js  |    15 -
 .../node_modules/resolve/test/mock.js         |   142 -
 .../node_modules/resolve/test/mock_sync.js    |    68 -
 .../node_modules/resolve/test/node_path.js    |    36 -
 .../resolve/test/node_path/x/aaa/index.js     |     1 -
 .../resolve/test/node_path/x/ccc/index.js     |     1 -
 .../resolve/test/node_path/y/bbb/index.js     |     1 -
 .../resolve/test/node_path/y/ccc/index.js     |     1 -
 .../node_modules/resolve/test/resolver.js     |   281 -
 .../resolver/bar/node_modules/foo/index.js    |     1 -
 .../resolve/test/resolver/baz/doom.js         |     0
 .../resolve/test/resolver/baz/package.json    |     3 -
 .../resolve/test/resolver/baz/quux.js         |     1 -
 .../biz/node_modules/garply/lib/index.js      |     1 -
 .../biz/node_modules/garply/package.json      |     3 -
 .../resolver/biz/node_modules/grux/index.js   |     1 -
 .../resolver/biz/node_modules/tiv/index.js    |     1 -
 .../resolve/test/resolver/cup.coffee          |     1 -
 .../node_modules/resolve/test/resolver/foo.js |     1 -
 .../test/resolver/incorrect_main/index.js     |     2 -
 .../test/resolver/incorrect_main/package.json |     3 -
 .../resolve/test/resolver/mug.coffee          |     0
 .../node_modules/resolve/test/resolver/mug.js |     0
 .../test/resolver/other_path/lib/other-lib.js |     0
 .../resolve/test/resolver/other_path/root.js  |     0
 .../punycode/node_modules/punycode/index.js   |     0
 .../resolve/test/resolver/quux/foo/index.js   |     1 -
 .../test/resolver/without_basedir/main.js     |     6 -
 .../without_basedir/node_modules/mymodule.js  |     1 -
 .../resolve/test/resolver_sync.js             |   180 -
 .../gl-vignette-background/package.json       |   109 -
 .../gl-vignette-background/vert.glsl          |    12 -
 packages/web/src/utils/visualizer/presets.ts  |    85 +
 .../visualizer/shaders/visualizer-1.frag      |    43 -
 .../visualizer/shaders/visualizer-1.vert      |   122 -
 .../web/src/utils/visualizer/visualizer-1.js  |   218 -
 packages/web/vite.config.ts                   |     5 +
 98 files changed, 1075 insertions(+), 34237 deletions(-)
 create mode 100644 packages/web/src/types/butterchurn-preset-packs.d.ts
 delete mode 100644 packages/web/src/utils/visualizer/GLAudioAnalyser.js
 create mode 100644 packages/web/src/utils/visualizer/butterchurnVisualizer.ts
 delete mode 100644 packages/web/src/utils/visualizer/gl-line-3d.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/.npmignore
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/LICENSE.md
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/README.md
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/create-shader.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/demo/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/frag.glsl
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/index.js
 delete mode 120000 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/esparse
 delete mode 120000 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/esvalidate
 delete mode 120000 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/glslify
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/ChangeLog
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/LICENSE.BSD
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/README.md
 delete mode 100755 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/bin/esparse.js
 delete mode 100755 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/bin/esvalidate.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/esprima.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/package.json
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/compat.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/reflect.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/run.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/runner.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/test.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/.npmignore
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/LICENSE
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/README.md
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/adapter.js
 delete mode 100755 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/bin/glslify
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/browser.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/cli.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/example.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/package.json
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/simple-adapter.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/.travis.yml
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/LICENSE
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/example/async.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/example/sync.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/async.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/caller.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/core.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/core.json
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/node-modules-paths.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/sync.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/package.json
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/readme.markdown
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/core.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/faulty_basedir.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/filter.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/filter_sync.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/mock.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/mock_sync.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/x/aaa/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/x/ccc/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/y/bbb/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/y/ccc/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/bar/node_modules/foo/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/doom.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/package.json
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/quux.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/garply/lib/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/garply/package.json
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/grux/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/tiv/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/cup.coffee
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/foo.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/incorrect_main/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/incorrect_main/package.json
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/mug.coffee
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/mug.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/other_path/lib/other-lib.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/other_path/root.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/punycode/node_modules/punycode/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/quux/foo/index.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/without_basedir/main.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/without_basedir/node_modules/mymodule.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver_sync.js
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/package.json
 delete mode 100644 packages/web/src/utils/visualizer/gl-vignette-background/vert.glsl
 create mode 100644 packages/web/src/utils/visualizer/presets.ts
 delete mode 100644 packages/web/src/utils/visualizer/shaders/visualizer-1.frag
 delete mode 100644 packages/web/src/utils/visualizer/shaders/visualizer-1.vert
 delete mode 100644 packages/web/src/utils/visualizer/visualizer-1.js

diff --git a/package-lock.json b/package-lock.json
index b48c1f5e1d9..35a72529151 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5928,7 +5928,6 @@
     },
     "node_modules/@clack/prompts/node_modules/is-unicode-supported": {
       "version": "1.3.0",
-      "extraneous": true,
       "inBundle": true,
       "license": "MIT",
       "engines": {
@@ -54799,6 +54798,27 @@
       "version": "0.10.31",
       "license": "MIT"
     },
+    "node_modules/butterchurn": {
+      "version": "2.6.7",
+      "resolved": "https://registry.npmjs.org/butterchurn/-/butterchurn-2.6.7.tgz",
+      "integrity": "sha512-BJiRA8L0L2+84uoG2SSfkp0kclBuN+vQKf217pK7pMlwEO2ZEg3MtO2/o+l8Qpr8Nbejg8tmL1ZHD1jmhiaaqg==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.0.0",
+        "ecma-proposal-math-extensions": "0.0.2"
+      }
+    },
+    "node_modules/butterchurn-presets": {
+      "version": "2.4.7",
+      "resolved": "https://registry.npmjs.org/butterchurn-presets/-/butterchurn-presets-2.4.7.tgz",
+      "integrity": "sha512-4MdM8ripz/VfH1BCldrIKdAc/1ryJFBDvqlyow6Ivo1frwj0H3duzvSMFC7/wIjAjxb1QpwVHVqGqS9uAFKhpg==",
+      "license": "MIT",
+      "dependencies": {
+        "babel-runtime": "^6.26.0",
+        "ecma-proposal-math-extensions": "0.0.2",
+        "lodash": "^4.17.4"
+      }
+    },
     "node_modules/bytes": {
       "version": "3.0.0",
       "license": "MIT",
@@ -60579,6 +60599,12 @@
         "url": "https://paulmillr.com/funding/"
       }
     },
+    "node_modules/ecma-proposal-math-extensions": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/ecma-proposal-math-extensions/-/ecma-proposal-math-extensions-0.0.2.tgz",
+      "integrity": "sha512-80BnDp2Fn7RxXlEr5HHZblniY4aQ97MOAicdWWpSo0vkQiISSE9wLR4SqxKsu4gCtXFBIPPzy8JMhay4NWRg/Q==",
+      "license": "MIT"
+    },
     "node_modules/editorconfig": {
       "version": "1.0.4",
       "dev": true,
@@ -155749,6 +155775,8 @@
         "array-range": "1.0.1",
         "body-scroll-lock": "4.0.0-beta.0",
         "bs58": "5.0.0",
+        "butterchurn": "^2.6.7",
+        "butterchurn-presets": "^2.4.7",
         "canvas-loop": "1.0.7",
         "chart.js": "2.9.3",
         "clamp": "1.0.1",
diff --git a/packages/web/package.json b/packages/web/package.json
index 91bcc3e7930..9e44a804db1 100644
--- a/packages/web/package.json
+++ b/packages/web/package.json
@@ -103,10 +103,10 @@
     "@tanstack/react-query-devtools": "5.62.7",
     "@wagmi/connectors": "5.7.11",
     "array-pack-2d": "0.1.1",
-    "array-range": "1.0.1",
     "body-scroll-lock": "4.0.0-beta.0",
     "bs58": "5.0.0",
-    "canvas-loop": "1.0.7",
+    "butterchurn": "^2.6.7",
+    "butterchurn-presets": "^2.4.7",
     "chart.js": "2.9.3",
     "clamp": "1.0.1",
     "classnames": "2.2.6",
@@ -116,23 +116,12 @@
     "electron-updater": "6.3.9",
     "exif-parser": "0.1.12",
     "formik": "2.4.6",
-    "gl-audio-analyser": "1.0.3",
-    "gl-buffer": "2.1.2",
-    "gl-mat4": "1.2.0",
-    "gl-quad": "1.1.3",
-    "gl-shader": "4.2.1",
-    "gl-shader-core": "2.2.0",
-    "gl-vao": "1.3.0",
-    "glsl-noise": "0.0.0",
-    "glsl-random": "0.0.4",
-    "hex-rgb": "1.0.0",
     "history": "4.10.1",
     "inherits": "2.0.4",
     "jimp": "0.6.8",
     "js-sha3": "0.8.0",
     "js-yaml": "3.13.1",
     "jsmediatags": "3.8.1",
-    "lerp": "1.0.3",
     "linkify-react": "4.1.0",
     "linkifyjs": "4.1.0",
     "localforage": "1.10.0",
@@ -140,9 +129,7 @@
     "lottie-react": "2.4.0",
     "markdown-to-jsx": "7.4.3",
     "numeral": "2.0.6",
-    "orbit-controls": "0.0.1",
     "persona": "5.5.0",
-    "perspective-camera": "2.0.1",
     "prop-types": "15.7.2",
     "query-string": "6.13.5",
     "react": "19.0.0",
@@ -184,7 +171,6 @@
     "vike": "0.4.247",
     "vike-react": "^0.3.7",
     "wagmi": "2.14.15",
-    "webgl-context": "2.2.0",
     "zod-formik-adapter": "1.2.0"
   },
   "main": "src/electron.js",
diff --git a/packages/web/src/pages/visualizer/Visualizer.tsx b/packages/web/src/pages/visualizer/Visualizer.tsx
index a80a39e2431..61a4e89cc79 100644
--- a/packages/web/src/pages/visualizer/Visualizer.tsx
+++ b/packages/web/src/pages/visualizer/Visualizer.tsx
@@ -1,4 +1,11 @@
-import { Suspense, useEffect, useState, useCallback, lazy } from 'react'
+import {
+  Suspense,
+  useEffect,
+  useState,
+  useCallback,
+  useMemo,
+  lazy
+} from 'react'
 import { connect } from 'react-redux'
 import { Dispatch } from 'redux'
 
@@ -10,6 +17,7 @@ import styles from './Visualizer.module.css'
 import { useLocation } from 'react-router'
 import { useHotkeys } from '@audius/harmony'
 import { route } from '@audius/common/utils'
+import ButterchurnVisualizer from 'utils/visualizer/butterchurnVisualizer'
 
 const { UPLOAD_PAGE, UPLOAD_ALBUM_PAGE, UPLOAD_PLAYLIST_PAGE } = route
 export const NO_VISUALIZER_ROUTES = new Set([
@@ -46,13 +54,41 @@ const Visualizer = ({
   }, [toggleVisibility, pathname])
 
   const onCloseVisualizer = useCallback(() => {
+    if (!isVisible) return
     closeVisualizer()
-  }, [closeVisualizer, pathname])
+  }, [closeVisualizer, isVisible])
 
-  useHotkeys({
-    27 /* ESC */: onCloseVisualizer,
-    86 /* v */: onToggleVisibility
-  })
+  const onHistoryForward = useCallback(() => {
+    if (isVisible) ButterchurnVisualizer?.historyForwardOrNext()
+  }, [isVisible])
+
+  const onHistoryBack = useCallback(() => {
+    if (isVisible) ButterchurnVisualizer?.historyBack()
+  }, [isVisible])
+
+  const onRandomPreset = useCallback(() => {
+    if (isVisible) ButterchurnVisualizer?.randomPreset()
+  }, [isVisible])
+
+  const hotkeyMap = useMemo(
+    () => ({
+      27 /* ESC */: onCloseVisualizer,
+      86 /* v */: onToggleVisibility,
+      // Space (32) intentionally omitted — conflicts with global play/pause hotkey
+      39 /* Right Arrow */: onHistoryForward,
+      37 /* Left Arrow */: onHistoryBack,
+      82 /* r */: onRandomPreset
+    }),
+    [
+      onCloseVisualizer,
+      onToggleVisibility,
+      onHistoryForward,
+      onHistoryBack,
+      onRandomPreset
+    ]
+  )
+
+  useHotkeys(hotkeyMap)
 
   return isLoaded ? (
     <Suspense fallback={<div className={styles.fallback} />}>
diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.module.css b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
index 669b029f00a..89d34e114f0 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.module.css
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
@@ -1,5 +1,9 @@
 .visualizer {
-  /* Add z-index so it shows search bar and profile page elements. */
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100vw;
+  height: 100vh;
   z-index: 15;
   display: none;
   opacity: 0;
@@ -12,27 +16,111 @@
   display: block;
 }
 
-.closeButtonIcon {
+.topControlsWrap {
   position: absolute;
-  top: 25px;
-  left: 25px;
-  width: 24px;
-  height: 24px;
+  top: 22px;
+  left: 22px;
+  z-index: 1;
+  opacity: 0;
+  transition: opacity 0.25s ease;
+  pointer-events: none;
+  display: flex;
+  align-items: center;
+  background: rgba(255, 255, 255, 0.12);
+  backdrop-filter: blur(20px) saturate(160%);
+  -webkit-backdrop-filter: blur(20px) saturate(160%);
+  border: 1px solid rgba(255, 255, 255, 0.22);
+  border-radius: 999px;
+  box-shadow:
+    0 2px 16px rgba(0, 0, 0, 0.18),
+    inset 0 1px 0 rgba(255, 255, 255, 0.18);
+  padding: 4px;
+}
+
+.topControlsWrapVisible {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.pillButton {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 32px;
+  height: 32px;
+  border-radius: 50%;
+  background: transparent;
+  border: none;
   cursor: pointer;
+  color: rgba(255, 255, 255, 0.9);
+  transition: background 0.15s ease;
+  padding: 0;
+}
+.pillButton:hover {
+  background: rgba(255, 255, 255, 0.15);
+}
+.pillButton:active {
+  background: rgba(255, 255, 255, 0.25);
 }
 
-.closeButtonIcon:hover {
-  transform: scale(1.1);
+.pillIcon {
+  width: 20px;
+  height: 20px;
+  fill: currentColor;
+}
+
+.pillDivider {
+  width: 1px;
+  height: 16px;
+  background: rgba(255, 255, 255, 0.2);
+  margin: 0 4px;
+}
+
+.optionsPopup {
+  margin-top: 12px;
+  background: rgba(18, 18, 22, 0.45) !important;
+  backdrop-filter: blur(24px) saturate(180%) !important;
+  -webkit-backdrop-filter: blur(24px) saturate(180%) !important;
+  border: 1px solid rgba(255, 255, 255, 0.14) !important;
+  box-shadow:
+    0 12px 40px rgba(0, 0, 0, 0.35),
+    inset 0 1px 0 rgba(255, 255, 255, 0.08) !important;
+  border-radius: 16px !important;
+}
+
+.optionsPanel {
+  padding: 16px 16px 18px;
+  width: 260px;
 }
 
 .logoWrapper {
   position: absolute;
-  top: 9px; /* Want logo to be 25px from top, it has existing top-margin of 16px */
+  top: 25px;
   left: 0;
   width: 100%;
   display: inline-flex;
   align-items: center;
   justify-content: center;
+  pointer-events: none;
+}
+
+/* White mark + exclusion — visible against vivid Milkdrop output */
+.logoMark {
+  mix-blend-mode: exclusion;
+}
+
+.trackCornerCluster {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  opacity: 0;
+  transition: opacity 0.25s ease;
+  pointer-events: none;
+}
+
+.trackCornerClusterVisible {
+  opacity: 1;
+  pointer-events: auto;
 }
 
 .infoOverlayTileShadow {
@@ -105,3 +193,88 @@
   padding: 0px;
   max-width: calc(100% - 128px) !important;
 }
+
+
+.panelHeader {
+  margin-bottom: 2px;
+}
+
+.panelTitle {
+  letter-spacing: -0.02em;
+}
+
+/* Horizontal “segmented” transport: prev | next */
+.optionsNavRail {
+  display: flex;
+  flex-direction: row;
+  align-items: stretch;
+  border-radius: 14px;
+  padding: 4px;
+  background: rgba(0, 0, 0, 0.22);
+  border: 1px solid rgba(255, 255, 255, 0.08);
+  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2);
+}
+
+.optionsNavCell {
+  flex: 1;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 38px;
+  background: transparent;
+  border: none;
+  cursor: pointer;
+  color: rgba(255, 255, 255, 0.9);
+  transition: background 0.15s ease;
+  border-radius: 10px;
+  padding: 0;
+}
+
+.optionsNavCell:hover:not(:disabled) {
+  background: rgba(255, 255, 255, 0.12);
+}
+
+.optionsNavCell:active:not(:disabled) {
+  background: rgba(255, 255, 255, 0.2);
+}
+
+.optionsNavCell:disabled {
+  opacity: 0.3;
+  cursor: not-allowed;
+}
+
+.navIcon {
+  width: 24px;
+  height: 24px;
+  fill: currentColor;
+}
+
+.optionsNavDivider {
+  width: 1px;
+  align-self: stretch;
+  margin: 6px 0;
+  background: rgba(255, 255, 255, 0.12);
+  flex-shrink: 0;
+}
+
+.autoAdvanceBlock {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 16px;
+  padding-top: 14px;
+  margin-top: 2px;
+  border-top: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.autoAdvanceHint {
+  opacity: 0.68;
+  line-height: 1.35;
+  max-width: 200px;
+}
+
+.autoSwitch {
+  flex-shrink: 0;
+  transform: scale(0.94);
+  opacity: 0.95;
+}
diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.tsx b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
index ac6ccd87e92..e4f1b5a4316 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.tsx
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
@@ -1,44 +1,70 @@
 import {
   queueSelectors,
-  themeSelectors,
   playerSelectors
 } from '@audius/common/store'
 import { Nullable, route } from '@audius/common/utils'
 import { Name, SquareSizes, Track } from '@audius/common/models'
-import { useEffect, useState, useCallback } from 'react'
+import {
+  useEffect,
+  useState,
+  useCallback,
+  useRef,
+  type ReactNode
+} from 'react'
 import { push } from 'utils/navigation'
 import { AppState } from 'store/types'
 import { Dispatch } from 'redux'
 import { connect } from 'react-redux'
 import cn from 'classnames'
 
-import Visualizer1 from 'utils/visualizer/visualizer-1.js'
+import ButterchurnVisualizer from 'utils/visualizer/butterchurnVisualizer'
 import Toast from 'components/toast/Toast'
 
 import styles from './VisualizerProvider.module.css'
 
-import { shouldShowDark } from 'utils/theme/theme'
 import { make, TrackEvent } from 'common/store/analytics/actions'
 import DynamicImage from 'components/dynamic-image/DynamicImage'
 import PlayingTrackInfo from 'components/play-bar/desktop/components/PlayingTrackInfo'
-import { webglSupported } from './utils'
+import { webgl2Supported } from './utils'
 import {
-  IconAudiusLogoHorizontal,
-  useTheme,
-  IconClose as IconRemove
+  IconAudiusLogoHorizontalNew,
+  IconClose as IconRemove,
+  IconCaretLeft,
+  IconCaretRight,
+  IconKebabHorizontal,
+  Flex,
+  Switch,
+  Text,
+  Popup
 } from '@audius/harmony'
-import {
-  useTrackCoverArt,
-  useTrackCoverArtDominantColors
-} from 'hooks/useTrackCoverArt'
+import { useTrackCoverArt } from 'hooks/useTrackCoverArt'
 import { audioPlayer } from 'services/audio-player'
 import { useCurrentTrack } from '@audius/common/hooks'
 import { useUser } from '@audius/common/api'
+import { toggleAutoCycle, toggleAutoHideTrackDetails } from './store/slice'
+import {
+  getIsVisible,
+  getIsAutoCycling,
+  getAutoHideTrackDetails
+} from './store/selectors'
 
 const { profilePage } = route
 const { makeGetCurrent } = queueSelectors
 const { getPlaying } = playerSelectors
-const { getTheme } = themeSelectors
+
+const messages = {
+  browserUnsupported: (browser: string) =>
+    `Heads Up! Visualizer is not fully supported in ${browser} 😢 Please switch to a different browser like Chrome to view!`,
+  optionsTriggerLabel: 'Open visualizer options',
+  optionsHeading: 'Visualizer Options',
+  previous: 'Previous visualizer',
+  next: 'Next visualizer',
+  autoAdvance: 'Auto-advance',
+  autoAdvanceHint: 'New visualizer every 45s',
+  autoHideTrackDetails: 'Auto-hide Now Playing',
+  autoHideTrackDetailsHint: 'Fades when mouse is idle',
+  closeVisualizer: 'Close visualizer'
+}
 
 const Artwork = ({ track }: { track?: Track | null }) => {
   const { track_id } = track || {}
@@ -49,41 +75,266 @@ const Artwork = ({ track }: { track?: Track | null }) => {
   return <DynamicImage wrapperClassName={styles.artwork} image={image} />
 }
 
+const VisualizerAutoCycleSync = connect((state: AppState) => ({
+  isVisible: getIsVisible(state),
+  isAutoCycling: getIsAutoCycling(state)
+}))(function VisualizerAutoCycleSyncInner({
+  isVisible,
+  isAutoCycling
+}: {
+  isVisible: boolean
+  isAutoCycling: boolean
+}) {
+  useEffect(() => {
+    if (isVisible && isAutoCycling) {
+      ButterchurnVisualizer?.startAutoCycle()
+    } else {
+      ButterchurnVisualizer?.stopAutoCycle()
+    }
+  }, [isVisible, isAutoCycling])
+  return null
+})
+
+const VisualizerOptionsForm = connect(
+  (state: AppState) => ({
+    isAutoCycling: getIsAutoCycling(state),
+    autoHideTrackDetails: getAutoHideTrackDetails(state)
+  }),
+  { toggleAutoCycle, toggleAutoHideTrackDetails }
+)(function VisualizerOptionsFormInner({
+  isAutoCycling,
+  autoHideTrackDetails,
+  toggleAutoCycle: onToggleAutoCycle,
+  toggleAutoHideTrackDetails: onToggleAutoHideTrackDetails,
+  canBack
+}: {
+  isAutoCycling: boolean
+  autoHideTrackDetails: boolean
+  toggleAutoCycle: () => void
+  toggleAutoHideTrackDetails: () => void
+  canBack: boolean
+}) {
+  return (
+    <Flex column gap='m' className={styles.optionsPanel}>
+      <Flex
+        alignItems='center'
+        justifyContent='space-between'
+        gap='m'
+        className={styles.panelHeader}
+      >
+        <Text
+          variant='title'
+          size='s'
+          strength='strong'
+          color='staticWhite'
+          className={styles.panelTitle}
+        >
+          {messages.optionsHeading}
+        </Text>
+      </Flex>
+      <div
+        className={styles.optionsNavRail}
+        role='group'
+        aria-label={messages.optionsHeading}
+      >
+        <button
+          type='button'
+          className={styles.optionsNavCell}
+          aria-label={messages.previous}
+          disabled={!canBack}
+          onClick={() => ButterchurnVisualizer?.historyBack()}
+        >
+          <IconCaretLeft className={styles.navIcon} aria-hidden />
+        </button>
+        <div className={styles.optionsNavDivider} aria-hidden />
+        <button
+          type='button'
+          className={styles.optionsNavCell}
+          aria-label={messages.next}
+          onClick={() => ButterchurnVisualizer?.historyForwardOrNext()}
+        >
+          <IconCaretRight className={styles.navIcon} aria-hidden />
+        </button>
+      </div>
+      <div className={styles.autoAdvanceBlock}>
+        <Flex column gap='xs'>
+          <Text
+            variant='body'
+            size='s'
+            strength='strong'
+            color='staticWhite'
+          >
+            {messages.autoAdvance}
+          </Text>
+          <Text
+            variant='body'
+            size='xs'
+            strength='default'
+            color='staticWhite'
+            className={styles.autoAdvanceHint}
+          >
+            {messages.autoAdvanceHint}
+          </Text>
+        </Flex>
+        <div className={styles.autoSwitch}>
+          <Switch
+            checked={isAutoCycling}
+            onChange={() => {
+              onToggleAutoCycle()
+            }}
+            aria-label={messages.autoAdvance}
+          />
+        </div>
+      </div>
+      <div className={styles.autoAdvanceBlock}>
+        <Flex column gap='xs'>
+          <Text
+            variant='body'
+            size='s'
+            strength='strong'
+            color='staticWhite'
+          >
+            {messages.autoHideTrackDetails}
+          </Text>
+          <Text
+            variant='body'
+            size='xs'
+            strength='default'
+            color='staticWhite'
+            className={styles.autoAdvanceHint}
+          >
+            {messages.autoHideTrackDetailsHint}
+          </Text>
+        </Flex>
+        <div className={styles.autoSwitch}>
+          <Switch
+            checked={autoHideTrackDetails}
+            onChange={() => {
+              onToggleAutoHideTrackDetails()
+            }}
+            aria-label={messages.autoHideTrackDetails}
+          />
+        </div>
+      </div>
+    </Flex>
+  )
+})
+
+const VisualizerTrackCorner = connect(
+  (state: AppState) => ({
+    autoHideTrackDetails: getAutoHideTrackDetails(state)
+  })
+)(function VisualizerTrackCornerInner({
+  showControls,
+  autoHideTrackDetails,
+  children
+}: {
+  showControls: boolean
+  autoHideTrackDetails: boolean
+  children: ReactNode
+}) {
+  const trackDetailsVisible = !autoHideTrackDetails ? true : showControls
+  return (
+    <div
+      className={cn(styles.trackCornerCluster, {
+        [styles.trackCornerClusterVisible]: trackDetailsVisible
+      })}
+    >
+      {children}
+    </div>
+  )
+})
+
 type VisualizerProps = {
   isVisible: boolean
   onClose: () => void
 } & ReturnType<typeof mapDispatchToProps> &
   ReturnType<ReturnType<typeof makeMapStateToProps>>
 
-const webGLExists = webglSupported()
-const messages = (browser: string) => ({
-  notSupported: `Heads Up! Visualizer is not fully supported in ${browser} 😢 Please switch to a different browser like Chrome to view!`
-})
+const webGL2Exists = webgl2Supported()
 
 const Visualizer = ({
   isVisible,
   currentQueueItem,
   playing,
-  theme,
   onClose,
   recordOpen,
   recordClose,
   goToRoute
 }: VisualizerProps) => {
   const [toastText, setToastText] = useState('')
-  const { spacing } = useTheme()
-  // Used to fadeIn/Out the visualizer (opacity 0 -> 1) through a css class
   const [fadeVisualizer, setFadeVisualizer] = useState<Nullable<Boolean>>(null)
-  // Used to show/hide the visualizer (display: block/none) through a css class
   const [showVisualizer, setShowVisualizer] = useState(false)
+  const [showControls, setShowControls] = useState(false)
+  const [optionsOpen, setOptionsOpen] = useState(false)
+  const [, setHistoryTick] = useState(0)
+  const controlsTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+
+  const optionsAnchorRef = useRef<HTMLButtonElement>(null)
+
+  const optionsOpenRef = useRef(optionsOpen)
+  useEffect(() => {
+    optionsOpenRef.current = optionsOpen
+  }, [optionsOpen])
+
+  const handleMouseMove = useCallback(() => {
+    setShowControls(true)
+    if (controlsTimerRef.current) clearTimeout(controlsTimerRef.current)
+    controlsTimerRef.current = setTimeout(() => {
+      if (!optionsOpenRef.current) {
+        setShowControls(false)
+      }
+    }, 3000)
+  }, [])
+
+  useEffect(() => {
+    if (!isVisible || !showVisualizer) return
+    const onMove = () => handleMouseMove()
+    window.addEventListener('mousemove', onMove, { passive: true })
+    return () => window.removeEventListener('mousemove', onMove)
+  }, [isVisible, showVisualizer, handleMouseMove])
+
+  useEffect(() => {
+    if (!isVisible || !showVisualizer) return
+    handleMouseMove()
+  }, [isVisible, showVisualizer, handleMouseMove])
+
+  useEffect(() => {
+    if (!optionsOpen && showControls) {
+      handleMouseMove()
+    }
+  }, [optionsOpen, showControls, handleMouseMove])
+
+  useEffect(() => {
+    if (!showControls) {
+      setOptionsOpen(false)
+    }
+  }, [showControls])
+
+  useEffect(() => {
+    ButterchurnVisualizer?.setOnHistoryChange?.(() =>
+      setHistoryTick((t) => t + 1)
+    )
+    return () => ButterchurnVisualizer?.setOnHistoryChange?.(null)
+  }, [])
+
+  useEffect(() => {
+    return () => {
+      if (controlsTimerRef.current) clearTimeout(controlsTimerRef.current)
+    }
+  }, [])
+
+  const canBack = ButterchurnVisualizer?.canHistoryBack() ?? false
 
   const currentTrack = useCurrentTrack()
   const { data: user } = useUser(currentTrack?.owner_id)
 
   useEffect(() => {
     if (showVisualizer) {
-      let browser
-      if (/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {
+      let browser: string | undefined
+      if (!webGL2Exists) {
+        browser = 'your browser'
+      } else if (/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {
         browser = 'Safari'
       } else if (/MSIE/i.test(navigator.userAgent)) {
         browser = 'Internet Explorer'
@@ -91,62 +342,45 @@ const Visualizer = ({
         browser = 'your browser'
       }
       if (browser) {
-        setToastText(messages(browser).notSupported)
+        setToastText(messages.browserUnsupported(browser))
       }
     }
   }, [showVisualizer])
 
-  // Update Colors
-  const dominantColors = useTrackCoverArtDominantColors({
-    trackId: currentTrack?.track_id
-  })
   useEffect(() => {
-    if (dominantColors !== null) {
-      Visualizer1?.setDominantColors(dominantColors)
-    }
-  }, [isVisible, dominantColors, playing])
+    if (!audioPlayer || !playing) return
+    const player = audioPlayer
 
-  // Rebind audio
-  useEffect(() => {
-    if (!audioPlayer) {
-      return
-    }
-    if (playing) {
-      if (audioPlayer.audioCtx) {
-        Visualizer1?.bind(audioPlayer)
-      } else {
-        audioPlayer.audio.addEventListener('canplay', () => {
-          Visualizer1?.bind(audioPlayer)
-        })
-      }
+    if (player.audioCtx) {
+      ButterchurnVisualizer?.bind(player)
+    } else {
+      const onCanPlay = () => ButterchurnVisualizer?.bind(player)
+      player.audio.addEventListener('canplay', onCanPlay)
+      return () => player.audio.removeEventListener('canplay', onCanPlay)
     }
   }, [isVisible, playing])
 
   useEffect(() => {
     if (isVisible) {
-      const darkMode = shouldShowDark(theme)
-      Visualizer1?.show(darkMode)
+      ButterchurnVisualizer?.show()
       recordOpen()
       setShowVisualizer(true)
-      // Fade in after a 50ms delay because setting showVisualizer() and fadeVisualizer() at the
-      // same time leads to a race condition resulting in the animation not fading in sometimes
       setTimeout(() => {
         setFadeVisualizer(true)
       }, 50)
     } else {
       setFadeVisualizer(false)
     }
-  }, [isVisible, theme])
+  }, [isVisible])
 
-  // On Closing of visualizer -> fadeOut
-  // Wait some time before removing the wrapper DOM element to allow time for fading out animation.
   useEffect(() => {
     if (fadeVisualizer === false) {
-      setTimeout(() => {
+      const timer = setTimeout(() => {
         setShowVisualizer(false)
-        Visualizer1?.hide()
+        ButterchurnVisualizer?.hide()
         recordClose()
       }, 400)
+      return () => clearTimeout(timer)
     }
   }, [fadeVisualizer])
 
@@ -164,6 +398,7 @@ const Visualizer = ({
 
   const renderTrackInfo = () => {
     const { uid } = currentQueueItem
+    const dominantColors = null
     const dominantColor = dominantColors
       ? dominantColors[0]
       : { r: 0, g: 0, b: 0 }
@@ -203,41 +438,77 @@ const Visualizer = ({
         [styles.fade]: fadeVisualizer,
         [styles.show]: showVisualizer
       })}
+      onMouseMove={handleMouseMove}
     >
+      <VisualizerAutoCycleSync />
       <div className='visualizer' />
       <div className={styles.logoWrapper}>
-        <IconAudiusLogoHorizontal
-          width='auto'
-          sizeH='l'
-          color='default'
-          css={{
-            display: 'block',
-            marginTop: spacing.l,
-            marginBottom: spacing.l,
-            opacity: 0.4
-          }}
-        />
+        <div className={styles.logoMark}>
+          <IconAudiusLogoHorizontalNew
+            width={140}
+            sizeH='l'
+            css={{
+              display: 'block',
+              color: '#ffffff',
+              fill: '#ffffff'
+            }}
+          />
+        </div>
       </div>
-      <IconRemove
-        color='white'
-        className={styles.closeButtonIcon}
-        onClick={onClose}
-      />
-      <div className={styles.infoOverlayTileShadow}></div>
-      <div className={styles.infoOverlayTile}>
-        <div
-          className={cn(styles.artworkWrapper, {
-            [styles.playing]: currentTrack
-          })}
-          onClick={() => {
-            goToTrackPage()
-            onClose()
-          }}
+      <div
+        className={cn(styles.topControlsWrap, {
+          [styles.topControlsWrapVisible]: showControls
+        })}
+      >
+        <button
+          type='button'
+          className={styles.pillButton}
+          onClick={onClose}
+          aria-label={messages.closeVisualizer}
         >
-          <Artwork track={currentTrack} />
-        </div>
-        {renderTrackInfo()}
+          <IconRemove className={styles.pillIcon} aria-hidden />
+        </button>
+        <div className={styles.pillDivider} role='presentation' />
+        <button
+          type='button'
+          ref={optionsAnchorRef}
+          className={styles.pillButton}
+          onClick={() => setOptionsOpen(!optionsOpen)}
+          aria-label={messages.optionsTriggerLabel}
+          aria-expanded={optionsOpen}
+          aria-haspopup='dialog'
+        >
+          <IconKebabHorizontal className={styles.pillIcon} aria-hidden />
+        </button>
       </div>
+      <Popup
+        isVisible={optionsOpen}
+        onClose={() => setOptionsOpen(false)}
+        anchorRef={optionsAnchorRef}
+        anchorOrigin={{ horizontal: 'left', vertical: 'bottom' }}
+        transformOrigin={{ horizontal: 'left', vertical: 'top' }}
+        className={styles.optionsPopup}
+        zIndex={20}
+      >
+        <VisualizerOptionsForm canBack={canBack} />
+      </Popup>
+      <VisualizerTrackCorner showControls={showControls}>
+        <div className={styles.infoOverlayTileShadow}></div>
+        <div className={styles.infoOverlayTile}>
+          <div
+            className={cn(styles.artworkWrapper, {
+              [styles.playing]: currentTrack
+            })}
+            onClick={() => {
+              goToTrackPage()
+              onClose()
+            }}
+          >
+            <Artwork track={currentTrack} />
+          </div>
+          {renderTrackInfo()}
+        </div>
+      </VisualizerTrackCorner>
       <Toast
         open={isVisible && !!toastText}
         text={toastText || ''}
@@ -255,8 +526,7 @@ const makeMapStateToProps = () => {
     const currentQueueItem = getCurrentQueueItem(state)
     return {
       currentQueueItem,
-      playing: getPlaying(state),
-      theme: getTheme(state)
+      playing: getPlaying(state)
     }
   }
   return mapStateToProps
diff --git a/packages/web/src/pages/visualizer/store/selectors.ts b/packages/web/src/pages/visualizer/store/selectors.ts
index 57e2bbfe57d..50e9ecdc9e6 100644
--- a/packages/web/src/pages/visualizer/store/selectors.ts
+++ b/packages/web/src/pages/visualizer/store/selectors.ts
@@ -3,3 +3,9 @@ import { AppState } from 'store/types'
 const getBaseState = (state: AppState) => state.application.ui.visualizer
 
 export const getIsVisible = (state: AppState) => getBaseState(state).isVisible
+
+export const getIsAutoCycling = (state: AppState) =>
+  getBaseState(state).isAutoCycling ?? true
+
+export const getAutoHideTrackDetails = (state: AppState) =>
+  getBaseState(state).autoHideTrackDetails ?? true
diff --git a/packages/web/src/pages/visualizer/store/slice.ts b/packages/web/src/pages/visualizer/store/slice.ts
index 4da52b0d8cd..bc290f25698 100644
--- a/packages/web/src/pages/visualizer/store/slice.ts
+++ b/packages/web/src/pages/visualizer/store/slice.ts
@@ -1,6 +1,10 @@
 import { createSlice } from '@reduxjs/toolkit'
 
-const initialState = { isVisible: false }
+const initialState = {
+  isVisible: false,
+  isAutoCycling: true,
+  autoHideTrackDetails: true
+}
 
 const slice = createSlice({
   name: 'application/ui/visualizer',
@@ -14,11 +18,22 @@ const slice = createSlice({
     },
     openVisualizer: (state) => {
       state.isVisible = true
+    },
+    toggleAutoCycle: (state) => {
+      state.isAutoCycling = !state.isAutoCycling
+    },
+    toggleAutoHideTrackDetails: (state) => {
+      state.autoHideTrackDetails = !state.autoHideTrackDetails
     }
   }
 })
 
-export const { toggleVisibility, closeVisualizer, openVisualizer } =
-  slice.actions
+export const {
+  toggleVisibility,
+  closeVisualizer,
+  openVisualizer,
+  toggleAutoCycle,
+  toggleAutoHideTrackDetails
+} = slice.actions
 
 export default slice.reducer
diff --git a/packages/web/src/pages/visualizer/utils.ts b/packages/web/src/pages/visualizer/utils.ts
index 435a7f20479..906da11fb25 100644
--- a/packages/web/src/pages/visualizer/utils.ts
+++ b/packages/web/src/pages/visualizer/utils.ts
@@ -10,3 +10,12 @@ export const webglSupported = () => {
     return false
   }
 }
+
+export const webgl2Supported = () => {
+  try {
+    const canvas = document.createElement('canvas')
+    return !!(window.WebGL2RenderingContext && canvas.getContext('webgl2'))
+  } catch (e) {
+    return false
+  }
+}
diff --git a/packages/web/src/types/butterchurn-preset-packs.d.ts b/packages/web/src/types/butterchurn-preset-packs.d.ts
new file mode 100644
index 00000000000..71358123f42
--- /dev/null
+++ b/packages/web/src/types/butterchurn-preset-packs.d.ts
@@ -0,0 +1,29 @@
+declare module 'butterchurn' {
+  export function createVisualizer(
+    audioContext: AudioContext,
+    canvas: HTMLCanvasElement,
+    opts: { width: number; height: number; pixelRatio: number }
+  ): {
+    render: () => void
+    setRendererSize: (w: number, h: number) => void
+    loadPreset: (preset: object, blendTime: number) => void
+    connectAudio: (node: AudioNode) => void
+  }
+}
+
+/** butterchurn-presets entry + extra CJS packs (no upstream typings). */
+declare module 'butterchurn-presets' {
+  export function getPresets(): Record<string, object>
+}
+
+declare module 'butterchurn-presets/lib/butterchurnPresetsExtra.min.js' {
+  export function getPresets(): Record<string, object>
+}
+
+declare module 'butterchurn-presets/lib/butterchurnPresetsExtra2.min.js' {
+  export function getPresets(): Record<string, object>
+}
+
+declare module 'butterchurn-presets/lib/butterchurnPresetsMD1.min.js' {
+  export function getPresets(): Record<string, object>
+}
diff --git a/packages/web/src/utils/visualizer/GLAudioAnalyser.js b/packages/web/src/utils/visualizer/GLAudioAnalyser.js
deleted file mode 100644
index 83269a49f1f..00000000000
--- a/packages/web/src/utils/visualizer/GLAudioAnalyser.js
+++ /dev/null
@@ -1,57 +0,0 @@
-import Analyser from 'web-audio-analyser'
-import Texture from 'gl-texture2d'
-import ndarray from 'ndarray'
-
-export default class GLAudioAnalyser {
-  constructor (gl, audio, ctx) {
-    this.gl = gl
-    this.audio = audio
-    this.ctx = ctx
-
-    this.waa = Analyser(this.audio, this.ctx, { audible: false })
-
-    var size = (this.waa.analyser[0] || this.waa.analyser).frequencyBinCount
-
-    this.waveNda = ndarray(new Float32Array(size), [size, 1])
-    this.waveTex = Texture(gl, this.waveNda, { float: true })
-    this.waveFlt = this.waveNda.data
-
-    this.freqNda = ndarray(new Float32Array(size), [size, 1])
-    this.freqTex = Texture(gl, this.freqNda, { float: true })
-    this.freqFlt = this.freqNda.data
-  }
-
-  waveform = (channel) => {
-    return this.waa.waveform(null, channel)
-  }
-
-  frequencies = (channel) => {
-    return this.waa.frequencies(null, channel)
-  }
-
-  bindWaveform = (index) => {
-    var wave = this.waveform()
-    var waveFlt = this.waveFlt
-
-    for (var i = 0; i < wave.length; i++) {
-      waveFlt[i] = (wave[i] - 128) / 128
-    }
-
-    var retVal = this.waveTex.bind(index)
-    this.waveTex.setPixels(this.waveNda)
-    return retVal
-  }
-
-  bindFrequencies = (index) => {
-    var freq = this.frequencies()
-    var freqFlt = this.freqFlt
-
-    for (var i = 0; i < freq.length; i++) {
-      freqFlt[i] = freq[i] / 256
-    }
-
-    var retVal = this.freqTex.bind(index)
-    this.freqTex.setPixels(this.freqNda)
-    return retVal
-  }
-}
diff --git a/packages/web/src/utils/visualizer/butterchurnVisualizer.ts b/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
new file mode 100644
index 00000000000..88802496a2c
--- /dev/null
+++ b/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
@@ -0,0 +1,313 @@
+// Butterchurn (Milkdrop) visualizer engine singleton.
+// Drop-in replacement for the old visualizer-1.js with the same public API shape.
+//
+// butterchurn.createVisualizer(audioContext, canvas, opts) — audioContext must be
+// a Web Audio AudioContext, NOT a WebGL context. The visualizer is therefore created
+// lazily inside bind() once we have the AudioContext from the audio player.
+
+import butterchurn from 'butterchurn'
+// @ts-expect-error - butterchurn/lib/isSupported.min has no types
+import isSupported from 'butterchurn/lib/isSupported.min'
+
+import { loadPresets, getPresetKeys, getRandomPresetKey } from './presets'
+
+const BLEND_TIME = 2.7 // seconds for smooth preset transitions
+const AUTO_CYCLE_MS = 45000 // auto-advance interval
+const PRESET_HISTORY_MAX = 10
+
+type AudioPlayerLike = {
+  source: AudioNode | null
+  audioCtx: AudioContext | null
+}
+
+type PresetMap = Record<string, object>
+
+let canvas: HTMLCanvasElement | null = null
+let visualizer: any = null
+let animFrameId: number | null = null
+let autoCycleTimer: ReturnType<typeof setInterval> | null = null
+let presets: PresetMap | null = null
+let presetKeys: string[] = []
+let currentPresetIndex = -1
+let currentPresetName: string | null = null
+let connectedAudioNode: AudioNode | null = null
+let presetHistoryPast: string[] = []
+let presetHistoryFuture: string[] = []
+let onHistoryChange: (() => void) | null = null
+
+function trimHistory(arr: string[]) {
+  while (arr.length > PRESET_HISTORY_MAX) {
+    arr.shift()
+  }
+}
+
+function notifyHistory() {
+  onHistoryChange?.()
+}
+
+function clearPresetHistory() {
+  presetHistoryPast = []
+  presetHistoryFuture = []
+  notifyHistory()
+}
+
+function createCanvas(): HTMLCanvasElement {
+  const c = document.createElement('canvas')
+  // position:fixed ensures the canvas covers the full viewport regardless of
+  // where it lives in the DOM tree (avoids being clipped by positioned ancestors).
+  c.style.position = 'fixed'
+  c.style.top = '0'
+  c.style.left = '0'
+  c.style.width = '100vw'
+  c.style.height = '100vh'
+  // Must not capture pointer events — otherwise overlay onMouseMove never runs and
+  // chrome (close, controls) tied to mouse activity stay hidden.
+  c.style.pointerEvents = 'none'
+  c.style.display = 'none'
+  return c
+}
+
+function handleResize() {
+  if (!canvas || !visualizer) return
+  // clientWidth/Height may be 0 if canvas isn't in the DOM yet; fall back to window.
+  const w = canvas.clientWidth || window.innerWidth
+  const h = canvas.clientHeight || window.innerHeight
+  const width = w * window.devicePixelRatio
+  const height = h * window.devicePixelRatio
+  if (!width || !height) return
+  canvas.width = width
+  canvas.height = height
+  visualizer.setRendererSize(width, height)
+}
+
+function renderLoop() {
+  if (visualizer) {
+    visualizer.render()
+  }
+  animFrameId = requestAnimationFrame(renderLoop)
+}
+
+function loadPresetByIndex(index: number, blendTime: number) {
+  if (!visualizer || !presets || presetKeys.length === 0) return
+  const wrappedIndex =
+    ((index % presetKeys.length) + presetKeys.length) % presetKeys.length
+  currentPresetIndex = wrappedIndex
+  currentPresetName = presetKeys[wrappedIndex]
+  try {
+    visualizer.loadPreset(presets[currentPresetName], blendTime)
+  } catch {
+    // Bad or incompatible preset data — skip without taking down the app
+  }
+}
+
+async function initPresets() {
+  if (!presets) {
+    presets = await loadPresets()
+    presetKeys = getPresetKeys(presets)
+  }
+}
+
+// --- Public API ---
+
+function createVisualizerWithAudioContext(audioCtx: AudioContext) {
+  if (!canvas) return
+
+  // Canvas may not be in the DOM yet when bind() fires before show(); use window as fallback.
+  const w = canvas.clientWidth || window.innerWidth
+  const h = canvas.clientHeight || window.innerHeight
+  const width = Math.max(w * window.devicePixelRatio, 800)
+  const height = Math.max(h * window.devicePixelRatio, 600)
+  canvas.width = width
+  canvas.height = height
+
+  visualizer = butterchurn.createVisualizer(audioCtx, canvas, {
+    width,
+    height,
+    pixelRatio: window.devicePixelRatio || 1
+  })
+
+  if (connectedAudioNode) {
+    visualizer.connectAudio(connectedAudioNode)
+  }
+
+  // Start the render loop now that butterchurn exists
+  if (canvas.style.display !== 'none' && animFrameId === null) {
+    animFrameId = requestAnimationFrame(renderLoop)
+  }
+
+  initPresets().then(() => {
+    if (presets && presetKeys.length > 0 && visualizer) {
+      const key = getRandomPresetKey(presets, currentPresetName)
+      const idx = presetKeys.indexOf(key)
+      loadPresetByIndex(idx >= 0 ? idx : 0, 0)
+    }
+  })
+}
+
+function show() {
+  if (!isSupported()) return
+
+  if (!canvas) {
+    canvas = createCanvas()
+  }
+
+  // Re-attach if the React component remounted and the wrapper is a new node
+  const visWrapper = document.querySelector('.visualizer')
+  if (visWrapper && !visWrapper.contains(canvas)) {
+    visWrapper.appendChild(canvas)
+  }
+
+  // Un-hide without removing from DOM (removing causes WebGL context loss)
+  canvas.style.display = 'block'
+
+  window.addEventListener('resize', handleResize)
+  handleResize()
+
+  // Only start the render loop once butterchurn is ready
+  if (visualizer && animFrameId === null) {
+    animFrameId = requestAnimationFrame(renderLoop)
+  }
+}
+
+function hide() {
+  try {
+    if (animFrameId !== null) {
+      cancelAnimationFrame(animFrameId)
+      animFrameId = null
+    }
+    stopAutoCycle()
+    window.removeEventListener('resize', handleResize)
+    clearPresetHistory()
+
+    // Hide via CSS — never remove from DOM to avoid WebGL context loss
+    if (canvas) {
+      canvas.style.display = 'none'
+    }
+  } catch {
+    // Defensive: closing must never crash the shell
+  }
+}
+
+function bind(audioPlayer: AudioPlayerLike) {
+  connectedAudioNode = audioPlayer.source
+
+  if (!audioPlayer.audioCtx) return
+
+  // Create canvas early if show() hasn't run yet. React fires this effect before
+  // the isVisible effect (component definition order), so canvas may be null here.
+  if (!canvas) {
+    canvas = createCanvas()
+  }
+
+  if (!visualizer) {
+    createVisualizerWithAudioContext(audioPlayer.audioCtx)
+    return
+  }
+
+  if (connectedAudioNode) {
+    visualizer.connectAudio(connectedAudioNode)
+  }
+}
+
+function stop() {
+  if (animFrameId !== null) {
+    cancelAnimationFrame(animFrameId)
+    animFrameId = null
+  }
+  stopAutoCycle()
+}
+
+// No-op: Milkdrop presets have their own color systems
+function setDominantColors(_colors?: any) {}
+
+function pushCurrentOntoPastAndClearFuture() {
+  if (currentPresetName) {
+    presetHistoryPast.push(currentPresetName)
+    trimHistory(presetHistoryPast)
+  }
+  presetHistoryFuture = []
+}
+
+/** New random preset; current moves into back history (for Back / auto-advance). */
+function randomPreset() {
+  if (!presets || presetKeys.length === 0) return
+  pushCurrentOntoPastAndClearFuture()
+  const key = getRandomPresetKey(presets, currentPresetName)
+  const idx = presetKeys.indexOf(key)
+  loadPresetByIndex(idx >= 0 ? idx : 0, BLEND_TIME)
+  notifyHistory()
+}
+
+function historyBack() {
+  if (presetHistoryPast.length === 0) return
+  const key = presetHistoryPast.pop()!
+  if (currentPresetName) {
+    presetHistoryFuture.push(currentPresetName)
+    trimHistory(presetHistoryFuture)
+  }
+  const idx = presetKeys.indexOf(key)
+  if (idx >= 0) loadPresetByIndex(idx, BLEND_TIME)
+  notifyHistory()
+}
+
+function historyForward() {
+  if (presetHistoryFuture.length === 0) return
+  const key = presetHistoryFuture.pop()!
+  if (currentPresetName) {
+    presetHistoryPast.push(currentPresetName)
+    trimHistory(presetHistoryPast)
+  }
+  const idx = presetKeys.indexOf(key)
+  if (idx >= 0) loadPresetByIndex(idx, BLEND_TIME)
+  notifyHistory()
+}
+
+/** Redo along forward stack, or at the tip pick a new random preset (like browser forward). */
+function historyForwardOrNext() {
+  if (presetHistoryFuture.length > 0) {
+    historyForward()
+  } else {
+    randomPreset()
+  }
+}
+
+function canHistoryBack() {
+  return presetHistoryPast.length > 0
+}
+
+function startAutoCycle() {
+  stopAutoCycle()
+  autoCycleTimer = setInterval(() => {
+    randomPreset()
+  }, AUTO_CYCLE_MS)
+}
+
+function stopAutoCycle() {
+  if (autoCycleTimer !== null) {
+    clearInterval(autoCycleTimer)
+    autoCycleTimer = null
+  }
+}
+
+function setOnHistoryChange(cb: (() => void) | null) {
+  onHistoryChange = cb
+}
+
+const ButterchurnVisualizer = isSupported()
+  ? {
+      show,
+      hide,
+      bind,
+      stop,
+      setDominantColors,
+      randomPreset,
+      historyBack,
+      historyForwardOrNext,
+      canHistoryBack,
+      startAutoCycle,
+      stopAutoCycle,
+      setOnHistoryChange
+    }
+  : null
+
+export default ButterchurnVisualizer
diff --git a/packages/web/src/utils/visualizer/gl-line-3d.js b/packages/web/src/utils/visualizer/gl-line-3d.js
deleted file mode 100644
index 74a6b305016..00000000000
--- a/packages/web/src/utils/visualizer/gl-line-3d.js
+++ /dev/null
@@ -1,154 +0,0 @@
-import createBuffer from 'gl-buffer'
-import createVAO from 'gl-vao'
-
-import pack from 'array-pack-2d'
-import identity from 'gl-mat4/identity'
-import clamp from 'clamp'
-
-export default function (gl, shader, path) {
-  if (!shader) throw new TypeError('need to pass a shader')
-  shader.bind()
-  shader.attributes.position.location = 0
-  shader.attributes.direction.location = 1
-  shader.attributes.next.location = 2
-  shader.attributes.previous.location = 3
-
-  // each vertex has the following attribs:
-  // vec3 position   //current point on line
-  // vec3 previous   //previous point on line
-  // vec3 next       //next point on line
-  // float direction //a sign, -1 or 1
-
-  // we submit two vertices per point so that
-  // we can expand them away from each other
-  let indexBuffer = emptyBuffer(Uint16Array, gl.ELEMENT_ARRAY_BUFFER)
-  let positionBuffer = emptyBuffer()
-  let previousBuffer = emptyBuffer()
-  let nextBuffer = emptyBuffer()
-  let directionBuffer = emptyBuffer()
-  let count = 0
-  let vao = createVAO(gl)
-
-  // default uniforms
-  let model = identity([])
-  let projection = identity([])
-  let view = identity([])
-  let thickness = 1
-  let aspect = 1
-  let miter = 0
-  let color = [1, 1, 1]
-
-  if (path) update(path)
-
-  return {
-    update,
-    model,
-    view,
-    projection,
-    thickness,
-    color,
-    miter,
-    aspect,
-
-    draw() {
-      shader.bind()
-      shader.uniforms.model = this.model
-      shader.uniforms.view = this.view
-      shader.uniforms.projection = this.projection
-      shader.uniforms.color = this.color
-      shader.uniforms.thickness = this.thickness
-      shader.uniforms.aspect = this.aspect
-      shader.uniforms.miter = this.miter
-
-      vao.bind()
-      vao.draw(gl.TRIANGLES, count)
-      vao.unbind()
-    }
-  }
-
-  // in real-world you wouldn't want to create so
-  // many typed arrays per frame
-  function update(path) {
-    // ensure 3 component vectors
-    if (path.length > 0 && path[0].length !== 3) {
-      path = path.map((point) => {
-        let [x, y, z] = point
-        return [x || 0, y || 0, z || 0]
-      })
-    }
-
-    count = (path.length - 1) * 6
-
-    // each pair has a mirrored direction
-    let direction = duplicate(
-      path.map((x) => 1),
-      true
-    )
-    // now get the positional data for each vertex
-    let positions = duplicate(path)
-    let previous = duplicate(path.map(relative(-1)))
-    let next = duplicate(path.map(relative(+1)))
-    let indexUint16 = createIndices(path.length)
-
-    // now update the buffers with float/short data
-    positionBuffer.update(pack(positions))
-    previousBuffer.update(pack(previous))
-    nextBuffer.update(pack(next))
-    directionBuffer.update(pack(direction))
-    indexBuffer.update(indexUint16)
-
-    vao.update(
-      [
-        { buffer: positionBuffer, size: 3 },
-        { buffer: directionBuffer, size: 1 },
-        { buffer: nextBuffer, size: 3 },
-        { buffer: previousBuffer, size: 3 }
-      ],
-      indexBuffer
-    )
-  }
-
-  function emptyBuffer(ArrayType, type) {
-    ArrayType = ArrayType || Float32Array
-    return createBuffer(
-      gl,
-      new ArrayType(),
-      type || gl.ARRAY_BUFFER,
-      gl.STATIC_DRAW
-    )
-  }
-}
-
-function relative(offset) {
-  return (point, index, list) => {
-    index = clamp(index + offset, 0, list.length - 1)
-    return list[index]
-  }
-}
-
-function duplicate(nestedArray, mirror) {
-  var out = []
-  nestedArray.forEach((x) => {
-    let x1 = mirror ? -x : x
-    out.push(x1, x)
-  })
-  return out
-}
-
-// counter-clockwise indices but prepared for duplicate vertices
-function createIndices(length) {
-  let indices = new Uint16Array(length * 6)
-  let c = 0
-  let index = 0
-  for (let j = 0; j < length; j++) {
-    let i = index
-    indices[c++] = i + 0
-    indices[c++] = i + 1
-    indices[c++] = i + 2
-    indices[c++] = i + 2
-    indices[c++] = i + 1
-    indices[c++] = i + 3
-    index += 2
-  }
-  return indices
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/.npmignore b/packages/web/src/utils/visualizer/gl-vignette-background/.npmignore
deleted file mode 100644
index 50c74582d56..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/.npmignore
+++ /dev/null
@@ -1,6 +0,0 @@
-node_modules
-*.log
-.DS_Store
-bundle.js
-test
-test.js
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/LICENSE.md b/packages/web/src/utils/visualizer/gl-vignette-background/LICENSE.md
deleted file mode 100644
index 927a999b6ee..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/LICENSE.md
+++ /dev/null
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-Copyright (c) 2014 Matt DesLauriers
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
-OR OTHER DEALINGS IN THE SOFTWARE.
-
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/README.md b/packages/web/src/utils/visualizer/gl-vignette-background/README.md
deleted file mode 100644
index b3f68fe3c04..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/README.md
+++ /dev/null
@@ -1,106 +0,0 @@
-# gl-vignette-background
-
-[![experimental](http://badges.github.io/stability-badges/dist/experimental.svg)](http://github.com/badges/stability-badges)
-
-Creates a soft gradient background with noise, suitable for your sweet WebGL demos!
-
-![demo](http://i.imgur.com/IMRLl9D.png)
-
-```js
-var createBackground = require('gl-vignette-background')
-
-var width = 490,
-	height = 400
-
-var gl = require('webgl-context')({
-    width: width
-    height: height
-})
-
-require('domready')(function() {
-	gl.clear(gl.COLOR_BUFFER_BIT)
-    gl.viewport(0, 0, width, height)
-
-    //create our quad
-	var bg = createBackground(gl)
-
-	var radius = width * 1.05
-
-	//optional styling 
-	bg.style({
-        scale: [ 1/width * radius, 1/height * radius],
-        aspect: 1,
-        color1: [1, 1, 1],
-        color2: [40/255, 56/255, 68/255], //rgb expressed in 0.0 - 1.0
-        smoothing: [ -0.5, 1.0 ],
-        noiseAlpha: 0.07,
-        offset: [ -0.05, -0.15 ]
-	})
-
-	//draw the full-screen quad
-	bg.draw()
-
-    //place canvas on DOM
-    document.body.appendChild(gl.canvas)
-})
-```
-
-See [demo/index.js](demo/index.js) for a full-screen example.
-
-## Usage
-
-[![NPM](https://nodei.co/npm/gl-vignette-background.png)](https://nodei.co/npm/gl-vignette-background/)
-
-Inherits functions and members from [gl-quad](https://www.npmjs.org/package/gl-quad).
-
-## functions
-
-### ```var bg = createBackground(gl [, style])```
-
-Creates a background quad with some default options (bright and soft white gradient in the center, using the current canvas size for aspect ratio).
-
-You can provide `style` to override some defaults, e.g:
-
-```js
-bg = createBackground(gl {
-	color1: [ 1, 0, 0]
-})
-```
-
-See [styling](#styling)
-
-
-### ```bg.style(options)```
-
-Style the background with the given overrides in the specified object. Acts the same as the styling options passed to constructor. 
-
-### ```bg.draw()```
-
-Draws the quad.
-
-### ```bg.dispose()```
-
-Disposes the quad and its shader.
-
-## styling
-
-The following options are stylable:
-
-- `aspect`: a float for aspect ratio; typically set whenever the background size changes
-- `smoothing`: a vec2 representing the low and high end for the smooth function
-- `noiseAlpha`: the opacity of the random noise (set to zero to disable)
-- `coloredNoise`: a bool for whether noise is enabled, `1` for chromatic, `0` for monochrome
-- `offset`: the position vec2 offset, normalized. `[0, 0]` is center (default), `[-0.5, -0.5]` will be top left
-- `scale`: the vec2 amount to scale the gradient, normalized. default is `[1, 1]`
-- `color1`: the first `[r, g, b]` color in the gradient, default white
-- `color2`: the second `[r, g, b]` color in the gradient, default black
-
-## running the demo
-
-Install [beefy](https://www.npmjs.org/package/beefy) and run:
-
-```beefy demo/index.js --open```
-
-## License
-
-MIT, see [LICENSE.md](http://github.com/mattdesl/gl-vignette-background/blob/master/LICENSE.md) for details.
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/create-shader.js b/packages/web/src/utils/visualizer/gl-vignette-background/create-shader.js
deleted file mode 100644
index 3a134fa8dbc..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/create-shader.js
+++ /dev/null
@@ -1,30 +0,0 @@
-import { create } from 'gl-shader-core'
-import { cloneDeep } from 'lodash'
-
-var indices = [
-	'position',
-	'normal',
-	'color'
-]
-var tex = 'texcoord'
-
-function idx(name) {
-	var i = indices.indexOf(name)
-	if (i !== -1)
-		return i
-	if (name.indexOf(tex) === 0)
-		return parseInt(name.substring(tex.length), 10)|0 + 3
-	return undefined
-}
-
-function remap(attribute) {
-	attribute.location = idx(attribute.name)
-}
-
-module.exports = function(shader) {
-	return function(gl) {
-		var s = cloneDeep(shader)
-		s.attributes.forEach(remap)
-		return create(gl, s.vertex, s.fragment, s.uniforms, s.attributes)
-	}
-}
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/demo/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/demo/index.js
deleted file mode 100644
index 30678c842e4..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/demo/index.js
+++ /dev/null
@@ -1,37 +0,0 @@
-var shader2
-
-var createBackground = require('../')
-var colorString = require('color-string')
-
-var background
-
-require('canvas-testbed')(render, start, {
-    context: 'webgl',
-    once: true
-})
-
-function rgb(str) {
-    return colorString.getRgb(str).map(function(a) {
-        return a/255
-    })
-}
-
-function render(gl, width, height) {
-    gl.clear(gl.COLOR_BUFFER_BIT)
-
-    var radius = Math.max(width, height) * 1.05
-    background.style({ 
-        scale: [ 1/width * radius, 1/height * radius],
-        aspect: 1,
-        color1: rgb('#ffffff'),
-        color2: rgb('#283844'),
-        smoothing: [ -0.5, 1.0 ],
-        noiseAlpha: 0.07,
-        offset: [ -0.05, -0.15 ]
-    })
-    background.draw()
-}
-
-function start(gl) {
-    background = createBackground(gl)
-}
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/frag.glsl b/packages/web/src/utils/visualizer/gl-vignette-background/frag.glsl
deleted file mode 100644
index 64a213e6457..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/frag.glsl
+++ /dev/null
@@ -1,49 +0,0 @@
-#ifdef GL_ES
-precision mediump float;
-#endif
-
-varying vec2 vUv;
-
-#pragma glslify: random = require(glsl-random)
-
-uniform float aspect;
-uniform vec2 scale; 
-uniform vec2 offset;
-uniform bool coloredNoise;
-
-uniform vec2 smoothing;
-uniform float noiseAlpha;
-
-uniform vec3 color1;
-uniform vec3 color2;
-
-vec3 BlendOverlay(vec3 base, vec3 blend) {
-	return vec3(
-		base.r < 0.5 ? (2.0 * base.r * blend.r) : (1.0 - 2.0 * (1.0 - base.r) * (1.0 - blend.r)),
-		base.g < 0.5 ? (2.0 * base.g * blend.g) : (1.0 - 2.0 * (1.0 - base.g) * (1.0 - blend.g)),
-		base.b < 0.5 ? (2.0 * base.b * blend.b) : (1.0 - 2.0 * (1.0 - base.b) * (1.0 - blend.b))
-	);
-}
-
-//TODO: textures, alpha ? 
-
-void main() {	
-	vec2 pos = vUv;
-	pos -= 0.5;
-
-	pos.x *= aspect;
-	pos /= scale;
-	pos -= offset;
-
-	float dist = length(pos);
-	dist = smoothstep(smoothing.x, smoothing.y, 1.-dist);
-
-	vec4 color = vec4(1.0);
-	color.rgb = mix(color2, color1, dist);
-
-	if (noiseAlpha > 0.0) {
-		vec3 noise = coloredNoise ? vec3(random(vUv * 1.5), random(vUv * 2.5), random(vUv)) : vec3(random(vUv));
-		color.rgb = mix(color.rgb, BlendOverlay(color.rgb, noise), noiseAlpha);
-	}
-	gl_FragColor = color;
-}
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/index.js
deleted file mode 100644
index d46b951b82b..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/index.js
+++ /dev/null
@@ -1,79 +0,0 @@
-// Required to do this in order to play with webpack & create-react-app without ejecting
-import vertexShader from './vert.glsl'
-import fragmentShader from './frag.glsl'
-
-//var glslify = require('glslify')
-import Quad from 'gl-quad'
-import inherits from 'inherits'
-
-import createShader from 'gl-shader'
-
-import toIdentity from 'gl-mat4/identity'
-import mat4 from 'gl-mat4/create'
-
-function Vignette(gl, options) {
-  if (!(this instanceof Vignette)) return new Vignette(gl, options)
-  Quad.call(this, gl)
-  options = options || {}
-  this.gl = gl
-
-  var shader = options.shader
-
-  if (!shader) {
-    this.defaultShader = createShader(gl, vertexShader, fragmentShader)
-
-    //defaultShader(gl)
-  }
-  this.shader = shader || this.defaultShader
-
-  var identity = toIdentity(mat4())
-
-  //some defaults
-  this.style({
-    aspect: gl.canvas.width / gl.canvas.height,
-    smoothing: [-0.4, 0.8],
-    noiseAlpha: 0.04,
-    coloredNoise: true,
-    offset: [0, 0],
-    color1: [1, 1, 1],
-    color2: [0, 0, 0],
-    scale: [1.0, 1.0],
-    projection: identity,
-    view: identity,
-    model: identity
-  })
-
-  //mix in user options
-  if (options) this.style(options)
-}
-
-inherits(Vignette, Quad)
-
-Vignette.prototype.style = function (options) {
-  if (!options) return
-
-  this.shader.bind()
-  var uniforms = this.shader.uniforms
-  for (var k in options) {
-    if (
-      options.hasOwnProperty(k) &&
-      (options[k] || typeof options[k] === 'number')
-    ) {
-      uniforms[k] = options[k]
-    }
-  }
-}
-
-Vignette.prototype.draw = function () {
-  Quad.prototype.draw.call(this, this.shader)
-}
-
-Vignette.prototype.dispose = function () {
-  if (this.defaultShader) {
-    this.defaultShader.dispose()
-    this.defaultShader = undefined
-  }
-  Quad.prototype.dispose.call(this)
-}
-
-export default Vignette
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/esparse b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/esparse
deleted file mode 120000
index 7423b18b24e..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/esparse
+++ /dev/null
@@ -1 +0,0 @@
-../esprima/bin/esparse.js
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/esvalidate b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/esvalidate
deleted file mode 120000
index 16069effbc9..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/esvalidate
+++ /dev/null
@@ -1 +0,0 @@
-../esprima/bin/esvalidate.js
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/glslify b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/glslify
deleted file mode 120000
index 73d1fc5899a..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/.bin/glslify
+++ /dev/null
@@ -1 +0,0 @@
-../glslify/bin/glslify
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/ChangeLog b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/ChangeLog
deleted file mode 100644
index dc24f2f93e2..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/ChangeLog
+++ /dev/null
@@ -1,77 +0,0 @@
-2015-03-03: Version 1.2.5
-
-      * Fix scanning of implicit octal literals (issue 565)
-
-2015-02-05: Version 1.2.4
-
-      * Fix parsing of LeftHandSideExpression in ForInStatement (issue 560)
-      * Fix the handling of automatic semicolon insertion (issue 574)
-
-2015-01-18: Version 1.2.3
-
-      * Fix division by this (issue 616)
-
-2014-05-18: Version 1.2.2
-
-      * Fix duplicated tokens when collecting comments (issue 537)
-
-2014-05-04: Version 1.2.1
-
-      * Ensure that Program node may still have leading comments (issue 536)
-
-2014-04-29: Version 1.2.0
-
-      * Fix semicolon handling for expression statement (issue 462, 533)
-      * Disallow escaped characters in regular expression flags (issue 503)
-      * Performance improvement for location tracking (issue 520)
-      * Improve the speed of comment attachment (issue 522)
-
-2014-03-26: Version 1.1.1
-
-      * Fix token handling of forward slash after an array literal (issue 512)
-
-2014-03-23: Version 1.1.0
-
-      * Optionally attach comments to the owning syntax nodes (issue 197)
-      * Simplify binary parsing with stack-based shift reduce (issue 352)
-      * Always include the raw source of literals (issue 376)
-      * Add optional input source information (issue 386)
-      * Tokenizer API for pure lexical scanning (issue 398)
-      * Improve the web site and its online demos (issue 337, 400, 404)
-      * Performance improvement for location tracking (issue 417, 424)
-      * Support HTML comment syntax (issue 451)
-      * Drop support for legacy browsers (issue 474)
-
-2013-08-27: Version 1.0.4
-
-      * Minimize the payload for packages (issue 362)
-      * Fix missing cases on an empty switch statement (issue 436)
-      * Support escaped ] in regexp literal character classes (issue 442)
-      * Tolerate invalid left-hand side expression (issue 130)
-
-2013-05-17: Version 1.0.3
-
-      * Variable declaration needs at least one declarator (issue 391)
-      * Fix benchmark's variance unit conversion (issue 397)
-      * IE < 9: \v should be treated as vertical tab (issue 405)
-      * Unary expressions should always have prefix: true (issue 418)
-      * Catch clause should only accept an identifier (issue 423)
-      * Tolerate setters without parameter (issue 426)
-
-2012-11-02: Version 1.0.2
-
-    Improvement:
-
-      * Fix esvalidate JUnit output upon a syntax error (issue 374)
-
-2012-10-28: Version 1.0.1
-
-    Improvements:
-
-      * esvalidate understands shebang in a Unix shell script (issue 361)
-      * esvalidate treats fatal parsing failure as an error (issue 361)
-      * Reduce Node.js package via .npmignore (issue 362)
-
-2012-10-22: Version 1.0.0
-
-    Initial release.
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/LICENSE.BSD b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/LICENSE.BSD
deleted file mode 100644
index 3e580c355a9..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/LICENSE.BSD
+++ /dev/null
@@ -1,19 +0,0 @@
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-  * Redistributions of source code must retain the above copyright
-    notice, this list of conditions and the following disclaimer.
-  * Redistributions in binary form must reproduce the above copyright
-    notice, this list of conditions and the following disclaimer in the
-    documentation and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/README.md b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/README.md
deleted file mode 100644
index e76d7640cb4..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/README.md
+++ /dev/null
@@ -1,24 +0,0 @@
-**Esprima** ([esprima.org](http://esprima.org), BSD license) is a high performance,
-standard-compliant [ECMAScript](http://www.ecma-international.org/publications/standards/Ecma-262.htm)
-parser written in ECMAScript (also popularly known as
-[JavaScript](http://en.wikipedia.org/wiki/JavaScript>JavaScript)).
-Esprima is created and maintained by [Ariya Hidayat](http://twitter.com/ariyahidayat),
-with the help of [many contributors](https://github.com/ariya/esprima/contributors).
-
-### Features
-
-- Full support for ECMAScript 5.1 ([ECMA-262](http://www.ecma-international.org/publications/standards/Ecma-262.htm))
-- Sensible [syntax tree format](http://esprima.org/doc/index.html#ast) compatible with Mozilla
-[Parser AST](https://developer.mozilla.org/en/SpiderMonkey/Parser_API)
-- Optional tracking of syntax node location (index-based and line-column)
-- Heavily tested (> 650 [unit tests](http://esprima.org/test/) with [full code coverage](http://esprima.org/test/coverage.html))
-- [Partial support](http://esprima.org/doc/es6.html) for ECMAScript 6
-
-Esprima serves as a **building block** for some JavaScript
-language tools, from [code instrumentation](http://esprima.org/demo/functiontrace.html)
-to [editor autocompletion](http://esprima.org/demo/autocomplete.html).
-
-Esprima runs on many popular web browsers, as well as other ECMAScript platforms such as
-[Rhino](http://www.mozilla.org/rhino), [Nashorn](http://openjdk.java.net/projects/nashorn/), and [Node.js](https://npmjs.org/package/esprima).
-
-For more information, check the web site [esprima.org](http://esprima.org).
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/bin/esparse.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/bin/esparse.js
deleted file mode 100755
index 560366695a1..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/bin/esparse.js
+++ /dev/null
@@ -1,127 +0,0 @@
-#!/usr/bin/env node
-/*
-  Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
-  Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-/*jslint sloppy:true node:true rhino:true */
-
-var fs, esprima, fname, content, options, syntax;
-
-if (typeof require === 'function') {
-    fs = require('fs');
-    esprima = require('esprima');
-} else if (typeof load === 'function') {
-    try {
-        load('esprima.js');
-    } catch (e) {
-        load('../esprima.js');
-    }
-}
-
-// Shims to Node.js objects when running under Rhino.
-if (typeof console === 'undefined' && typeof process === 'undefined') {
-    console = { log: print };
-    fs = { readFileSync: readFile };
-    process = { argv: arguments, exit: quit };
-    process.argv.unshift('esparse.js');
-    process.argv.unshift('rhino');
-}
-
-function showUsage() {
-    console.log('Usage:');
-    console.log('   esparse [options] file.js');
-    console.log();
-    console.log('Available options:');
-    console.log();
-    console.log('  --comment      Gather all line and block comments in an array');
-    console.log('  --loc          Include line-column location info for each syntax node');
-    console.log('  --range        Include index-based range for each syntax node');
-    console.log('  --raw          Display the raw value of literals');
-    console.log('  --tokens       List all tokens in an array');
-    console.log('  --tolerant     Tolerate errors on a best-effort basis (experimental)');
-    console.log('  -v, --version  Shows program version');
-    console.log();
-    process.exit(1);
-}
-
-if (process.argv.length <= 2) {
-    showUsage();
-}
-
-options = {};
-
-process.argv.splice(2).forEach(function (entry) {
-
-    if (entry === '-h' || entry === '--help') {
-        showUsage();
-    } else if (entry === '-v' || entry === '--version') {
-        console.log('ECMAScript Parser (using Esprima version', esprima.version, ')');
-        console.log();
-        process.exit(0);
-    } else if (entry === '--comment') {
-        options.comment = true;
-    } else if (entry === '--loc') {
-        options.loc = true;
-    } else if (entry === '--range') {
-        options.range = true;
-    } else if (entry === '--raw') {
-        options.raw = true;
-    } else if (entry === '--tokens') {
-        options.tokens = true;
-    } else if (entry === '--tolerant') {
-        options.tolerant = true;
-    } else if (entry.slice(0, 2) === '--') {
-        console.log('Error: unknown option ' + entry + '.');
-        process.exit(1);
-    } else if (typeof fname === 'string') {
-        console.log('Error: more than one input file.');
-        process.exit(1);
-    } else {
-        fname = entry;
-    }
-});
-
-if (typeof fname !== 'string') {
-    console.log('Error: no input file.');
-    process.exit(1);
-}
-
-// Special handling for regular expression literal since we need to
-// convert it to a string literal, otherwise it will be decoded
-// as object "{}" and the regular expression would be lost.
-function adjustRegexLiteral(key, value) {
-    if (key === 'value' && value instanceof RegExp) {
-        value = value.toString();
-    }
-    return value;
-}
-
-try {
-    content = fs.readFileSync(fname, 'utf-8');
-    syntax = esprima.parse(content, options);
-    console.log(JSON.stringify(syntax, adjustRegexLiteral, 4));
-} catch (e) {
-    console.log('Error: ' + e.message);
-    process.exit(1);
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/bin/esvalidate.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/bin/esvalidate.js
deleted file mode 100755
index dddd8a2ada4..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/bin/esvalidate.js
+++ /dev/null
@@ -1,199 +0,0 @@
-#!/usr/bin/env node
-/*
-  Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-/*jslint sloppy:true plusplus:true node:true rhino:true */
-/*global phantom:true */
-
-var fs, system, esprima, options, fnames, count;
-
-if (typeof esprima === 'undefined') {
-    // PhantomJS can only require() relative files
-    if (typeof phantom === 'object') {
-        fs = require('fs');
-        system = require('system');
-        esprima = require('./esprima');
-    } else if (typeof require === 'function') {
-        fs = require('fs');
-        esprima = require('esprima');
-    } else if (typeof load === 'function') {
-        try {
-            load('esprima.js');
-        } catch (e) {
-            load('../esprima.js');
-        }
-    }
-}
-
-// Shims to Node.js objects when running under PhantomJS 1.7+.
-if (typeof phantom === 'object') {
-    fs.readFileSync = fs.read;
-    process = {
-        argv: [].slice.call(system.args),
-        exit: phantom.exit
-    };
-    process.argv.unshift('phantomjs');
-}
-
-// Shims to Node.js objects when running under Rhino.
-if (typeof console === 'undefined' && typeof process === 'undefined') {
-    console = { log: print };
-    fs = { readFileSync: readFile };
-    process = { argv: arguments, exit: quit };
-    process.argv.unshift('esvalidate.js');
-    process.argv.unshift('rhino');
-}
-
-function showUsage() {
-    console.log('Usage:');
-    console.log('   esvalidate [options] file.js');
-    console.log();
-    console.log('Available options:');
-    console.log();
-    console.log('  --format=type  Set the report format, plain (default) or junit');
-    console.log('  -v, --version  Print program version');
-    console.log();
-    process.exit(1);
-}
-
-if (process.argv.length <= 2) {
-    showUsage();
-}
-
-options = {
-    format: 'plain'
-};
-
-fnames = [];
-
-process.argv.splice(2).forEach(function (entry) {
-
-    if (entry === '-h' || entry === '--help') {
-        showUsage();
-    } else if (entry === '-v' || entry === '--version') {
-        console.log('ECMAScript Validator (using Esprima version', esprima.version, ')');
-        console.log();
-        process.exit(0);
-    } else if (entry.slice(0, 9) === '--format=') {
-        options.format = entry.slice(9);
-        if (options.format !== 'plain' && options.format !== 'junit') {
-            console.log('Error: unknown report format ' + options.format + '.');
-            process.exit(1);
-        }
-    } else if (entry.slice(0, 2) === '--') {
-        console.log('Error: unknown option ' + entry + '.');
-        process.exit(1);
-    } else {
-        fnames.push(entry);
-    }
-});
-
-if (fnames.length === 0) {
-    console.log('Error: no input file.');
-    process.exit(1);
-}
-
-if (options.format === 'junit') {
-    console.log('<?xml version="1.0" encoding="UTF-8"?>');
-    console.log('<testsuites>');
-}
-
-count = 0;
-fnames.forEach(function (fname) {
-    var content, timestamp, syntax, name;
-    try {
-        content = fs.readFileSync(fname, 'utf-8');
-
-        if (content[0] === '#' && content[1] === '!') {
-            content = '//' + content.substr(2, content.length);
-        }
-
-        timestamp = Date.now();
-        syntax = esprima.parse(content, { tolerant: true });
-
-        if (options.format === 'junit') {
-
-            name = fname;
-            if (name.lastIndexOf('/') >= 0) {
-                name = name.slice(name.lastIndexOf('/') + 1);
-            }
-
-            console.log('<testsuite name="' + fname + '" errors="0" ' +
-                ' failures="' + syntax.errors.length + '" ' +
-                ' tests="' + syntax.errors.length + '" ' +
-                ' time="' + Math.round((Date.now() - timestamp) / 1000) +
-                '">');
-
-            syntax.errors.forEach(function (error) {
-                var msg = error.message;
-                msg = msg.replace(/^Line\ [0-9]*\:\ /, '');
-                console.log('  <testcase name="Line ' + error.lineNumber + ': ' + msg + '" ' +
-                    ' time="0">');
-                console.log('    <error type="SyntaxError" message="' + error.message + '">' +
-                    error.message + '(' + name + ':' + error.lineNumber + ')' +
-                    '</error>');
-                console.log('  </testcase>');
-            });
-
-            console.log('</testsuite>');
-
-        } else if (options.format === 'plain') {
-
-            syntax.errors.forEach(function (error) {
-                var msg = error.message;
-                msg = msg.replace(/^Line\ [0-9]*\:\ /, '');
-                msg = fname + ':' + error.lineNumber + ': ' + msg;
-                console.log(msg);
-                ++count;
-            });
-
-        }
-    } catch (e) {
-        ++count;
-        if (options.format === 'junit') {
-            console.log('<testsuite name="' + fname + '" errors="1" failures="0" tests="1" ' +
-                ' time="' + Math.round((Date.now() - timestamp) / 1000) + '">');
-            console.log(' <testcase name="' + e.message + '" ' + ' time="0">');
-            console.log(' <error type="ParseError" message="' + e.message + '">' +
-                e.message + '(' + fname + ((e.lineNumber) ? ':' + e.lineNumber : '') +
-                ')</error>');
-            console.log(' </testcase>');
-            console.log('</testsuite>');
-        } else {
-            console.log('Error: ' + e.message);
-        }
-    }
-});
-
-if (options.format === 'junit') {
-    console.log('</testsuites>');
-}
-
-if (count > 0) {
-    process.exit(1);
-}
-
-if (count === 0 && typeof phantom === 'object') {
-    process.exit(0);
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/esprima.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/esprima.js
deleted file mode 100644
index 595a06602e5..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/esprima.js
+++ /dev/null
@@ -1,3772 +0,0 @@
-/*
-  Copyright (C) 2013 Ariya Hidayat <ariya.hidayat@gmail.com>
-  Copyright (C) 2013 Thaddee Tyl <thaddee.tyl@gmail.com>
-  Copyright (C) 2013 Mathias Bynens <mathias@qiwi.be>
-  Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
-  Copyright (C) 2012 Mathias Bynens <mathias@qiwi.be>
-  Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
-  Copyright (C) 2012 Kris Kowal <kris.kowal@cixar.com>
-  Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
-  Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
-  Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-/*jslint bitwise:true plusplus:true */
-/*global esprima:true, define:true, exports:true, window: true,
-throwErrorTolerant: true,
-throwError: true, generateStatement: true, peek: true,
-parseAssignmentExpression: true, parseBlock: true, parseExpression: true,
-parseFunctionDeclaration: true, parseFunctionExpression: true,
-parseFunctionSourceElements: true, parseVariableIdentifier: true,
-parseLeftHandSideExpression: true,
-parseUnaryExpression: true,
-parseStatement: true, parseSourceElement: true */
-
-(function (root, factory) {
-    'use strict';
-
-    // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
-    // Rhino, and plain browser loading.
-
-    /* istanbul ignore next */
-    if (typeof define === 'function' && define.amd) {
-        define(['exports'], factory);
-    } else if (typeof exports !== 'undefined') {
-        factory(exports);
-    } else {
-        factory((root.esprima = {}));
-    }
-}(this, function (exports) {
-    'use strict';
-
-    var Token,
-        TokenName,
-        FnExprTokens,
-        Syntax,
-        PropertyKind,
-        Messages,
-        Regex,
-        SyntaxTreeDelegate,
-        source,
-        strict,
-        index,
-        lineNumber,
-        lineStart,
-        length,
-        delegate,
-        lookahead,
-        state,
-        extra;
-
-    Token = {
-        BooleanLiteral: 1,
-        EOF: 2,
-        Identifier: 3,
-        Keyword: 4,
-        NullLiteral: 5,
-        NumericLiteral: 6,
-        Punctuator: 7,
-        StringLiteral: 8,
-        RegularExpression: 9
-    };
-
-    TokenName = {};
-    TokenName[Token.BooleanLiteral] = 'Boolean';
-    TokenName[Token.EOF] = '<end>';
-    TokenName[Token.Identifier] = 'Identifier';
-    TokenName[Token.Keyword] = 'Keyword';
-    TokenName[Token.NullLiteral] = 'Null';
-    TokenName[Token.NumericLiteral] = 'Numeric';
-    TokenName[Token.Punctuator] = 'Punctuator';
-    TokenName[Token.StringLiteral] = 'String';
-    TokenName[Token.RegularExpression] = 'RegularExpression';
-
-    // A function following one of those tokens is an expression.
-    FnExprTokens = ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
-                    'return', 'case', 'delete', 'throw', 'void',
-                    // assignment operators
-                    '=', '+=', '-=', '*=', '/=', '%=', '<<=', '>>=', '>>>=',
-                    '&=', '|=', '^=', ',',
-                    // binary/unary operators
-                    '+', '-', '*', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
-                    '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
-                    '<=', '<', '>', '!=', '!=='];
-
-    Syntax = {
-        AssignmentExpression: 'AssignmentExpression',
-        ArrayExpression: 'ArrayExpression',
-        BlockStatement: 'BlockStatement',
-        BinaryExpression: 'BinaryExpression',
-        BreakStatement: 'BreakStatement',
-        CallExpression: 'CallExpression',
-        CatchClause: 'CatchClause',
-        ConditionalExpression: 'ConditionalExpression',
-        ContinueStatement: 'ContinueStatement',
-        DoWhileStatement: 'DoWhileStatement',
-        DebuggerStatement: 'DebuggerStatement',
-        EmptyStatement: 'EmptyStatement',
-        ExpressionStatement: 'ExpressionStatement',
-        ForStatement: 'ForStatement',
-        ForInStatement: 'ForInStatement',
-        FunctionDeclaration: 'FunctionDeclaration',
-        FunctionExpression: 'FunctionExpression',
-        Identifier: 'Identifier',
-        IfStatement: 'IfStatement',
-        Literal: 'Literal',
-        LabeledStatement: 'LabeledStatement',
-        LogicalExpression: 'LogicalExpression',
-        MemberExpression: 'MemberExpression',
-        NewExpression: 'NewExpression',
-        ObjectExpression: 'ObjectExpression',
-        Program: 'Program',
-        Property: 'Property',
-        ReturnStatement: 'ReturnStatement',
-        SequenceExpression: 'SequenceExpression',
-        SwitchStatement: 'SwitchStatement',
-        SwitchCase: 'SwitchCase',
-        ThisExpression: 'ThisExpression',
-        ThrowStatement: 'ThrowStatement',
-        TryStatement: 'TryStatement',
-        UnaryExpression: 'UnaryExpression',
-        UpdateExpression: 'UpdateExpression',
-        VariableDeclaration: 'VariableDeclaration',
-        VariableDeclarator: 'VariableDeclarator',
-        WhileStatement: 'WhileStatement',
-        WithStatement: 'WithStatement'
-    };
-
-    PropertyKind = {
-        Data: 1,
-        Get: 2,
-        Set: 4
-    };
-
-    // Error messages should be identical to V8.
-    Messages = {
-        UnexpectedToken:  'Unexpected token %0',
-        UnexpectedNumber:  'Unexpected number',
-        UnexpectedString:  'Unexpected string',
-        UnexpectedIdentifier:  'Unexpected identifier',
-        UnexpectedReserved:  'Unexpected reserved word',
-        UnexpectedEOS:  'Unexpected end of input',
-        NewlineAfterThrow:  'Illegal newline after throw',
-        InvalidRegExp: 'Invalid regular expression',
-        UnterminatedRegExp:  'Invalid regular expression: missing /',
-        InvalidLHSInAssignment:  'Invalid left-hand side in assignment',
-        InvalidLHSInForIn:  'Invalid left-hand side in for-in',
-        MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
-        NoCatchOrFinally:  'Missing catch or finally after try',
-        UnknownLabel: 'Undefined label \'%0\'',
-        Redeclaration: '%0 \'%1\' has already been declared',
-        IllegalContinue: 'Illegal continue statement',
-        IllegalBreak: 'Illegal break statement',
-        IllegalReturn: 'Illegal return statement',
-        StrictModeWith:  'Strict mode code may not include a with statement',
-        StrictCatchVariable:  'Catch variable may not be eval or arguments in strict mode',
-        StrictVarName:  'Variable name may not be eval or arguments in strict mode',
-        StrictParamName:  'Parameter name eval or arguments is not allowed in strict mode',
-        StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
-        StrictFunctionName:  'Function name may not be eval or arguments in strict mode',
-        StrictOctalLiteral:  'Octal literals are not allowed in strict mode.',
-        StrictDelete:  'Delete of an unqualified identifier in strict mode.',
-        StrictDuplicateProperty:  'Duplicate data property in object literal not allowed in strict mode',
-        AccessorDataProperty:  'Object literal may not have data and accessor property with the same name',
-        AccessorGetSet:  'Object literal may not have multiple get/set accessors with the same name',
-        StrictLHSAssignment:  'Assignment to eval or arguments is not allowed in strict mode',
-        StrictLHSPostfix:  'Postfix increment/decrement may not have eval or arguments operand in strict mode',
-        StrictLHSPrefix:  'Prefix increment/decrement may not have eval or arguments operand in strict mode',
-        StrictReservedWord:  'Use of future reserved word in strict mode'
-    };
-
-    // See also tools/generate-unicode-regex.py.
-    Regex = {
-        NonAsciiIdentifierStart: new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]'),
-        NonAsciiIdentifierPart: new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u08A0\u08A2-\u08AC\u08E4-\u08FE\u0900-\u0963\u0966-\u096F\u0971-\u0977\u0979-\u097F\u0981-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C01-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58\u0C59\u0C60-\u0C63\u0C66-\u0C6F\u0C82\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D02\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D57\u0D60-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191C\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1CD0-\u1CD2\u1CD4-\u1CF6\u1D00-\u1DE6\u1DFC-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200C\u200D\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA697\uA69F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA827\uA840-\uA873\uA880-\uA8C4\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A\uAA7B\uAA80-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE26\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]')
-    };
-
-    // Ensure the condition is true, otherwise throw an error.
-    // This is only to have a better contract semantic, i.e. another safety net
-    // to catch a logic error. The condition shall be fulfilled in normal case.
-    // Do NOT use this to enforce a certain condition on any user input.
-
-    function assert(condition, message) {
-        /* istanbul ignore if */
-        if (!condition) {
-            throw new Error('ASSERT: ' + message);
-        }
-    }
-
-    function isDecimalDigit(ch) {
-        return (ch >= 48 && ch <= 57);   // 0..9
-    }
-
-    function isHexDigit(ch) {
-        return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
-    }
-
-    function isOctalDigit(ch) {
-        return '01234567'.indexOf(ch) >= 0;
-    }
-
-
-    // 7.2 White Space
-
-    function isWhiteSpace(ch) {
-        return (ch === 0x20) || (ch === 0x09) || (ch === 0x0B) || (ch === 0x0C) || (ch === 0xA0) ||
-            (ch >= 0x1680 && [0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(ch) >= 0);
-    }
-
-    // 7.3 Line Terminators
-
-    function isLineTerminator(ch) {
-        return (ch === 0x0A) || (ch === 0x0D) || (ch === 0x2028) || (ch === 0x2029);
-    }
-
-    // 7.6 Identifier Names and Identifiers
-
-    function isIdentifierStart(ch) {
-        return (ch === 0x24) || (ch === 0x5F) ||  // $ (dollar) and _ (underscore)
-            (ch >= 0x41 && ch <= 0x5A) ||         // A..Z
-            (ch >= 0x61 && ch <= 0x7A) ||         // a..z
-            (ch === 0x5C) ||                      // \ (backslash)
-            ((ch >= 0x80) && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch)));
-    }
-
-    function isIdentifierPart(ch) {
-        return (ch === 0x24) || (ch === 0x5F) ||  // $ (dollar) and _ (underscore)
-            (ch >= 0x41 && ch <= 0x5A) ||         // A..Z
-            (ch >= 0x61 && ch <= 0x7A) ||         // a..z
-            (ch >= 0x30 && ch <= 0x39) ||         // 0..9
-            (ch === 0x5C) ||                      // \ (backslash)
-            ((ch >= 0x80) && Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch)));
-    }
-
-    // 7.6.1.2 Future Reserved Words
-
-    function isFutureReservedWord(id) {
-        switch (id) {
-        case 'class':
-        case 'enum':
-        case 'export':
-        case 'extends':
-        case 'import':
-        case 'super':
-            return true;
-        default:
-            return false;
-        }
-    }
-
-    function isStrictModeReservedWord(id) {
-        switch (id) {
-        case 'implements':
-        case 'interface':
-        case 'package':
-        case 'private':
-        case 'protected':
-        case 'public':
-        case 'static':
-        case 'yield':
-        case 'let':
-            return true;
-        default:
-            return false;
-        }
-    }
-
-    function isRestrictedWord(id) {
-        return id === 'eval' || id === 'arguments';
-    }
-
-    // 7.6.1.1 Keywords
-
-    function isKeyword(id) {
-        if (strict && isStrictModeReservedWord(id)) {
-            return true;
-        }
-
-        // 'const' is specialized as Keyword in V8.
-        // 'yield' and 'let' are for compatiblity with SpiderMonkey and ES.next.
-        // Some others are from future reserved words.
-
-        switch (id.length) {
-        case 2:
-            return (id === 'if') || (id === 'in') || (id === 'do');
-        case 3:
-            return (id === 'var') || (id === 'for') || (id === 'new') ||
-                (id === 'try') || (id === 'let');
-        case 4:
-            return (id === 'this') || (id === 'else') || (id === 'case') ||
-                (id === 'void') || (id === 'with') || (id === 'enum');
-        case 5:
-            return (id === 'while') || (id === 'break') || (id === 'catch') ||
-                (id === 'throw') || (id === 'const') || (id === 'yield') ||
-                (id === 'class') || (id === 'super');
-        case 6:
-            return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
-                (id === 'switch') || (id === 'export') || (id === 'import');
-        case 7:
-            return (id === 'default') || (id === 'finally') || (id === 'extends');
-        case 8:
-            return (id === 'function') || (id === 'continue') || (id === 'debugger');
-        case 10:
-            return (id === 'instanceof');
-        default:
-            return false;
-        }
-    }
-
-    // 7.4 Comments
-
-    function addComment(type, value, start, end, loc) {
-        var comment, attacher;
-
-        assert(typeof start === 'number', 'Comment must have valid position');
-
-        // Because the way the actual token is scanned, often the comments
-        // (if any) are skipped twice during the lexical analysis.
-        // Thus, we need to skip adding a comment if the comment array already
-        // handled it.
-        if (state.lastCommentStart >= start) {
-            return;
-        }
-        state.lastCommentStart = start;
-
-        comment = {
-            type: type,
-            value: value
-        };
-        if (extra.range) {
-            comment.range = [start, end];
-        }
-        if (extra.loc) {
-            comment.loc = loc;
-        }
-        extra.comments.push(comment);
-        if (extra.attachComment) {
-            extra.leadingComments.push(comment);
-            extra.trailingComments.push(comment);
-        }
-    }
-
-    function skipSingleLineComment(offset) {
-        var start, loc, ch, comment;
-
-        start = index - offset;
-        loc = {
-            start: {
-                line: lineNumber,
-                column: index - lineStart - offset
-            }
-        };
-
-        while (index < length) {
-            ch = source.charCodeAt(index);
-            ++index;
-            if (isLineTerminator(ch)) {
-                if (extra.comments) {
-                    comment = source.slice(start + offset, index - 1);
-                    loc.end = {
-                        line: lineNumber,
-                        column: index - lineStart - 1
-                    };
-                    addComment('Line', comment, start, index - 1, loc);
-                }
-                if (ch === 13 && source.charCodeAt(index) === 10) {
-                    ++index;
-                }
-                ++lineNumber;
-                lineStart = index;
-                return;
-            }
-        }
-
-        if (extra.comments) {
-            comment = source.slice(start + offset, index);
-            loc.end = {
-                line: lineNumber,
-                column: index - lineStart
-            };
-            addComment('Line', comment, start, index, loc);
-        }
-    }
-
-    function skipMultiLineComment() {
-        var start, loc, ch, comment;
-
-        if (extra.comments) {
-            start = index - 2;
-            loc = {
-                start: {
-                    line: lineNumber,
-                    column: index - lineStart - 2
-                }
-            };
-        }
-
-        while (index < length) {
-            ch = source.charCodeAt(index);
-            if (isLineTerminator(ch)) {
-                if (ch === 0x0D && source.charCodeAt(index + 1) === 0x0A) {
-                    ++index;
-                }
-                ++lineNumber;
-                ++index;
-                lineStart = index;
-                if (index >= length) {
-                    throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-                }
-            } else if (ch === 0x2A) {
-                // Block comment ends with '*/'.
-                if (source.charCodeAt(index + 1) === 0x2F) {
-                    ++index;
-                    ++index;
-                    if (extra.comments) {
-                        comment = source.slice(start + 2, index - 2);
-                        loc.end = {
-                            line: lineNumber,
-                            column: index - lineStart
-                        };
-                        addComment('Block', comment, start, index, loc);
-                    }
-                    return;
-                }
-                ++index;
-            } else {
-                ++index;
-            }
-        }
-
-        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-    }
-
-    function skipComment() {
-        var ch, start;
-
-        start = (index === 0);
-        while (index < length) {
-            ch = source.charCodeAt(index);
-
-            if (isWhiteSpace(ch)) {
-                ++index;
-            } else if (isLineTerminator(ch)) {
-                ++index;
-                if (ch === 0x0D && source.charCodeAt(index) === 0x0A) {
-                    ++index;
-                }
-                ++lineNumber;
-                lineStart = index;
-                start = true;
-            } else if (ch === 0x2F) { // U+002F is '/'
-                ch = source.charCodeAt(index + 1);
-                if (ch === 0x2F) {
-                    ++index;
-                    ++index;
-                    skipSingleLineComment(2);
-                    start = true;
-                } else if (ch === 0x2A) {  // U+002A is '*'
-                    ++index;
-                    ++index;
-                    skipMultiLineComment();
-                } else {
-                    break;
-                }
-            } else if (start && ch === 0x2D) { // U+002D is '-'
-                // U+003E is '>'
-                if ((source.charCodeAt(index + 1) === 0x2D) && (source.charCodeAt(index + 2) === 0x3E)) {
-                    // '-->' is a single-line comment
-                    index += 3;
-                    skipSingleLineComment(3);
-                } else {
-                    break;
-                }
-            } else if (ch === 0x3C) { // U+003C is '<'
-                if (source.slice(index + 1, index + 4) === '!--') {
-                    ++index; // `<`
-                    ++index; // `!`
-                    ++index; // `-`
-                    ++index; // `-`
-                    skipSingleLineComment(4);
-                } else {
-                    break;
-                }
-            } else {
-                break;
-            }
-        }
-    }
-
-    function scanHexEscape(prefix) {
-        var i, len, ch, code = 0;
-
-        len = (prefix === 'u') ? 4 : 2;
-        for (i = 0; i < len; ++i) {
-            if (index < length && isHexDigit(source[index])) {
-                ch = source[index++];
-                code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
-            } else {
-                return '';
-            }
-        }
-        return String.fromCharCode(code);
-    }
-
-    function getEscapedIdentifier() {
-        var ch, id;
-
-        ch = source.charCodeAt(index++);
-        id = String.fromCharCode(ch);
-
-        // '\u' (U+005C, U+0075) denotes an escaped character.
-        if (ch === 0x5C) {
-            if (source.charCodeAt(index) !== 0x75) {
-                throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-            }
-            ++index;
-            ch = scanHexEscape('u');
-            if (!ch || ch === '\\' || !isIdentifierStart(ch.charCodeAt(0))) {
-                throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-            }
-            id = ch;
-        }
-
-        while (index < length) {
-            ch = source.charCodeAt(index);
-            if (!isIdentifierPart(ch)) {
-                break;
-            }
-            ++index;
-            id += String.fromCharCode(ch);
-
-            // '\u' (U+005C, U+0075) denotes an escaped character.
-            if (ch === 0x5C) {
-                id = id.substr(0, id.length - 1);
-                if (source.charCodeAt(index) !== 0x75) {
-                    throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-                }
-                ++index;
-                ch = scanHexEscape('u');
-                if (!ch || ch === '\\' || !isIdentifierPart(ch.charCodeAt(0))) {
-                    throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-                }
-                id += ch;
-            }
-        }
-
-        return id;
-    }
-
-    function getIdentifier() {
-        var start, ch;
-
-        start = index++;
-        while (index < length) {
-            ch = source.charCodeAt(index);
-            if (ch === 0x5C) {
-                // Blackslash (U+005C) marks Unicode escape sequence.
-                index = start;
-                return getEscapedIdentifier();
-            }
-            if (isIdentifierPart(ch)) {
-                ++index;
-            } else {
-                break;
-            }
-        }
-
-        return source.slice(start, index);
-    }
-
-    function scanIdentifier() {
-        var start, id, type;
-
-        start = index;
-
-        // Backslash (U+005C) starts an escaped character.
-        id = (source.charCodeAt(index) === 0x5C) ? getEscapedIdentifier() : getIdentifier();
-
-        // There is no keyword or literal with only one character.
-        // Thus, it must be an identifier.
-        if (id.length === 1) {
-            type = Token.Identifier;
-        } else if (isKeyword(id)) {
-            type = Token.Keyword;
-        } else if (id === 'null') {
-            type = Token.NullLiteral;
-        } else if (id === 'true' || id === 'false') {
-            type = Token.BooleanLiteral;
-        } else {
-            type = Token.Identifier;
-        }
-
-        return {
-            type: type,
-            value: id,
-            lineNumber: lineNumber,
-            lineStart: lineStart,
-            start: start,
-            end: index
-        };
-    }
-
-
-    // 7.7 Punctuators
-
-    function scanPunctuator() {
-        var start = index,
-            code = source.charCodeAt(index),
-            code2,
-            ch1 = source[index],
-            ch2,
-            ch3,
-            ch4;
-
-        switch (code) {
-
-        // Check for most common single-character punctuators.
-        case 0x2E:  // . dot
-        case 0x28:  // ( open bracket
-        case 0x29:  // ) close bracket
-        case 0x3B:  // ; semicolon
-        case 0x2C:  // , comma
-        case 0x7B:  // { open curly brace
-        case 0x7D:  // } close curly brace
-        case 0x5B:  // [
-        case 0x5D:  // ]
-        case 0x3A:  // :
-        case 0x3F:  // ?
-        case 0x7E:  // ~
-            ++index;
-            if (extra.tokenize) {
-                if (code === 0x28) {
-                    extra.openParenToken = extra.tokens.length;
-                } else if (code === 0x7B) {
-                    extra.openCurlyToken = extra.tokens.length;
-                }
-            }
-            return {
-                type: Token.Punctuator,
-                value: String.fromCharCode(code),
-                lineNumber: lineNumber,
-                lineStart: lineStart,
-                start: start,
-                end: index
-            };
-
-        default:
-            code2 = source.charCodeAt(index + 1);
-
-            // '=' (U+003D) marks an assignment or comparison operator.
-            if (code2 === 0x3D) {
-                switch (code) {
-                case 0x2B:  // +
-                case 0x2D:  // -
-                case 0x2F:  // /
-                case 0x3C:  // <
-                case 0x3E:  // >
-                case 0x5E:  // ^
-                case 0x7C:  // |
-                case 0x25:  // %
-                case 0x26:  // &
-                case 0x2A:  // *
-                    index += 2;
-                    return {
-                        type: Token.Punctuator,
-                        value: String.fromCharCode(code) + String.fromCharCode(code2),
-                        lineNumber: lineNumber,
-                        lineStart: lineStart,
-                        start: start,
-                        end: index
-                    };
-
-                case 0x21: // !
-                case 0x3D: // =
-                    index += 2;
-
-                    // !== and ===
-                    if (source.charCodeAt(index) === 0x3D) {
-                        ++index;
-                    }
-                    return {
-                        type: Token.Punctuator,
-                        value: source.slice(start, index),
-                        lineNumber: lineNumber,
-                        lineStart: lineStart,
-                        start: start,
-                        end: index
-                    };
-                }
-            }
-        }
-
-        // 4-character punctuator: >>>=
-
-        ch4 = source.substr(index, 4);
-
-        if (ch4 === '>>>=') {
-            index += 4;
-            return {
-                type: Token.Punctuator,
-                value: ch4,
-                lineNumber: lineNumber,
-                lineStart: lineStart,
-                start: start,
-                end: index
-            };
-        }
-
-        // 3-character punctuators: === !== >>> <<= >>=
-
-        ch3 = ch4.substr(0, 3);
-
-        if (ch3 === '>>>' || ch3 === '<<=' || ch3 === '>>=') {
-            index += 3;
-            return {
-                type: Token.Punctuator,
-                value: ch3,
-                lineNumber: lineNumber,
-                lineStart: lineStart,
-                start: start,
-                end: index
-            };
-        }
-
-        // Other 2-character punctuators: ++ -- << >> && ||
-        ch2 = ch3.substr(0, 2);
-
-        if ((ch1 === ch2[1] && ('+-<>&|'.indexOf(ch1) >= 0)) || ch2 === '=>') {
-            index += 2;
-            return {
-                type: Token.Punctuator,
-                value: ch2,
-                lineNumber: lineNumber,
-                lineStart: lineStart,
-                start: start,
-                end: index
-            };
-        }
-
-        // 1-character punctuators: < > = ! + - * % & | ^ /
-        if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
-            ++index;
-            return {
-                type: Token.Punctuator,
-                value: ch1,
-                lineNumber: lineNumber,
-                lineStart: lineStart,
-                start: start,
-                end: index
-            };
-        }
-
-        throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-    }
-
-    // 7.8.3 Numeric Literals
-
-    function scanHexLiteral(start) {
-        var number = '';
-
-        while (index < length) {
-            if (!isHexDigit(source[index])) {
-                break;
-            }
-            number += source[index++];
-        }
-
-        if (number.length === 0) {
-            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-        }
-
-        if (isIdentifierStart(source.charCodeAt(index))) {
-            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-        }
-
-        return {
-            type: Token.NumericLiteral,
-            value: parseInt('0x' + number, 16),
-            lineNumber: lineNumber,
-            lineStart: lineStart,
-            start: start,
-            end: index
-        };
-    }
-
-    function scanOctalLiteral(start) {
-        var number = '0' + source[index++];
-        while (index < length) {
-            if (!isOctalDigit(source[index])) {
-                break;
-            }
-            number += source[index++];
-        }
-
-        if (isIdentifierStart(source.charCodeAt(index)) || isDecimalDigit(source.charCodeAt(index))) {
-            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-        }
-
-        return {
-            type: Token.NumericLiteral,
-            value: parseInt(number, 8),
-            octal: true,
-            lineNumber: lineNumber,
-            lineStart: lineStart,
-            start: start,
-            end: index
-        };
-    }
-
-    function isImplicitOctalLiteral() {
-        var i, ch;
-
-        // Implicit octal, unless there is a non-octal digit.
-        // (Annex B.1.1 on Numeric Literals)
-        for (i = index + 1; i < length; ++i) {
-            ch = source[i];
-            if (ch === '8' || ch === '9') {
-                return false;
-            }
-            if (!isOctalDigit(ch)) {
-                return true;
-            }
-        }
-
-        return true;
-    }
-
-    function scanNumericLiteral() {
-        var number, start, ch;
-
-        ch = source[index];
-        assert(isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'),
-            'Numeric literal must start with a decimal digit or a decimal point');
-
-        start = index;
-        number = '';
-        if (ch !== '.') {
-            number = source[index++];
-            ch = source[index];
-
-            // Hex number starts with '0x'.
-            // Octal number starts with '0'.
-            if (number === '0') {
-                if (ch === 'x' || ch === 'X') {
-                    ++index;
-                    return scanHexLiteral(start);
-                }
-                if (isOctalDigit(ch)) {
-                    if (isImplicitOctalLiteral()) {
-                        return scanOctalLiteral(start);
-                    }
-                }
-            }
-
-            while (isDecimalDigit(source.charCodeAt(index))) {
-                number += source[index++];
-            }
-            ch = source[index];
-        }
-
-        if (ch === '.') {
-            number += source[index++];
-            while (isDecimalDigit(source.charCodeAt(index))) {
-                number += source[index++];
-            }
-            ch = source[index];
-        }
-
-        if (ch === 'e' || ch === 'E') {
-            number += source[index++];
-
-            ch = source[index];
-            if (ch === '+' || ch === '-') {
-                number += source[index++];
-            }
-            if (isDecimalDigit(source.charCodeAt(index))) {
-                while (isDecimalDigit(source.charCodeAt(index))) {
-                    number += source[index++];
-                }
-            } else {
-                throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-            }
-        }
-
-        if (isIdentifierStart(source.charCodeAt(index))) {
-            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-        }
-
-        return {
-            type: Token.NumericLiteral,
-            value: parseFloat(number),
-            lineNumber: lineNumber,
-            lineStart: lineStart,
-            start: start,
-            end: index
-        };
-    }
-
-    // 7.8.4 String Literals
-
-    function scanStringLiteral() {
-        var str = '', quote, start, ch, code, unescaped, restore, octal = false, startLineNumber, startLineStart;
-        startLineNumber = lineNumber;
-        startLineStart = lineStart;
-
-        quote = source[index];
-        assert((quote === '\'' || quote === '"'),
-            'String literal must starts with a quote');
-
-        start = index;
-        ++index;
-
-        while (index < length) {
-            ch = source[index++];
-
-            if (ch === quote) {
-                quote = '';
-                break;
-            } else if (ch === '\\') {
-                ch = source[index++];
-                if (!ch || !isLineTerminator(ch.charCodeAt(0))) {
-                    switch (ch) {
-                    case 'u':
-                    case 'x':
-                        restore = index;
-                        unescaped = scanHexEscape(ch);
-                        if (unescaped) {
-                            str += unescaped;
-                        } else {
-                            index = restore;
-                            str += ch;
-                        }
-                        break;
-                    case 'n':
-                        str += '\n';
-                        break;
-                    case 'r':
-                        str += '\r';
-                        break;
-                    case 't':
-                        str += '\t';
-                        break;
-                    case 'b':
-                        str += '\b';
-                        break;
-                    case 'f':
-                        str += '\f';
-                        break;
-                    case 'v':
-                        str += '\x0B';
-                        break;
-
-                    default:
-                        if (isOctalDigit(ch)) {
-                            code = '01234567'.indexOf(ch);
-
-                            // \0 is not octal escape sequence
-                            if (code !== 0) {
-                                octal = true;
-                            }
-
-                            if (index < length && isOctalDigit(source[index])) {
-                                octal = true;
-                                code = code * 8 + '01234567'.indexOf(source[index++]);
-
-                                // 3 digits are only allowed when string starts
-                                // with 0, 1, 2, 3
-                                if ('0123'.indexOf(ch) >= 0 &&
-                                        index < length &&
-                                        isOctalDigit(source[index])) {
-                                    code = code * 8 + '01234567'.indexOf(source[index++]);
-                                }
-                            }
-                            str += String.fromCharCode(code);
-                        } else {
-                            str += ch;
-                        }
-                        break;
-                    }
-                } else {
-                    ++lineNumber;
-                    if (ch ===  '\r' && source[index] === '\n') {
-                        ++index;
-                    }
-                    lineStart = index;
-                }
-            } else if (isLineTerminator(ch.charCodeAt(0))) {
-                break;
-            } else {
-                str += ch;
-            }
-        }
-
-        if (quote !== '') {
-            throwError({}, Messages.UnexpectedToken, 'ILLEGAL');
-        }
-
-        return {
-            type: Token.StringLiteral,
-            value: str,
-            octal: octal,
-            startLineNumber: startLineNumber,
-            startLineStart: startLineStart,
-            lineNumber: lineNumber,
-            lineStart: lineStart,
-            start: start,
-            end: index
-        };
-    }
-
-    function testRegExp(pattern, flags) {
-        var value;
-        try {
-            value = new RegExp(pattern, flags);
-        } catch (e) {
-            throwError({}, Messages.InvalidRegExp);
-        }
-        return value;
-    }
-
-    function scanRegExpBody() {
-        var ch, str, classMarker, terminated, body;
-
-        ch = source[index];
-        assert(ch === '/', 'Regular expression literal must start with a slash');
-        str = source[index++];
-
-        classMarker = false;
-        terminated = false;
-        while (index < length) {
-            ch = source[index++];
-            str += ch;
-            if (ch === '\\') {
-                ch = source[index++];
-                // ECMA-262 7.8.5
-                if (isLineTerminator(ch.charCodeAt(0))) {
-                    throwError({}, Messages.UnterminatedRegExp);
-                }
-                str += ch;
-            } else if (isLineTerminator(ch.charCodeAt(0))) {
-                throwError({}, Messages.UnterminatedRegExp);
-            } else if (classMarker) {
-                if (ch === ']') {
-                    classMarker = false;
-                }
-            } else {
-                if (ch === '/') {
-                    terminated = true;
-                    break;
-                } else if (ch === '[') {
-                    classMarker = true;
-                }
-            }
-        }
-
-        if (!terminated) {
-            throwError({}, Messages.UnterminatedRegExp);
-        }
-
-        // Exclude leading and trailing slash.
-        body = str.substr(1, str.length - 2);
-        return {
-            value: body,
-            literal: str
-        };
-    }
-
-    function scanRegExpFlags() {
-        var ch, str, flags, restore;
-
-        str = '';
-        flags = '';
-        while (index < length) {
-            ch = source[index];
-            if (!isIdentifierPart(ch.charCodeAt(0))) {
-                break;
-            }
-
-            ++index;
-            if (ch === '\\' && index < length) {
-                ch = source[index];
-                if (ch === 'u') {
-                    ++index;
-                    restore = index;
-                    ch = scanHexEscape('u');
-                    if (ch) {
-                        flags += ch;
-                        for (str += '\\u'; restore < index; ++restore) {
-                            str += source[restore];
-                        }
-                    } else {
-                        index = restore;
-                        flags += 'u';
-                        str += '\\u';
-                    }
-                    throwErrorTolerant({}, Messages.UnexpectedToken, 'ILLEGAL');
-                } else {
-                    str += '\\';
-                    throwErrorTolerant({}, Messages.UnexpectedToken, 'ILLEGAL');
-                }
-            } else {
-                flags += ch;
-                str += ch;
-            }
-        }
-
-        return {
-            value: flags,
-            literal: str
-        };
-    }
-
-    function scanRegExp() {
-        var start, body, flags, pattern, value;
-
-        lookahead = null;
-        skipComment();
-        start = index;
-
-        body = scanRegExpBody();
-        flags = scanRegExpFlags();
-        value = testRegExp(body.value, flags.value);
-
-        if (extra.tokenize) {
-            return {
-                type: Token.RegularExpression,
-                value: value,
-                lineNumber: lineNumber,
-                lineStart: lineStart,
-                start: start,
-                end: index
-            };
-        }
-
-        return {
-            literal: body.literal + flags.literal,
-            value: value,
-            start: start,
-            end: index
-        };
-    }
-
-    function collectRegex() {
-        var pos, loc, regex, token;
-
-        skipComment();
-
-        pos = index;
-        loc = {
-            start: {
-                line: lineNumber,
-                column: index - lineStart
-            }
-        };
-
-        regex = scanRegExp();
-        loc.end = {
-            line: lineNumber,
-            column: index - lineStart
-        };
-
-        /* istanbul ignore next */
-        if (!extra.tokenize) {
-            // Pop the previous token, which is likely '/' or '/='
-            if (extra.tokens.length > 0) {
-                token = extra.tokens[extra.tokens.length - 1];
-                if (token.range[0] === pos && token.type === 'Punctuator') {
-                    if (token.value === '/' || token.value === '/=') {
-                        extra.tokens.pop();
-                    }
-                }
-            }
-
-            extra.tokens.push({
-                type: 'RegularExpression',
-                value: regex.literal,
-                range: [pos, index],
-                loc: loc
-            });
-        }
-
-        return regex;
-    }
-
-    function isIdentifierName(token) {
-        return token.type === Token.Identifier ||
-            token.type === Token.Keyword ||
-            token.type === Token.BooleanLiteral ||
-            token.type === Token.NullLiteral;
-    }
-
-    function advanceSlash() {
-        var prevToken,
-            checkToken;
-        // Using the following algorithm:
-        // https://github.com/mozilla/sweet.js/wiki/design
-        prevToken = extra.tokens[extra.tokens.length - 1];
-        if (!prevToken) {
-            // Nothing before that: it cannot be a division.
-            return collectRegex();
-        }
-        if (prevToken.type === 'Punctuator') {
-            if (prevToken.value === ']') {
-                return scanPunctuator();
-            }
-            if (prevToken.value === ')') {
-                checkToken = extra.tokens[extra.openParenToken - 1];
-                if (checkToken &&
-                        checkToken.type === 'Keyword' &&
-                        (checkToken.value === 'if' ||
-                         checkToken.value === 'while' ||
-                         checkToken.value === 'for' ||
-                         checkToken.value === 'with')) {
-                    return collectRegex();
-                }
-                return scanPunctuator();
-            }
-            if (prevToken.value === '}') {
-                // Dividing a function by anything makes little sense,
-                // but we have to check for that.
-                if (extra.tokens[extra.openCurlyToken - 3] &&
-                        extra.tokens[extra.openCurlyToken - 3].type === 'Keyword') {
-                    // Anonymous function.
-                    checkToken = extra.tokens[extra.openCurlyToken - 4];
-                    if (!checkToken) {
-                        return scanPunctuator();
-                    }
-                } else if (extra.tokens[extra.openCurlyToken - 4] &&
-                        extra.tokens[extra.openCurlyToken - 4].type === 'Keyword') {
-                    // Named function.
-                    checkToken = extra.tokens[extra.openCurlyToken - 5];
-                    if (!checkToken) {
-                        return collectRegex();
-                    }
-                } else {
-                    return scanPunctuator();
-                }
-                // checkToken determines whether the function is
-                // a declaration or an expression.
-                if (FnExprTokens.indexOf(checkToken.value) >= 0) {
-                    // It is an expression.
-                    return scanPunctuator();
-                }
-                // It is a declaration.
-                return collectRegex();
-            }
-            return collectRegex();
-        }
-        if (prevToken.type === 'Keyword' && prevToken.value !== 'this') {
-            return collectRegex();
-        }
-        return scanPunctuator();
-    }
-
-    function advance() {
-        var ch;
-
-        skipComment();
-
-        if (index >= length) {
-            return {
-                type: Token.EOF,
-                lineNumber: lineNumber,
-                lineStart: lineStart,
-                start: index,
-                end: index
-            };
-        }
-
-        ch = source.charCodeAt(index);
-
-        if (isIdentifierStart(ch)) {
-            return scanIdentifier();
-        }
-
-        // Very common: ( and ) and ;
-        if (ch === 0x28 || ch === 0x29 || ch === 0x3B) {
-            return scanPunctuator();
-        }
-
-        // String literal starts with single quote (U+0027) or double quote (U+0022).
-        if (ch === 0x27 || ch === 0x22) {
-            return scanStringLiteral();
-        }
-
-
-        // Dot (.) U+002E can also start a floating-point number, hence the need
-        // to check the next character.
-        if (ch === 0x2E) {
-            if (isDecimalDigit(source.charCodeAt(index + 1))) {
-                return scanNumericLiteral();
-            }
-            return scanPunctuator();
-        }
-
-        if (isDecimalDigit(ch)) {
-            return scanNumericLiteral();
-        }
-
-        // Slash (/) U+002F can also start a regex.
-        if (extra.tokenize && ch === 0x2F) {
-            return advanceSlash();
-        }
-
-        return scanPunctuator();
-    }
-
-    function collectToken() {
-        var loc, token, range, value;
-
-        skipComment();
-        loc = {
-            start: {
-                line: lineNumber,
-                column: index - lineStart
-            }
-        };
-
-        token = advance();
-        loc.end = {
-            line: lineNumber,
-            column: index - lineStart
-        };
-
-        if (token.type !== Token.EOF) {
-            value = source.slice(token.start, token.end);
-            extra.tokens.push({
-                type: TokenName[token.type],
-                value: value,
-                range: [token.start, token.end],
-                loc: loc
-            });
-        }
-
-        return token;
-    }
-
-    function lex() {
-        var token;
-
-        token = lookahead;
-        index = token.end;
-        lineNumber = token.lineNumber;
-        lineStart = token.lineStart;
-
-        lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance();
-
-        index = token.end;
-        lineNumber = token.lineNumber;
-        lineStart = token.lineStart;
-
-        return token;
-    }
-
-    function peek() {
-        var pos, line, start;
-
-        pos = index;
-        line = lineNumber;
-        start = lineStart;
-        lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance();
-        index = pos;
-        lineNumber = line;
-        lineStart = start;
-    }
-
-    function Position(line, column) {
-        this.line = line;
-        this.column = column;
-    }
-
-    function SourceLocation(startLine, startColumn, line, column) {
-        this.start = new Position(startLine, startColumn);
-        this.end = new Position(line, column);
-    }
-
-    SyntaxTreeDelegate = {
-
-        name: 'SyntaxTree',
-
-        processComment: function (node) {
-            var lastChild, trailingComments;
-
-            if (node.type === Syntax.Program) {
-                if (node.body.length > 0) {
-                    return;
-                }
-            }
-
-            if (extra.trailingComments.length > 0) {
-                if (extra.trailingComments[0].range[0] >= node.range[1]) {
-                    trailingComments = extra.trailingComments;
-                    extra.trailingComments = [];
-                } else {
-                    extra.trailingComments.length = 0;
-                }
-            } else {
-                if (extra.bottomRightStack.length > 0 &&
-                        extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments &&
-                        extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments[0].range[0] >= node.range[1]) {
-                    trailingComments = extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments;
-                    delete extra.bottomRightStack[extra.bottomRightStack.length - 1].trailingComments;
-                }
-            }
-
-            // Eating the stack.
-            while (extra.bottomRightStack.length > 0 && extra.bottomRightStack[extra.bottomRightStack.length - 1].range[0] >= node.range[0]) {
-                lastChild = extra.bottomRightStack.pop();
-            }
-
-            if (lastChild) {
-                if (lastChild.leadingComments && lastChild.leadingComments[lastChild.leadingComments.length - 1].range[1] <= node.range[0]) {
-                    node.leadingComments = lastChild.leadingComments;
-                    delete lastChild.leadingComments;
-                }
-            } else if (extra.leadingComments.length > 0 && extra.leadingComments[extra.leadingComments.length - 1].range[1] <= node.range[0]) {
-                node.leadingComments = extra.leadingComments;
-                extra.leadingComments = [];
-            }
-
-
-            if (trailingComments) {
-                node.trailingComments = trailingComments;
-            }
-
-            extra.bottomRightStack.push(node);
-        },
-
-        markEnd: function (node, startToken) {
-            if (extra.range) {
-                node.range = [startToken.start, index];
-            }
-            if (extra.loc) {
-                node.loc = new SourceLocation(
-                    startToken.startLineNumber === undefined ?  startToken.lineNumber : startToken.startLineNumber,
-                    startToken.start - (startToken.startLineStart === undefined ?  startToken.lineStart : startToken.startLineStart),
-                    lineNumber,
-                    index - lineStart
-                );
-                this.postProcess(node);
-            }
-
-            if (extra.attachComment) {
-                this.processComment(node);
-            }
-            return node;
-        },
-
-        postProcess: function (node) {
-            if (extra.source) {
-                node.loc.source = extra.source;
-            }
-            return node;
-        },
-
-        createArrayExpression: function (elements) {
-            return {
-                type: Syntax.ArrayExpression,
-                elements: elements
-            };
-        },
-
-        createAssignmentExpression: function (operator, left, right) {
-            return {
-                type: Syntax.AssignmentExpression,
-                operator: operator,
-                left: left,
-                right: right
-            };
-        },
-
-        createBinaryExpression: function (operator, left, right) {
-            var type = (operator === '||' || operator === '&&') ? Syntax.LogicalExpression :
-                        Syntax.BinaryExpression;
-            return {
-                type: type,
-                operator: operator,
-                left: left,
-                right: right
-            };
-        },
-
-        createBlockStatement: function (body) {
-            return {
-                type: Syntax.BlockStatement,
-                body: body
-            };
-        },
-
-        createBreakStatement: function (label) {
-            return {
-                type: Syntax.BreakStatement,
-                label: label
-            };
-        },
-
-        createCallExpression: function (callee, args) {
-            return {
-                type: Syntax.CallExpression,
-                callee: callee,
-                'arguments': args
-            };
-        },
-
-        createCatchClause: function (param, body) {
-            return {
-                type: Syntax.CatchClause,
-                param: param,
-                body: body
-            };
-        },
-
-        createConditionalExpression: function (test, consequent, alternate) {
-            return {
-                type: Syntax.ConditionalExpression,
-                test: test,
-                consequent: consequent,
-                alternate: alternate
-            };
-        },
-
-        createContinueStatement: function (label) {
-            return {
-                type: Syntax.ContinueStatement,
-                label: label
-            };
-        },
-
-        createDebuggerStatement: function () {
-            return {
-                type: Syntax.DebuggerStatement
-            };
-        },
-
-        createDoWhileStatement: function (body, test) {
-            return {
-                type: Syntax.DoWhileStatement,
-                body: body,
-                test: test
-            };
-        },
-
-        createEmptyStatement: function () {
-            return {
-                type: Syntax.EmptyStatement
-            };
-        },
-
-        createExpressionStatement: function (expression) {
-            return {
-                type: Syntax.ExpressionStatement,
-                expression: expression
-            };
-        },
-
-        createForStatement: function (init, test, update, body) {
-            return {
-                type: Syntax.ForStatement,
-                init: init,
-                test: test,
-                update: update,
-                body: body
-            };
-        },
-
-        createForInStatement: function (left, right, body) {
-            return {
-                type: Syntax.ForInStatement,
-                left: left,
-                right: right,
-                body: body,
-                each: false
-            };
-        },
-
-        createFunctionDeclaration: function (id, params, defaults, body) {
-            return {
-                type: Syntax.FunctionDeclaration,
-                id: id,
-                params: params,
-                defaults: defaults,
-                body: body,
-                rest: null,
-                generator: false,
-                expression: false
-            };
-        },
-
-        createFunctionExpression: function (id, params, defaults, body) {
-            return {
-                type: Syntax.FunctionExpression,
-                id: id,
-                params: params,
-                defaults: defaults,
-                body: body,
-                rest: null,
-                generator: false,
-                expression: false
-            };
-        },
-
-        createIdentifier: function (name) {
-            return {
-                type: Syntax.Identifier,
-                name: name
-            };
-        },
-
-        createIfStatement: function (test, consequent, alternate) {
-            return {
-                type: Syntax.IfStatement,
-                test: test,
-                consequent: consequent,
-                alternate: alternate
-            };
-        },
-
-        createLabeledStatement: function (label, body) {
-            return {
-                type: Syntax.LabeledStatement,
-                label: label,
-                body: body
-            };
-        },
-
-        createLiteral: function (token) {
-            return {
-                type: Syntax.Literal,
-                value: token.value,
-                raw: source.slice(token.start, token.end)
-            };
-        },
-
-        createMemberExpression: function (accessor, object, property) {
-            return {
-                type: Syntax.MemberExpression,
-                computed: accessor === '[',
-                object: object,
-                property: property
-            };
-        },
-
-        createNewExpression: function (callee, args) {
-            return {
-                type: Syntax.NewExpression,
-                callee: callee,
-                'arguments': args
-            };
-        },
-
-        createObjectExpression: function (properties) {
-            return {
-                type: Syntax.ObjectExpression,
-                properties: properties
-            };
-        },
-
-        createPostfixExpression: function (operator, argument) {
-            return {
-                type: Syntax.UpdateExpression,
-                operator: operator,
-                argument: argument,
-                prefix: false
-            };
-        },
-
-        createProgram: function (body) {
-            return {
-                type: Syntax.Program,
-                body: body
-            };
-        },
-
-        createProperty: function (kind, key, value) {
-            return {
-                type: Syntax.Property,
-                key: key,
-                value: value,
-                kind: kind
-            };
-        },
-
-        createReturnStatement: function (argument) {
-            return {
-                type: Syntax.ReturnStatement,
-                argument: argument
-            };
-        },
-
-        createSequenceExpression: function (expressions) {
-            return {
-                type: Syntax.SequenceExpression,
-                expressions: expressions
-            };
-        },
-
-        createSwitchCase: function (test, consequent) {
-            return {
-                type: Syntax.SwitchCase,
-                test: test,
-                consequent: consequent
-            };
-        },
-
-        createSwitchStatement: function (discriminant, cases) {
-            return {
-                type: Syntax.SwitchStatement,
-                discriminant: discriminant,
-                cases: cases
-            };
-        },
-
-        createThisExpression: function () {
-            return {
-                type: Syntax.ThisExpression
-            };
-        },
-
-        createThrowStatement: function (argument) {
-            return {
-                type: Syntax.ThrowStatement,
-                argument: argument
-            };
-        },
-
-        createTryStatement: function (block, guardedHandlers, handlers, finalizer) {
-            return {
-                type: Syntax.TryStatement,
-                block: block,
-                guardedHandlers: guardedHandlers,
-                handlers: handlers,
-                finalizer: finalizer
-            };
-        },
-
-        createUnaryExpression: function (operator, argument) {
-            if (operator === '++' || operator === '--') {
-                return {
-                    type: Syntax.UpdateExpression,
-                    operator: operator,
-                    argument: argument,
-                    prefix: true
-                };
-            }
-            return {
-                type: Syntax.UnaryExpression,
-                operator: operator,
-                argument: argument,
-                prefix: true
-            };
-        },
-
-        createVariableDeclaration: function (declarations, kind) {
-            return {
-                type: Syntax.VariableDeclaration,
-                declarations: declarations,
-                kind: kind
-            };
-        },
-
-        createVariableDeclarator: function (id, init) {
-            return {
-                type: Syntax.VariableDeclarator,
-                id: id,
-                init: init
-            };
-        },
-
-        createWhileStatement: function (test, body) {
-            return {
-                type: Syntax.WhileStatement,
-                test: test,
-                body: body
-            };
-        },
-
-        createWithStatement: function (object, body) {
-            return {
-                type: Syntax.WithStatement,
-                object: object,
-                body: body
-            };
-        }
-    };
-
-    // Return true if there is a line terminator before the next token.
-
-    function peekLineTerminator() {
-        var pos, line, start, found;
-
-        pos = index;
-        line = lineNumber;
-        start = lineStart;
-        skipComment();
-        found = lineNumber !== line;
-        index = pos;
-        lineNumber = line;
-        lineStart = start;
-
-        return found;
-    }
-
-    // Throw an exception
-
-    function throwError(token, messageFormat) {
-        var error,
-            args = Array.prototype.slice.call(arguments, 2),
-            msg = messageFormat.replace(
-                /%(\d)/g,
-                function (whole, index) {
-                    assert(index < args.length, 'Message reference must be in range');
-                    return args[index];
-                }
-            );
-
-        if (typeof token.lineNumber === 'number') {
-            error = new Error('Line ' + token.lineNumber + ': ' + msg);
-            error.index = token.start;
-            error.lineNumber = token.lineNumber;
-            error.column = token.start - lineStart + 1;
-        } else {
-            error = new Error('Line ' + lineNumber + ': ' + msg);
-            error.index = index;
-            error.lineNumber = lineNumber;
-            error.column = index - lineStart + 1;
-        }
-
-        error.description = msg;
-        throw error;
-    }
-
-    function throwErrorTolerant() {
-        try {
-            throwError.apply(null, arguments);
-        } catch (e) {
-            if (extra.errors) {
-                extra.errors.push(e);
-            } else {
-                throw e;
-            }
-        }
-    }
-
-
-    // Throw an exception because of the token.
-
-    function throwUnexpected(token) {
-        if (token.type === Token.EOF) {
-            throwError(token, Messages.UnexpectedEOS);
-        }
-
-        if (token.type === Token.NumericLiteral) {
-            throwError(token, Messages.UnexpectedNumber);
-        }
-
-        if (token.type === Token.StringLiteral) {
-            throwError(token, Messages.UnexpectedString);
-        }
-
-        if (token.type === Token.Identifier) {
-            throwError(token, Messages.UnexpectedIdentifier);
-        }
-
-        if (token.type === Token.Keyword) {
-            if (isFutureReservedWord(token.value)) {
-                throwError(token, Messages.UnexpectedReserved);
-            } else if (strict && isStrictModeReservedWord(token.value)) {
-                throwErrorTolerant(token, Messages.StrictReservedWord);
-                return;
-            }
-            throwError(token, Messages.UnexpectedToken, token.value);
-        }
-
-        // BooleanLiteral, NullLiteral, or Punctuator.
-        throwError(token, Messages.UnexpectedToken, token.value);
-    }
-
-    // Expect the next token to match the specified punctuator.
-    // If not, an exception will be thrown.
-
-    function expect(value) {
-        var token = lex();
-        if (token.type !== Token.Punctuator || token.value !== value) {
-            throwUnexpected(token);
-        }
-    }
-
-    // Expect the next token to match the specified keyword.
-    // If not, an exception will be thrown.
-
-    function expectKeyword(keyword) {
-        var token = lex();
-        if (token.type !== Token.Keyword || token.value !== keyword) {
-            throwUnexpected(token);
-        }
-    }
-
-    // Return true if the next token matches the specified punctuator.
-
-    function match(value) {
-        return lookahead.type === Token.Punctuator && lookahead.value === value;
-    }
-
-    // Return true if the next token matches the specified keyword
-
-    function matchKeyword(keyword) {
-        return lookahead.type === Token.Keyword && lookahead.value === keyword;
-    }
-
-    // Return true if the next token is an assignment operator
-
-    function matchAssign() {
-        var op;
-
-        if (lookahead.type !== Token.Punctuator) {
-            return false;
-        }
-        op = lookahead.value;
-        return op === '=' ||
-            op === '*=' ||
-            op === '/=' ||
-            op === '%=' ||
-            op === '+=' ||
-            op === '-=' ||
-            op === '<<=' ||
-            op === '>>=' ||
-            op === '>>>=' ||
-            op === '&=' ||
-            op === '^=' ||
-            op === '|=';
-    }
-
-    function consumeSemicolon() {
-        var line, oldIndex = index, oldLineNumber = lineNumber,
-            oldLineStart = lineStart, oldLookahead = lookahead;
-
-        // Catch the very common case first: immediately a semicolon (U+003B).
-        if (source.charCodeAt(index) === 0x3B || match(';')) {
-            lex();
-            return;
-        }
-
-        line = lineNumber;
-        skipComment();
-        if (lineNumber !== line) {
-            index = oldIndex;
-            lineNumber = oldLineNumber;
-            lineStart = oldLineStart;
-            lookahead = oldLookahead;
-            return;
-        }
-
-        if (lookahead.type !== Token.EOF && !match('}')) {
-            throwUnexpected(lookahead);
-        }
-    }
-
-    // Return true if provided expression is LeftHandSideExpression
-
-    function isLeftHandSide(expr) {
-        return expr.type === Syntax.Identifier || expr.type === Syntax.MemberExpression;
-    }
-
-    // 11.1.4 Array Initialiser
-
-    function parseArrayInitialiser() {
-        var elements = [], startToken;
-
-        startToken = lookahead;
-        expect('[');
-
-        while (!match(']')) {
-            if (match(',')) {
-                lex();
-                elements.push(null);
-            } else {
-                elements.push(parseAssignmentExpression());
-
-                if (!match(']')) {
-                    expect(',');
-                }
-            }
-        }
-
-        lex();
-
-        return delegate.markEnd(delegate.createArrayExpression(elements), startToken);
-    }
-
-    // 11.1.5 Object Initialiser
-
-    function parsePropertyFunction(param, first) {
-        var previousStrict, body, startToken;
-
-        previousStrict = strict;
-        startToken = lookahead;
-        body = parseFunctionSourceElements();
-        if (first && strict && isRestrictedWord(param[0].name)) {
-            throwErrorTolerant(first, Messages.StrictParamName);
-        }
-        strict = previousStrict;
-        return delegate.markEnd(delegate.createFunctionExpression(null, param, [], body), startToken);
-    }
-
-    function parseObjectPropertyKey() {
-        var token, startToken;
-
-        startToken = lookahead;
-        token = lex();
-
-        // Note: This function is called only from parseObjectProperty(), where
-        // EOF and Punctuator tokens are already filtered out.
-
-        if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) {
-            if (strict && token.octal) {
-                throwErrorTolerant(token, Messages.StrictOctalLiteral);
-            }
-            return delegate.markEnd(delegate.createLiteral(token), startToken);
-        }
-
-        return delegate.markEnd(delegate.createIdentifier(token.value), startToken);
-    }
-
-    function parseObjectProperty() {
-        var token, key, id, value, param, startToken;
-
-        token = lookahead;
-        startToken = lookahead;
-
-        if (token.type === Token.Identifier) {
-
-            id = parseObjectPropertyKey();
-
-            // Property Assignment: Getter and Setter.
-
-            if (token.value === 'get' && !match(':')) {
-                key = parseObjectPropertyKey();
-                expect('(');
-                expect(')');
-                value = parsePropertyFunction([]);
-                return delegate.markEnd(delegate.createProperty('get', key, value), startToken);
-            }
-            if (token.value === 'set' && !match(':')) {
-                key = parseObjectPropertyKey();
-                expect('(');
-                token = lookahead;
-                if (token.type !== Token.Identifier) {
-                    expect(')');
-                    throwErrorTolerant(token, Messages.UnexpectedToken, token.value);
-                    value = parsePropertyFunction([]);
-                } else {
-                    param = [ parseVariableIdentifier() ];
-                    expect(')');
-                    value = parsePropertyFunction(param, token);
-                }
-                return delegate.markEnd(delegate.createProperty('set', key, value), startToken);
-            }
-            expect(':');
-            value = parseAssignmentExpression();
-            return delegate.markEnd(delegate.createProperty('init', id, value), startToken);
-        }
-        if (token.type === Token.EOF || token.type === Token.Punctuator) {
-            throwUnexpected(token);
-        } else {
-            key = parseObjectPropertyKey();
-            expect(':');
-            value = parseAssignmentExpression();
-            return delegate.markEnd(delegate.createProperty('init', key, value), startToken);
-        }
-    }
-
-    function parseObjectInitialiser() {
-        var properties = [], property, name, key, kind, map = {}, toString = String, startToken;
-
-        startToken = lookahead;
-
-        expect('{');
-
-        while (!match('}')) {
-            property = parseObjectProperty();
-
-            if (property.key.type === Syntax.Identifier) {
-                name = property.key.name;
-            } else {
-                name = toString(property.key.value);
-            }
-            kind = (property.kind === 'init') ? PropertyKind.Data : (property.kind === 'get') ? PropertyKind.Get : PropertyKind.Set;
-
-            key = '$' + name;
-            if (Object.prototype.hasOwnProperty.call(map, key)) {
-                if (map[key] === PropertyKind.Data) {
-                    if (strict && kind === PropertyKind.Data) {
-                        throwErrorTolerant({}, Messages.StrictDuplicateProperty);
-                    } else if (kind !== PropertyKind.Data) {
-                        throwErrorTolerant({}, Messages.AccessorDataProperty);
-                    }
-                } else {
-                    if (kind === PropertyKind.Data) {
-                        throwErrorTolerant({}, Messages.AccessorDataProperty);
-                    } else if (map[key] & kind) {
-                        throwErrorTolerant({}, Messages.AccessorGetSet);
-                    }
-                }
-                map[key] |= kind;
-            } else {
-                map[key] = kind;
-            }
-
-            properties.push(property);
-
-            if (!match('}')) {
-                expect(',');
-            }
-        }
-
-        expect('}');
-
-        return delegate.markEnd(delegate.createObjectExpression(properties), startToken);
-    }
-
-    // 11.1.6 The Grouping Operator
-
-    function parseGroupExpression() {
-        var expr;
-
-        expect('(');
-
-        expr = parseExpression();
-
-        expect(')');
-
-        return expr;
-    }
-
-
-    // 11.1 Primary Expressions
-
-    function parsePrimaryExpression() {
-        var type, token, expr, startToken;
-
-        if (match('(')) {
-            return parseGroupExpression();
-        }
-
-        if (match('[')) {
-            return parseArrayInitialiser();
-        }
-
-        if (match('{')) {
-            return parseObjectInitialiser();
-        }
-
-        type = lookahead.type;
-        startToken = lookahead;
-
-        if (type === Token.Identifier) {
-            expr =  delegate.createIdentifier(lex().value);
-        } else if (type === Token.StringLiteral || type === Token.NumericLiteral) {
-            if (strict && lookahead.octal) {
-                throwErrorTolerant(lookahead, Messages.StrictOctalLiteral);
-            }
-            expr = delegate.createLiteral(lex());
-        } else if (type === Token.Keyword) {
-            if (matchKeyword('function')) {
-                return parseFunctionExpression();
-            }
-            if (matchKeyword('this')) {
-                lex();
-                expr = delegate.createThisExpression();
-            } else {
-                throwUnexpected(lex());
-            }
-        } else if (type === Token.BooleanLiteral) {
-            token = lex();
-            token.value = (token.value === 'true');
-            expr = delegate.createLiteral(token);
-        } else if (type === Token.NullLiteral) {
-            token = lex();
-            token.value = null;
-            expr = delegate.createLiteral(token);
-        } else if (match('/') || match('/=')) {
-            if (typeof extra.tokens !== 'undefined') {
-                expr = delegate.createLiteral(collectRegex());
-            } else {
-                expr = delegate.createLiteral(scanRegExp());
-            }
-            peek();
-        } else {
-            throwUnexpected(lex());
-        }
-
-        return delegate.markEnd(expr, startToken);
-    }
-
-    // 11.2 Left-Hand-Side Expressions
-
-    function parseArguments() {
-        var args = [];
-
-        expect('(');
-
-        if (!match(')')) {
-            while (index < length) {
-                args.push(parseAssignmentExpression());
-                if (match(')')) {
-                    break;
-                }
-                expect(',');
-            }
-        }
-
-        expect(')');
-
-        return args;
-    }
-
-    function parseNonComputedProperty() {
-        var token, startToken;
-
-        startToken = lookahead;
-        token = lex();
-
-        if (!isIdentifierName(token)) {
-            throwUnexpected(token);
-        }
-
-        return delegate.markEnd(delegate.createIdentifier(token.value), startToken);
-    }
-
-    function parseNonComputedMember() {
-        expect('.');
-
-        return parseNonComputedProperty();
-    }
-
-    function parseComputedMember() {
-        var expr;
-
-        expect('[');
-
-        expr = parseExpression();
-
-        expect(']');
-
-        return expr;
-    }
-
-    function parseNewExpression() {
-        var callee, args, startToken;
-
-        startToken = lookahead;
-        expectKeyword('new');
-        callee = parseLeftHandSideExpression();
-        args = match('(') ? parseArguments() : [];
-
-        return delegate.markEnd(delegate.createNewExpression(callee, args), startToken);
-    }
-
-    function parseLeftHandSideExpressionAllowCall() {
-        var expr, args, property, startToken, previousAllowIn = state.allowIn;
-
-        startToken = lookahead;
-        state.allowIn = true;
-        expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
-
-        for (;;) {
-            if (match('.')) {
-                property = parseNonComputedMember();
-                expr = delegate.createMemberExpression('.', expr, property);
-            } else if (match('(')) {
-                args = parseArguments();
-                expr = delegate.createCallExpression(expr, args);
-            } else if (match('[')) {
-                property = parseComputedMember();
-                expr = delegate.createMemberExpression('[', expr, property);
-            } else {
-                break;
-            }
-            delegate.markEnd(expr, startToken);
-        }
-        state.allowIn = previousAllowIn;
-
-        return expr;
-    }
-
-    function parseLeftHandSideExpression() {
-        var expr, property, startToken;
-        assert(state.allowIn, 'callee of new expression always allow in keyword.');
-
-        startToken = lookahead;
-
-        expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
-
-        while (match('.') || match('[')) {
-            if (match('[')) {
-                property = parseComputedMember();
-                expr = delegate.createMemberExpression('[', expr, property);
-            } else {
-                property = parseNonComputedMember();
-                expr = delegate.createMemberExpression('.', expr, property);
-            }
-            delegate.markEnd(expr, startToken);
-        }
-        return expr;
-    }
-
-    // 11.3 Postfix Expressions
-
-    function parsePostfixExpression() {
-        var expr, token, startToken = lookahead;
-
-        expr = parseLeftHandSideExpressionAllowCall();
-
-        if (lookahead.type === Token.Punctuator) {
-            if ((match('++') || match('--')) && !peekLineTerminator()) {
-                // 11.3.1, 11.3.2
-                if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
-                    throwErrorTolerant({}, Messages.StrictLHSPostfix);
-                }
-
-                if (!isLeftHandSide(expr)) {
-                    throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
-                }
-
-                token = lex();
-                expr = delegate.markEnd(delegate.createPostfixExpression(token.value, expr), startToken);
-            }
-        }
-
-        return expr;
-    }
-
-    // 11.4 Unary Operators
-
-    function parseUnaryExpression() {
-        var token, expr, startToken;
-
-        if (lookahead.type !== Token.Punctuator && lookahead.type !== Token.Keyword) {
-            expr = parsePostfixExpression();
-        } else if (match('++') || match('--')) {
-            startToken = lookahead;
-            token = lex();
-            expr = parseUnaryExpression();
-            // 11.4.4, 11.4.5
-            if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
-                throwErrorTolerant({}, Messages.StrictLHSPrefix);
-            }
-
-            if (!isLeftHandSide(expr)) {
-                throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
-            }
-
-            expr = delegate.createUnaryExpression(token.value, expr);
-            expr = delegate.markEnd(expr, startToken);
-        } else if (match('+') || match('-') || match('~') || match('!')) {
-            startToken = lookahead;
-            token = lex();
-            expr = parseUnaryExpression();
-            expr = delegate.createUnaryExpression(token.value, expr);
-            expr = delegate.markEnd(expr, startToken);
-        } else if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
-            startToken = lookahead;
-            token = lex();
-            expr = parseUnaryExpression();
-            expr = delegate.createUnaryExpression(token.value, expr);
-            expr = delegate.markEnd(expr, startToken);
-            if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) {
-                throwErrorTolerant({}, Messages.StrictDelete);
-            }
-        } else {
-            expr = parsePostfixExpression();
-        }
-
-        return expr;
-    }
-
-    function binaryPrecedence(token, allowIn) {
-        var prec = 0;
-
-        if (token.type !== Token.Punctuator && token.type !== Token.Keyword) {
-            return 0;
-        }
-
-        switch (token.value) {
-        case '||':
-            prec = 1;
-            break;
-
-        case '&&':
-            prec = 2;
-            break;
-
-        case '|':
-            prec = 3;
-            break;
-
-        case '^':
-            prec = 4;
-            break;
-
-        case '&':
-            prec = 5;
-            break;
-
-        case '==':
-        case '!=':
-        case '===':
-        case '!==':
-            prec = 6;
-            break;
-
-        case '<':
-        case '>':
-        case '<=':
-        case '>=':
-        case 'instanceof':
-            prec = 7;
-            break;
-
-        case 'in':
-            prec = allowIn ? 7 : 0;
-            break;
-
-        case '<<':
-        case '>>':
-        case '>>>':
-            prec = 8;
-            break;
-
-        case '+':
-        case '-':
-            prec = 9;
-            break;
-
-        case '*':
-        case '/':
-        case '%':
-            prec = 11;
-            break;
-
-        default:
-            break;
-        }
-
-        return prec;
-    }
-
-    // 11.5 Multiplicative Operators
-    // 11.6 Additive Operators
-    // 11.7 Bitwise Shift Operators
-    // 11.8 Relational Operators
-    // 11.9 Equality Operators
-    // 11.10 Binary Bitwise Operators
-    // 11.11 Binary Logical Operators
-
-    function parseBinaryExpression() {
-        var marker, markers, expr, token, prec, stack, right, operator, left, i;
-
-        marker = lookahead;
-        left = parseUnaryExpression();
-
-        token = lookahead;
-        prec = binaryPrecedence(token, state.allowIn);
-        if (prec === 0) {
-            return left;
-        }
-        token.prec = prec;
-        lex();
-
-        markers = [marker, lookahead];
-        right = parseUnaryExpression();
-
-        stack = [left, token, right];
-
-        while ((prec = binaryPrecedence(lookahead, state.allowIn)) > 0) {
-
-            // Reduce: make a binary expression from the three topmost entries.
-            while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {
-                right = stack.pop();
-                operator = stack.pop().value;
-                left = stack.pop();
-                expr = delegate.createBinaryExpression(operator, left, right);
-                markers.pop();
-                marker = markers[markers.length - 1];
-                delegate.markEnd(expr, marker);
-                stack.push(expr);
-            }
-
-            // Shift.
-            token = lex();
-            token.prec = prec;
-            stack.push(token);
-            markers.push(lookahead);
-            expr = parseUnaryExpression();
-            stack.push(expr);
-        }
-
-        // Final reduce to clean-up the stack.
-        i = stack.length - 1;
-        expr = stack[i];
-        markers.pop();
-        while (i > 1) {
-            expr = delegate.createBinaryExpression(stack[i - 1].value, stack[i - 2], expr);
-            i -= 2;
-            marker = markers.pop();
-            delegate.markEnd(expr, marker);
-        }
-
-        return expr;
-    }
-
-
-    // 11.12 Conditional Operator
-
-    function parseConditionalExpression() {
-        var expr, previousAllowIn, consequent, alternate, startToken;
-
-        startToken = lookahead;
-
-        expr = parseBinaryExpression();
-
-        if (match('?')) {
-            lex();
-            previousAllowIn = state.allowIn;
-            state.allowIn = true;
-            consequent = parseAssignmentExpression();
-            state.allowIn = previousAllowIn;
-            expect(':');
-            alternate = parseAssignmentExpression();
-
-            expr = delegate.createConditionalExpression(expr, consequent, alternate);
-            delegate.markEnd(expr, startToken);
-        }
-
-        return expr;
-    }
-
-    // 11.13 Assignment Operators
-
-    function parseAssignmentExpression() {
-        var token, left, right, node, startToken;
-
-        token = lookahead;
-        startToken = lookahead;
-
-        node = left = parseConditionalExpression();
-
-        if (matchAssign()) {
-            // LeftHandSideExpression
-            if (!isLeftHandSide(left)) {
-                throwErrorTolerant({}, Messages.InvalidLHSInAssignment);
-            }
-
-            // 11.13.1
-            if (strict && left.type === Syntax.Identifier && isRestrictedWord(left.name)) {
-                throwErrorTolerant(token, Messages.StrictLHSAssignment);
-            }
-
-            token = lex();
-            right = parseAssignmentExpression();
-            node = delegate.markEnd(delegate.createAssignmentExpression(token.value, left, right), startToken);
-        }
-
-        return node;
-    }
-
-    // 11.14 Comma Operator
-
-    function parseExpression() {
-        var expr, startToken = lookahead;
-
-        expr = parseAssignmentExpression();
-
-        if (match(',')) {
-            expr = delegate.createSequenceExpression([ expr ]);
-
-            while (index < length) {
-                if (!match(',')) {
-                    break;
-                }
-                lex();
-                expr.expressions.push(parseAssignmentExpression());
-            }
-
-            delegate.markEnd(expr, startToken);
-        }
-
-        return expr;
-    }
-
-    // 12.1 Block
-
-    function parseStatementList() {
-        var list = [],
-            statement;
-
-        while (index < length) {
-            if (match('}')) {
-                break;
-            }
-            statement = parseSourceElement();
-            if (typeof statement === 'undefined') {
-                break;
-            }
-            list.push(statement);
-        }
-
-        return list;
-    }
-
-    function parseBlock() {
-        var block, startToken;
-
-        startToken = lookahead;
-        expect('{');
-
-        block = parseStatementList();
-
-        expect('}');
-
-        return delegate.markEnd(delegate.createBlockStatement(block), startToken);
-    }
-
-    // 12.2 Variable Statement
-
-    function parseVariableIdentifier() {
-        var token, startToken;
-
-        startToken = lookahead;
-        token = lex();
-
-        if (token.type !== Token.Identifier) {
-            throwUnexpected(token);
-        }
-
-        return delegate.markEnd(delegate.createIdentifier(token.value), startToken);
-    }
-
-    function parseVariableDeclaration(kind) {
-        var init = null, id, startToken;
-
-        startToken = lookahead;
-        id = parseVariableIdentifier();
-
-        // 12.2.1
-        if (strict && isRestrictedWord(id.name)) {
-            throwErrorTolerant({}, Messages.StrictVarName);
-        }
-
-        if (kind === 'const') {
-            expect('=');
-            init = parseAssignmentExpression();
-        } else if (match('=')) {
-            lex();
-            init = parseAssignmentExpression();
-        }
-
-        return delegate.markEnd(delegate.createVariableDeclarator(id, init), startToken);
-    }
-
-    function parseVariableDeclarationList(kind) {
-        var list = [];
-
-        do {
-            list.push(parseVariableDeclaration(kind));
-            if (!match(',')) {
-                break;
-            }
-            lex();
-        } while (index < length);
-
-        return list;
-    }
-
-    function parseVariableStatement() {
-        var declarations;
-
-        expectKeyword('var');
-
-        declarations = parseVariableDeclarationList();
-
-        consumeSemicolon();
-
-        return delegate.createVariableDeclaration(declarations, 'var');
-    }
-
-    // kind may be `const` or `let`
-    // Both are experimental and not in the specification yet.
-    // see http://wiki.ecmascript.org/doku.php?id=harmony:const
-    // and http://wiki.ecmascript.org/doku.php?id=harmony:let
-    function parseConstLetDeclaration(kind) {
-        var declarations, startToken;
-
-        startToken = lookahead;
-
-        expectKeyword(kind);
-
-        declarations = parseVariableDeclarationList(kind);
-
-        consumeSemicolon();
-
-        return delegate.markEnd(delegate.createVariableDeclaration(declarations, kind), startToken);
-    }
-
-    // 12.3 Empty Statement
-
-    function parseEmptyStatement() {
-        expect(';');
-        return delegate.createEmptyStatement();
-    }
-
-    // 12.4 Expression Statement
-
-    function parseExpressionStatement() {
-        var expr = parseExpression();
-        consumeSemicolon();
-        return delegate.createExpressionStatement(expr);
-    }
-
-    // 12.5 If statement
-
-    function parseIfStatement() {
-        var test, consequent, alternate;
-
-        expectKeyword('if');
-
-        expect('(');
-
-        test = parseExpression();
-
-        expect(')');
-
-        consequent = parseStatement();
-
-        if (matchKeyword('else')) {
-            lex();
-            alternate = parseStatement();
-        } else {
-            alternate = null;
-        }
-
-        return delegate.createIfStatement(test, consequent, alternate);
-    }
-
-    // 12.6 Iteration Statements
-
-    function parseDoWhileStatement() {
-        var body, test, oldInIteration;
-
-        expectKeyword('do');
-
-        oldInIteration = state.inIteration;
-        state.inIteration = true;
-
-        body = parseStatement();
-
-        state.inIteration = oldInIteration;
-
-        expectKeyword('while');
-
-        expect('(');
-
-        test = parseExpression();
-
-        expect(')');
-
-        if (match(';')) {
-            lex();
-        }
-
-        return delegate.createDoWhileStatement(body, test);
-    }
-
-    function parseWhileStatement() {
-        var test, body, oldInIteration;
-
-        expectKeyword('while');
-
-        expect('(');
-
-        test = parseExpression();
-
-        expect(')');
-
-        oldInIteration = state.inIteration;
-        state.inIteration = true;
-
-        body = parseStatement();
-
-        state.inIteration = oldInIteration;
-
-        return delegate.createWhileStatement(test, body);
-    }
-
-    function parseForVariableDeclaration() {
-        var token, declarations, startToken;
-
-        startToken = lookahead;
-        token = lex();
-        declarations = parseVariableDeclarationList();
-
-        return delegate.markEnd(delegate.createVariableDeclaration(declarations, token.value), startToken);
-    }
-
-    function parseForStatement() {
-        var init, test, update, left, right, body, oldInIteration, previousAllowIn = state.allowIn;
-
-        init = test = update = null;
-
-        expectKeyword('for');
-
-        expect('(');
-
-        if (match(';')) {
-            lex();
-        } else {
-            if (matchKeyword('var') || matchKeyword('let')) {
-                state.allowIn = false;
-                init = parseForVariableDeclaration();
-                state.allowIn = previousAllowIn;
-
-                if (init.declarations.length === 1 && matchKeyword('in')) {
-                    lex();
-                    left = init;
-                    right = parseExpression();
-                    init = null;
-                }
-            } else {
-                state.allowIn = false;
-                init = parseExpression();
-                state.allowIn = previousAllowIn;
-
-                if (matchKeyword('in')) {
-                    // LeftHandSideExpression
-                    if (!isLeftHandSide(init)) {
-                        throwErrorTolerant({}, Messages.InvalidLHSInForIn);
-                    }
-
-                    lex();
-                    left = init;
-                    right = parseExpression();
-                    init = null;
-                }
-            }
-
-            if (typeof left === 'undefined') {
-                expect(';');
-            }
-        }
-
-        if (typeof left === 'undefined') {
-
-            if (!match(';')) {
-                test = parseExpression();
-            }
-            expect(';');
-
-            if (!match(')')) {
-                update = parseExpression();
-            }
-        }
-
-        expect(')');
-
-        oldInIteration = state.inIteration;
-        state.inIteration = true;
-
-        body = parseStatement();
-
-        state.inIteration = oldInIteration;
-
-        return (typeof left === 'undefined') ?
-                delegate.createForStatement(init, test, update, body) :
-                delegate.createForInStatement(left, right, body);
-    }
-
-    // 12.7 The continue statement
-
-    function parseContinueStatement() {
-        var label = null, key;
-
-        expectKeyword('continue');
-
-        // Optimize the most common form: 'continue;'.
-        if (source.charCodeAt(index) === 0x3B) {
-            lex();
-
-            if (!state.inIteration) {
-                throwError({}, Messages.IllegalContinue);
-            }
-
-            return delegate.createContinueStatement(null);
-        }
-
-        if (peekLineTerminator()) {
-            if (!state.inIteration) {
-                throwError({}, Messages.IllegalContinue);
-            }
-
-            return delegate.createContinueStatement(null);
-        }
-
-        if (lookahead.type === Token.Identifier) {
-            label = parseVariableIdentifier();
-
-            key = '$' + label.name;
-            if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
-                throwError({}, Messages.UnknownLabel, label.name);
-            }
-        }
-
-        consumeSemicolon();
-
-        if (label === null && !state.inIteration) {
-            throwError({}, Messages.IllegalContinue);
-        }
-
-        return delegate.createContinueStatement(label);
-    }
-
-    // 12.8 The break statement
-
-    function parseBreakStatement() {
-        var label = null, key;
-
-        expectKeyword('break');
-
-        // Catch the very common case first: immediately a semicolon (U+003B).
-        if (source.charCodeAt(index) === 0x3B) {
-            lex();
-
-            if (!(state.inIteration || state.inSwitch)) {
-                throwError({}, Messages.IllegalBreak);
-            }
-
-            return delegate.createBreakStatement(null);
-        }
-
-        if (peekLineTerminator()) {
-            if (!(state.inIteration || state.inSwitch)) {
-                throwError({}, Messages.IllegalBreak);
-            }
-
-            return delegate.createBreakStatement(null);
-        }
-
-        if (lookahead.type === Token.Identifier) {
-            label = parseVariableIdentifier();
-
-            key = '$' + label.name;
-            if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
-                throwError({}, Messages.UnknownLabel, label.name);
-            }
-        }
-
-        consumeSemicolon();
-
-        if (label === null && !(state.inIteration || state.inSwitch)) {
-            throwError({}, Messages.IllegalBreak);
-        }
-
-        return delegate.createBreakStatement(label);
-    }
-
-    // 12.9 The return statement
-
-    function parseReturnStatement() {
-        var argument = null;
-
-        expectKeyword('return');
-
-        if (!state.inFunctionBody) {
-            throwErrorTolerant({}, Messages.IllegalReturn);
-        }
-
-        // 'return' followed by a space and an identifier is very common.
-        if (source.charCodeAt(index) === 0x20) {
-            if (isIdentifierStart(source.charCodeAt(index + 1))) {
-                argument = parseExpression();
-                consumeSemicolon();
-                return delegate.createReturnStatement(argument);
-            }
-        }
-
-        if (peekLineTerminator()) {
-            return delegate.createReturnStatement(null);
-        }
-
-        if (!match(';')) {
-            if (!match('}') && lookahead.type !== Token.EOF) {
-                argument = parseExpression();
-            }
-        }
-
-        consumeSemicolon();
-
-        return delegate.createReturnStatement(argument);
-    }
-
-    // 12.10 The with statement
-
-    function parseWithStatement() {
-        var object, body;
-
-        if (strict) {
-            // TODO(ikarienator): Should we update the test cases instead?
-            skipComment();
-            throwErrorTolerant({}, Messages.StrictModeWith);
-        }
-
-        expectKeyword('with');
-
-        expect('(');
-
-        object = parseExpression();
-
-        expect(')');
-
-        body = parseStatement();
-
-        return delegate.createWithStatement(object, body);
-    }
-
-    // 12.10 The swith statement
-
-    function parseSwitchCase() {
-        var test, consequent = [], statement, startToken;
-
-        startToken = lookahead;
-        if (matchKeyword('default')) {
-            lex();
-            test = null;
-        } else {
-            expectKeyword('case');
-            test = parseExpression();
-        }
-        expect(':');
-
-        while (index < length) {
-            if (match('}') || matchKeyword('default') || matchKeyword('case')) {
-                break;
-            }
-            statement = parseStatement();
-            consequent.push(statement);
-        }
-
-        return delegate.markEnd(delegate.createSwitchCase(test, consequent), startToken);
-    }
-
-    function parseSwitchStatement() {
-        var discriminant, cases, clause, oldInSwitch, defaultFound;
-
-        expectKeyword('switch');
-
-        expect('(');
-
-        discriminant = parseExpression();
-
-        expect(')');
-
-        expect('{');
-
-        cases = [];
-
-        if (match('}')) {
-            lex();
-            return delegate.createSwitchStatement(discriminant, cases);
-        }
-
-        oldInSwitch = state.inSwitch;
-        state.inSwitch = true;
-        defaultFound = false;
-
-        while (index < length) {
-            if (match('}')) {
-                break;
-            }
-            clause = parseSwitchCase();
-            if (clause.test === null) {
-                if (defaultFound) {
-                    throwError({}, Messages.MultipleDefaultsInSwitch);
-                }
-                defaultFound = true;
-            }
-            cases.push(clause);
-        }
-
-        state.inSwitch = oldInSwitch;
-
-        expect('}');
-
-        return delegate.createSwitchStatement(discriminant, cases);
-    }
-
-    // 12.13 The throw statement
-
-    function parseThrowStatement() {
-        var argument;
-
-        expectKeyword('throw');
-
-        if (peekLineTerminator()) {
-            throwError({}, Messages.NewlineAfterThrow);
-        }
-
-        argument = parseExpression();
-
-        consumeSemicolon();
-
-        return delegate.createThrowStatement(argument);
-    }
-
-    // 12.14 The try statement
-
-    function parseCatchClause() {
-        var param, body, startToken;
-
-        startToken = lookahead;
-        expectKeyword('catch');
-
-        expect('(');
-        if (match(')')) {
-            throwUnexpected(lookahead);
-        }
-
-        param = parseVariableIdentifier();
-        // 12.14.1
-        if (strict && isRestrictedWord(param.name)) {
-            throwErrorTolerant({}, Messages.StrictCatchVariable);
-        }
-
-        expect(')');
-        body = parseBlock();
-        return delegate.markEnd(delegate.createCatchClause(param, body), startToken);
-    }
-
-    function parseTryStatement() {
-        var block, handlers = [], finalizer = null;
-
-        expectKeyword('try');
-
-        block = parseBlock();
-
-        if (matchKeyword('catch')) {
-            handlers.push(parseCatchClause());
-        }
-
-        if (matchKeyword('finally')) {
-            lex();
-            finalizer = parseBlock();
-        }
-
-        if (handlers.length === 0 && !finalizer) {
-            throwError({}, Messages.NoCatchOrFinally);
-        }
-
-        return delegate.createTryStatement(block, [], handlers, finalizer);
-    }
-
-    // 12.15 The debugger statement
-
-    function parseDebuggerStatement() {
-        expectKeyword('debugger');
-
-        consumeSemicolon();
-
-        return delegate.createDebuggerStatement();
-    }
-
-    // 12 Statements
-
-    function parseStatement() {
-        var type = lookahead.type,
-            expr,
-            labeledBody,
-            key,
-            startToken;
-
-        if (type === Token.EOF) {
-            throwUnexpected(lookahead);
-        }
-
-        if (type === Token.Punctuator && lookahead.value === '{') {
-            return parseBlock();
-        }
-
-        startToken = lookahead;
-
-        if (type === Token.Punctuator) {
-            switch (lookahead.value) {
-            case ';':
-                return delegate.markEnd(parseEmptyStatement(), startToken);
-            case '(':
-                return delegate.markEnd(parseExpressionStatement(), startToken);
-            default:
-                break;
-            }
-        }
-
-        if (type === Token.Keyword) {
-            switch (lookahead.value) {
-            case 'break':
-                return delegate.markEnd(parseBreakStatement(), startToken);
-            case 'continue':
-                return delegate.markEnd(parseContinueStatement(), startToken);
-            case 'debugger':
-                return delegate.markEnd(parseDebuggerStatement(), startToken);
-            case 'do':
-                return delegate.markEnd(parseDoWhileStatement(), startToken);
-            case 'for':
-                return delegate.markEnd(parseForStatement(), startToken);
-            case 'function':
-                return delegate.markEnd(parseFunctionDeclaration(), startToken);
-            case 'if':
-                return delegate.markEnd(parseIfStatement(), startToken);
-            case 'return':
-                return delegate.markEnd(parseReturnStatement(), startToken);
-            case 'switch':
-                return delegate.markEnd(parseSwitchStatement(), startToken);
-            case 'throw':
-                return delegate.markEnd(parseThrowStatement(), startToken);
-            case 'try':
-                return delegate.markEnd(parseTryStatement(), startToken);
-            case 'var':
-                return delegate.markEnd(parseVariableStatement(), startToken);
-            case 'while':
-                return delegate.markEnd(parseWhileStatement(), startToken);
-            case 'with':
-                return delegate.markEnd(parseWithStatement(), startToken);
-            default:
-                break;
-            }
-        }
-
-        expr = parseExpression();
-
-        // 12.12 Labelled Statements
-        if ((expr.type === Syntax.Identifier) && match(':')) {
-            lex();
-
-            key = '$' + expr.name;
-            if (Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
-                throwError({}, Messages.Redeclaration, 'Label', expr.name);
-            }
-
-            state.labelSet[key] = true;
-            labeledBody = parseStatement();
-            delete state.labelSet[key];
-            return delegate.markEnd(delegate.createLabeledStatement(expr, labeledBody), startToken);
-        }
-
-        consumeSemicolon();
-
-        return delegate.markEnd(delegate.createExpressionStatement(expr), startToken);
-    }
-
-    // 13 Function Definition
-
-    function parseFunctionSourceElements() {
-        var sourceElement, sourceElements = [], token, directive, firstRestricted,
-            oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody, startToken;
-
-        startToken = lookahead;
-        expect('{');
-
-        while (index < length) {
-            if (lookahead.type !== Token.StringLiteral) {
-                break;
-            }
-            token = lookahead;
-
-            sourceElement = parseSourceElement();
-            sourceElements.push(sourceElement);
-            if (sourceElement.expression.type !== Syntax.Literal) {
-                // this is not directive
-                break;
-            }
-            directive = source.slice(token.start + 1, token.end - 1);
-            if (directive === 'use strict') {
-                strict = true;
-                if (firstRestricted) {
-                    throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
-                }
-            } else {
-                if (!firstRestricted && token.octal) {
-                    firstRestricted = token;
-                }
-            }
-        }
-
-        oldLabelSet = state.labelSet;
-        oldInIteration = state.inIteration;
-        oldInSwitch = state.inSwitch;
-        oldInFunctionBody = state.inFunctionBody;
-
-        state.labelSet = {};
-        state.inIteration = false;
-        state.inSwitch = false;
-        state.inFunctionBody = true;
-
-        while (index < length) {
-            if (match('}')) {
-                break;
-            }
-            sourceElement = parseSourceElement();
-            if (typeof sourceElement === 'undefined') {
-                break;
-            }
-            sourceElements.push(sourceElement);
-        }
-
-        expect('}');
-
-        state.labelSet = oldLabelSet;
-        state.inIteration = oldInIteration;
-        state.inSwitch = oldInSwitch;
-        state.inFunctionBody = oldInFunctionBody;
-
-        return delegate.markEnd(delegate.createBlockStatement(sourceElements), startToken);
-    }
-
-    function parseParams(firstRestricted) {
-        var param, params = [], token, stricted, paramSet, key, message;
-        expect('(');
-
-        if (!match(')')) {
-            paramSet = {};
-            while (index < length) {
-                token = lookahead;
-                param = parseVariableIdentifier();
-                key = '$' + token.value;
-                if (strict) {
-                    if (isRestrictedWord(token.value)) {
-                        stricted = token;
-                        message = Messages.StrictParamName;
-                    }
-                    if (Object.prototype.hasOwnProperty.call(paramSet, key)) {
-                        stricted = token;
-                        message = Messages.StrictParamDupe;
-                    }
-                } else if (!firstRestricted) {
-                    if (isRestrictedWord(token.value)) {
-                        firstRestricted = token;
-                        message = Messages.StrictParamName;
-                    } else if (isStrictModeReservedWord(token.value)) {
-                        firstRestricted = token;
-                        message = Messages.StrictReservedWord;
-                    } else if (Object.prototype.hasOwnProperty.call(paramSet, key)) {
-                        firstRestricted = token;
-                        message = Messages.StrictParamDupe;
-                    }
-                }
-                params.push(param);
-                paramSet[key] = true;
-                if (match(')')) {
-                    break;
-                }
-                expect(',');
-            }
-        }
-
-        expect(')');
-
-        return {
-            params: params,
-            stricted: stricted,
-            firstRestricted: firstRestricted,
-            message: message
-        };
-    }
-
-    function parseFunctionDeclaration() {
-        var id, params = [], body, token, stricted, tmp, firstRestricted, message, previousStrict, startToken;
-
-        startToken = lookahead;
-
-        expectKeyword('function');
-        token = lookahead;
-        id = parseVariableIdentifier();
-        if (strict) {
-            if (isRestrictedWord(token.value)) {
-                throwErrorTolerant(token, Messages.StrictFunctionName);
-            }
-        } else {
-            if (isRestrictedWord(token.value)) {
-                firstRestricted = token;
-                message = Messages.StrictFunctionName;
-            } else if (isStrictModeReservedWord(token.value)) {
-                firstRestricted = token;
-                message = Messages.StrictReservedWord;
-            }
-        }
-
-        tmp = parseParams(firstRestricted);
-        params = tmp.params;
-        stricted = tmp.stricted;
-        firstRestricted = tmp.firstRestricted;
-        if (tmp.message) {
-            message = tmp.message;
-        }
-
-        previousStrict = strict;
-        body = parseFunctionSourceElements();
-        if (strict && firstRestricted) {
-            throwError(firstRestricted, message);
-        }
-        if (strict && stricted) {
-            throwErrorTolerant(stricted, message);
-        }
-        strict = previousStrict;
-
-        return delegate.markEnd(delegate.createFunctionDeclaration(id, params, [], body), startToken);
-    }
-
-    function parseFunctionExpression() {
-        var token, id = null, stricted, firstRestricted, message, tmp, params = [], body, previousStrict, startToken;
-
-        startToken = lookahead;
-        expectKeyword('function');
-
-        if (!match('(')) {
-            token = lookahead;
-            id = parseVariableIdentifier();
-            if (strict) {
-                if (isRestrictedWord(token.value)) {
-                    throwErrorTolerant(token, Messages.StrictFunctionName);
-                }
-            } else {
-                if (isRestrictedWord(token.value)) {
-                    firstRestricted = token;
-                    message = Messages.StrictFunctionName;
-                } else if (isStrictModeReservedWord(token.value)) {
-                    firstRestricted = token;
-                    message = Messages.StrictReservedWord;
-                }
-            }
-        }
-
-        tmp = parseParams(firstRestricted);
-        params = tmp.params;
-        stricted = tmp.stricted;
-        firstRestricted = tmp.firstRestricted;
-        if (tmp.message) {
-            message = tmp.message;
-        }
-
-        previousStrict = strict;
-        body = parseFunctionSourceElements();
-        if (strict && firstRestricted) {
-            throwError(firstRestricted, message);
-        }
-        if (strict && stricted) {
-            throwErrorTolerant(stricted, message);
-        }
-        strict = previousStrict;
-
-        return delegate.markEnd(delegate.createFunctionExpression(id, params, [], body), startToken);
-    }
-
-    // 14 Program
-
-    function parseSourceElement() {
-        if (lookahead.type === Token.Keyword) {
-            switch (lookahead.value) {
-            case 'const':
-            case 'let':
-                return parseConstLetDeclaration(lookahead.value);
-            case 'function':
-                return parseFunctionDeclaration();
-            default:
-                return parseStatement();
-            }
-        }
-
-        if (lookahead.type !== Token.EOF) {
-            return parseStatement();
-        }
-    }
-
-    function parseSourceElements() {
-        var sourceElement, sourceElements = [], token, directive, firstRestricted;
-
-        while (index < length) {
-            token = lookahead;
-            if (token.type !== Token.StringLiteral) {
-                break;
-            }
-
-            sourceElement = parseSourceElement();
-            sourceElements.push(sourceElement);
-            if (sourceElement.expression.type !== Syntax.Literal) {
-                // this is not directive
-                break;
-            }
-            directive = source.slice(token.start + 1, token.end - 1);
-            if (directive === 'use strict') {
-                strict = true;
-                if (firstRestricted) {
-                    throwErrorTolerant(firstRestricted, Messages.StrictOctalLiteral);
-                }
-            } else {
-                if (!firstRestricted && token.octal) {
-                    firstRestricted = token;
-                }
-            }
-        }
-
-        while (index < length) {
-            sourceElement = parseSourceElement();
-            /* istanbul ignore if */
-            if (typeof sourceElement === 'undefined') {
-                break;
-            }
-            sourceElements.push(sourceElement);
-        }
-        return sourceElements;
-    }
-
-    function parseProgram() {
-        var body, startToken;
-
-        skipComment();
-        peek();
-        startToken = lookahead;
-        strict = false;
-
-        body = parseSourceElements();
-        return delegate.markEnd(delegate.createProgram(body), startToken);
-    }
-
-    function filterTokenLocation() {
-        var i, entry, token, tokens = [];
-
-        for (i = 0; i < extra.tokens.length; ++i) {
-            entry = extra.tokens[i];
-            token = {
-                type: entry.type,
-                value: entry.value
-            };
-            if (extra.range) {
-                token.range = entry.range;
-            }
-            if (extra.loc) {
-                token.loc = entry.loc;
-            }
-            tokens.push(token);
-        }
-
-        extra.tokens = tokens;
-    }
-
-    function tokenize(code, options) {
-        var toString,
-            token,
-            tokens;
-
-        toString = String;
-        if (typeof code !== 'string' && !(code instanceof String)) {
-            code = toString(code);
-        }
-
-        delegate = SyntaxTreeDelegate;
-        source = code;
-        index = 0;
-        lineNumber = (source.length > 0) ? 1 : 0;
-        lineStart = 0;
-        length = source.length;
-        lookahead = null;
-        state = {
-            allowIn: true,
-            labelSet: {},
-            inFunctionBody: false,
-            inIteration: false,
-            inSwitch: false,
-            lastCommentStart: -1
-        };
-
-        extra = {};
-
-        // Options matching.
-        options = options || {};
-
-        // Of course we collect tokens here.
-        options.tokens = true;
-        extra.tokens = [];
-        extra.tokenize = true;
-        // The following two fields are necessary to compute the Regex tokens.
-        extra.openParenToken = -1;
-        extra.openCurlyToken = -1;
-
-        extra.range = (typeof options.range === 'boolean') && options.range;
-        extra.loc = (typeof options.loc === 'boolean') && options.loc;
-
-        if (typeof options.comment === 'boolean' && options.comment) {
-            extra.comments = [];
-        }
-        if (typeof options.tolerant === 'boolean' && options.tolerant) {
-            extra.errors = [];
-        }
-
-        try {
-            peek();
-            if (lookahead.type === Token.EOF) {
-                return extra.tokens;
-            }
-
-            token = lex();
-            while (lookahead.type !== Token.EOF) {
-                try {
-                    token = lex();
-                } catch (lexError) {
-                    token = lookahead;
-                    if (extra.errors) {
-                        extra.errors.push(lexError);
-                        // We have to break on the first error
-                        // to avoid infinite loops.
-                        break;
-                    } else {
-                        throw lexError;
-                    }
-                }
-            }
-
-            filterTokenLocation();
-            tokens = extra.tokens;
-            if (typeof extra.comments !== 'undefined') {
-                tokens.comments = extra.comments;
-            }
-            if (typeof extra.errors !== 'undefined') {
-                tokens.errors = extra.errors;
-            }
-        } catch (e) {
-            throw e;
-        } finally {
-            extra = {};
-        }
-        return tokens;
-    }
-
-    function parse(code, options) {
-        var program, toString;
-
-        toString = String;
-        if (typeof code !== 'string' && !(code instanceof String)) {
-            code = toString(code);
-        }
-
-        delegate = SyntaxTreeDelegate;
-        source = code;
-        index = 0;
-        lineNumber = (source.length > 0) ? 1 : 0;
-        lineStart = 0;
-        length = source.length;
-        lookahead = null;
-        state = {
-            allowIn: true,
-            labelSet: {},
-            inFunctionBody: false,
-            inIteration: false,
-            inSwitch: false,
-            lastCommentStart: -1
-        };
-
-        extra = {};
-        if (typeof options !== 'undefined') {
-            extra.range = (typeof options.range === 'boolean') && options.range;
-            extra.loc = (typeof options.loc === 'boolean') && options.loc;
-            extra.attachComment = (typeof options.attachComment === 'boolean') && options.attachComment;
-
-            if (extra.loc && options.source !== null && options.source !== undefined) {
-                extra.source = toString(options.source);
-            }
-
-            if (typeof options.tokens === 'boolean' && options.tokens) {
-                extra.tokens = [];
-            }
-            if (typeof options.comment === 'boolean' && options.comment) {
-                extra.comments = [];
-            }
-            if (typeof options.tolerant === 'boolean' && options.tolerant) {
-                extra.errors = [];
-            }
-            if (extra.attachComment) {
-                extra.range = true;
-                extra.comments = [];
-                extra.bottomRightStack = [];
-                extra.trailingComments = [];
-                extra.leadingComments = [];
-            }
-        }
-
-        try {
-            program = parseProgram();
-            if (typeof extra.comments !== 'undefined') {
-                program.comments = extra.comments;
-            }
-            if (typeof extra.tokens !== 'undefined') {
-                filterTokenLocation();
-                program.tokens = extra.tokens;
-            }
-            if (typeof extra.errors !== 'undefined') {
-                program.errors = extra.errors;
-            }
-        } catch (e) {
-            throw e;
-        } finally {
-            extra = {};
-        }
-
-        return program;
-    }
-
-    // Sync with *.json manifests.
-    exports.version = '1.2.5';
-
-    exports.tokenize = tokenize;
-
-    exports.parse = parse;
-
-    // Deep copy.
-   /* istanbul ignore next */
-    exports.Syntax = (function () {
-        var name, types = {};
-
-        if (typeof Object.create === 'function') {
-            types = Object.create(null);
-        }
-
-        for (name in Syntax) {
-            if (Syntax.hasOwnProperty(name)) {
-                types[name] = Syntax[name];
-            }
-        }
-
-        if (typeof Object.freeze === 'function') {
-            Object.freeze(types);
-        }
-
-        return types;
-    }());
-
-}));
-/* vim: set sw=4 ts=4 et tw=80 : */
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/package.json b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/package.json
deleted file mode 100644
index 47c8d2574a9..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/package.json
+++ /dev/null
@@ -1,107 +0,0 @@
-{
-  "_from": "esprima@^1.0.4",
-  "_id": "esprima@1.2.5",
-  "_inBundle": false,
-  "_integrity": "sha1-CZNQL+r2aBODJXVvMPmlH+7sEek=",
-  "_location": "/gl-vignette-background/esprima",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "esprima@^1.0.4",
-    "name": "esprima",
-    "escapedName": "esprima",
-    "rawSpec": "^1.0.4",
-    "saveSpec": null,
-    "fetchSpec": "^1.0.4"
-  },
-  "_requiredBy": [
-    "/gl-vignette-background/glslify"
-  ],
-  "_resolved": "https://registry.npmjs.org/esprima/-/esprima-1.2.5.tgz",
-  "_shasum": "0993502feaf668138325756f30f9a51feeec11e9",
-  "_spec": "esprima@^1.0.4",
-  "_where": "/Users/forrest/Audius/vis-test/node_modules/gl-vignette-background/node_modules/glslify",
-  "author": {
-    "name": "Ariya Hidayat",
-    "email": "ariya.hidayat@gmail.com"
-  },
-  "bin": {
-    "esparse": "./bin/esparse.js",
-    "esvalidate": "./bin/esvalidate.js"
-  },
-  "bugs": {
-    "url": "http://issues.esprima.org"
-  },
-  "bundleDependencies": false,
-  "deprecated": false,
-  "description": "ECMAScript parsing infrastructure for multipurpose analysis",
-  "devDependencies": {
-    "complexity-report": "~0.6.1",
-    "eslint": "~0.4.3",
-    "istanbul": "~0.2.6",
-    "jscs": "~1.2.4",
-    "jslint": "~0.1.9",
-    "json-diff": "~0.3.1",
-    "optimist": "~0.6.0",
-    "regenerate": "~0.5.4",
-    "unicode-6.3.0": "~0.1.0"
-  },
-  "engines": {
-    "node": ">=0.4.0"
-  },
-  "files": [
-    "bin",
-    "test/run.js",
-    "test/runner.js",
-    "test/test.js",
-    "test/compat.js",
-    "test/reflect.js",
-    "esprima.js"
-  ],
-  "homepage": "http://esprima.org",
-  "keywords": [
-    "ast",
-    "ecmascript",
-    "javascript",
-    "parser",
-    "syntax"
-  ],
-  "licenses": [
-    {
-      "type": "BSD",
-      "url": "http://github.com/ariya/esprima/raw/master/LICENSE.BSD"
-    }
-  ],
-  "main": "esprima.js",
-  "maintainers": [
-    {
-      "name": "Ariya Hidayat",
-      "email": "ariya.hidayat@gmail.com",
-      "url": "http://ariya.ofilabs.com"
-    }
-  ],
-  "name": "esprima",
-  "repository": {
-    "type": "git",
-    "url": "git+ssh://git@github.com/ariya/esprima.git"
-  },
-  "scripts": {
-    "analyze-complexity": "node tools/list-complexity.js",
-    "analyze-coverage": "node node_modules/istanbul/lib/cli.js cover test/runner.js",
-    "benchmark": "node test/benchmarks.js",
-    "benchmark-quick": "node test/benchmarks.js quick",
-    "check-complexity": "node node_modules/complexity-report/src/cli.js --maxcc 14 --silent -l -w esprima.js",
-    "check-coverage": "node node_modules/istanbul/lib/cli.js check-coverage --statement 100 --branch 100 --function 100",
-    "check-version": "node tools/check-version.js",
-    "complexity": "npm run-script analyze-complexity && npm run-script check-complexity",
-    "coverage": "npm run-script analyze-coverage && npm run-script check-coverage",
-    "eslint": "node node_modules/eslint/bin/eslint.js esprima.js",
-    "generate-regex": "node tools/generate-identifier-regex.js",
-    "jscs": "node node_modules/jscs/bin/jscs esprima.js",
-    "jslint": "echo Skipping JSLint",
-    "lint": "npm run-script check-version && npm run-script eslint && npm run-script jscs && npm run-script jslint",
-    "test": "npm run-script lint && node test/run.js && npm run-script coverage && npm run-script complexity"
-  },
-  "version": "1.2.5"
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/compat.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/compat.js
deleted file mode 100644
index d9b052402c1..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/compat.js
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
-  Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
-  Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-/*jslint node: true */
-/*global document: true, window:true, esprima: true, testReflect: true */
-
-var runTests;
-
-function getContext(esprima, reportCase, reportFailure) {
-    'use strict';
-
-    var Reflect, Pattern;
-
-    // Maps Mozilla Reflect object to our Esprima parser.
-    Reflect = {
-        parse: function (code) {
-            var result;
-
-            reportCase(code);
-
-            try {
-                result = esprima.parse(code);
-            } catch (error) {
-                result = error;
-            }
-
-            return result;
-        }
-    };
-
-    // This is used by Reflect test suite to match a syntax tree.
-    Pattern = function (obj) {
-        var pattern;
-
-        // Poor man's deep object cloning.
-        pattern = JSON.parse(JSON.stringify(obj));
-
-        // Special handling for regular expression literal since we need to
-        // convert it to a string literal, otherwise it will be decoded
-        // as object "{}" and the regular expression would be lost.
-        if (obj.type && obj.type === 'Literal') {
-            if (obj.value instanceof RegExp) {
-                pattern = {
-                    type: obj.type,
-                    value: obj.value.toString()
-                };
-            }
-        }
-
-        // Special handling for branch statement because SpiderMonkey
-        // prefers to put the 'alternate' property before 'consequent'.
-        if (obj.type && obj.type === 'IfStatement') {
-            pattern = {
-                type: pattern.type,
-                test: pattern.test,
-                consequent: pattern.consequent,
-                alternate: pattern.alternate
-            };
-        }
-
-        // Special handling for do while statement because SpiderMonkey
-        // prefers to put the 'test' property before 'body'.
-        if (obj.type && obj.type === 'DoWhileStatement') {
-            pattern = {
-                type: pattern.type,
-                body: pattern.body,
-                test: pattern.test
-            };
-        }
-
-        function adjustRegexLiteralAndRaw(key, value) {
-            if (key === 'value' && value instanceof RegExp) {
-                value = value.toString();
-            } else if (key === 'raw' && typeof value === "string") {
-                // Ignore Esprima-specific 'raw' property.
-                return undefined;
-            }
-            return value;
-        }
-
-        if (obj.type && (obj.type === 'Program')) {
-            pattern.assert = function (tree) {
-                var actual, expected;
-                actual = JSON.stringify(tree, adjustRegexLiteralAndRaw, 4);
-                expected = JSON.stringify(obj, null, 4);
-
-                if (expected !== actual) {
-                    reportFailure(expected, actual);
-                }
-            };
-        }
-
-        return pattern;
-    };
-
-    return {
-        Reflect: Reflect,
-        Pattern: Pattern
-    };
-}
-
-if (typeof window !== 'undefined') {
-    // Run all tests in a browser environment.
-    runTests = function () {
-        'use strict';
-
-        var total = 0,
-            failures = 0;
-
-        function setText(el, str) {
-            if (typeof el.innerText === 'string') {
-                el.innerText = str;
-            } else {
-                el.textContent = str;
-            }
-        }
-
-        function reportCase(code) {
-            var report, e;
-            report = document.getElementById('report');
-            e = document.createElement('pre');
-            e.setAttribute('class', 'code');
-            setText(e, code);
-            report.appendChild(e);
-            total += 1;
-        }
-
-        function reportFailure(expected, actual) {
-            var report, e;
-
-            failures += 1;
-
-            report = document.getElementById('report');
-
-            e = document.createElement('p');
-            setText(e, 'Expected');
-            report.appendChild(e);
-
-            e = document.createElement('pre');
-            e.setAttribute('class', 'expected');
-            setText(e, expected);
-            report.appendChild(e);
-
-            e = document.createElement('p');
-            setText(e, 'Actual');
-            report.appendChild(e);
-
-            e = document.createElement('pre');
-            e.setAttribute('class', 'actual');
-            setText(e, actual);
-            report.appendChild(e);
-        }
-
-        setText(document.getElementById('version'), esprima.version);
-
-        window.setTimeout(function () {
-            var tick, context = getContext(esprima, reportCase, reportFailure);
-
-            tick = new Date();
-            testReflect(context.Reflect, context.Pattern);
-            tick = (new Date()) - tick;
-
-            if (failures > 0) {
-                document.getElementById('status').className = 'alert-box alert';
-                setText(document.getElementById('status'), total + ' tests. ' +
-                    'Failures: ' + failures + '. ' + tick + ' ms');
-            } else {
-                document.getElementById('status').className = 'alert-box success';
-                setText(document.getElementById('status'), total + ' tests. ' +
-                    'No failure. ' + tick + ' ms');
-            }
-        }, 11);
-    };
-} else {
-    (function (global) {
-        'use strict';
-        var esprima = require('../esprima'),
-            tick,
-            total = 0,
-            failures = [],
-            header,
-            current,
-            context;
-
-        function reportCase(code) {
-            total += 1;
-            current = code;
-        }
-
-        function reportFailure(expected, actual) {
-            failures.push({
-                source: current,
-                expected: expected.toString(),
-                actual: actual.toString()
-            });
-        }
-
-        context = getContext(esprima, reportCase, reportFailure);
-
-        tick = new Date();
-        require('./reflect').testReflect(context.Reflect, context.Pattern);
-        tick = (new Date()) - tick;
-
-        header = total + ' tests. ' + failures.length + ' failures. ' +
-            tick + ' ms';
-        if (failures.length) {
-            console.error(header);
-            failures.forEach(function (failure) {
-                console.error(failure.source + ': Expected\n    ' +
-                    failure.expected.split('\n').join('\n    ') +
-                    '\nto match\n    ' + failure.actual);
-            });
-        } else {
-            console.log(header);
-        }
-        process.exit(failures.length === 0 ? 0 : 1);
-    }(this));
-}
-/* vim: set sw=4 ts=4 et tw=80 : */
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/reflect.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/reflect.js
deleted file mode 100644
index dba1ba8f1fe..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/reflect.js
+++ /dev/null
@@ -1,422 +0,0 @@
-// This is modified from Mozilla Reflect.parse test suite (the file is located
-// at js/src/tests/js1_8_5/extensions/reflect-parse.js in the source tree).
-//
-// Some notable changes:
-//   * Removed unsupported features (destructuring, let, comprehensions...).
-//   * Removed tests for E4X (ECMAScript for XML).
-//   * Removed everything related to builder.
-//   * Enclosed every 'Pattern' construct with a scope.
-//   * Tweaked some expected tree to remove generator field.
-//   * Removed the test for bug 632030 and bug 632024.
-
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*
- * Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/licenses/publicdomain/
- */
-
-(function (exports) {
-
-function testReflect(Reflect, Pattern) {
-
-function program(elts) { return Pattern({ type: "Program", body: elts }) }
-function exprStmt(expr) { return Pattern({ type: "ExpressionStatement", expression: expr }) }
-function throwStmt(expr) { return Pattern({ type: "ThrowStatement", argument: expr }) }
-function returnStmt(expr) { return Pattern({ type: "ReturnStatement", argument: expr }) }
-function yieldExpr(expr) { return Pattern({ type: "YieldExpression", argument: expr }) }
-function lit(val) { return Pattern({ type: "Literal", value: val }) }
-var thisExpr = Pattern({ type: "ThisExpression" });
-function funDecl(id, params, body) { return Pattern({ type: "FunctionDeclaration",
-                                             id: id,
-                                             params: params,
-                                             defaults: [],
-                                             body: body,
-                                             rest: null,
-                                             generator: false,
-                                             expression: false
-                                             }) }
-function genFunDecl(id, params, body) { return Pattern({ type: "FunctionDeclaration",
-                                                id: id,
-                                                params: params,
-                                                defaults: [],
-                                                body: body,
-                                                rest: null,
-                                                generator: false,
-                                                expression: false
-                                                }) }
-function declarator(id, init) { return Pattern({ type: "VariableDeclarator", id: id, init: init }) }
-function varDecl(decls) { return Pattern({ type: "VariableDeclaration", declarations: decls, kind: "var" }) }
-function letDecl(decls) { return Pattern({ type: "VariableDeclaration", declarations: decls, kind: "let" }) }
-function constDecl(decls) { return Pattern({ type: "VariableDeclaration", declarations: decls, kind: "const" }) }
-function ident(name) { return Pattern({ type: "Identifier", name: name }) }
-function dotExpr(obj, id) { return Pattern({ type: "MemberExpression", computed: false, object: obj, property: id }) }
-function memExpr(obj, id) { return Pattern({ type: "MemberExpression", computed: true, object: obj, property: id }) }
-function forStmt(init, test, update, body) { return Pattern({ type: "ForStatement", init: init, test: test, update: update, body: body }) }
-function forInStmt(lhs, rhs, body) { return Pattern({ type: "ForInStatement", left: lhs, right: rhs, body: body, each: false }) }
-function forEachInStmt(lhs, rhs, body) { return Pattern({ type: "ForInStatement", left: lhs, right: rhs, body: body, each: true }) }
-function breakStmt(lab) { return Pattern({ type: "BreakStatement", label: lab }) }
-function continueStmt(lab) { return Pattern({ type: "ContinueStatement", label: lab }) }
-function blockStmt(body) { return Pattern({ type: "BlockStatement", body: body }) }
-var emptyStmt = Pattern({ type: "EmptyStatement" });
-function ifStmt(test, cons, alt) { return Pattern({ type: "IfStatement", test: test, alternate: alt, consequent: cons }) }
-function labStmt(lab, stmt) { return Pattern({ type: "LabeledStatement", label: lab, body: stmt }) }
-function withStmt(obj, stmt) { return Pattern({ type: "WithStatement", object: obj, body: stmt }) }
-function whileStmt(test, stmt) { return Pattern({ type: "WhileStatement", test: test, body: stmt }) }
-function doStmt(stmt, test) { return Pattern({ type: "DoWhileStatement", test: test, body: stmt }) }
-function switchStmt(disc, cases) { return Pattern({ type: "SwitchStatement", discriminant: disc, cases: cases }) }
-function caseClause(test, stmts) { return Pattern({ type: "SwitchCase", test: test, consequent: stmts }) }
-function defaultClause(stmts) { return Pattern({ type: "SwitchCase", test: null, consequent: stmts }) }
-function catchClause(id, guard, body) { if (guard) { return Pattern({ type: "GuardedCatchClause", param: id, guard: guard, body: body }) } else { return Pattern({ type: "CatchClause", param: id, body: body }) } }
-function tryStmt(body, guarded, catches, fin) { return Pattern({ type: "TryStatement", block: body, guardedHandlers: guarded, handlers: catches, finalizer: fin }) }
-function letStmt(head, body) { return Pattern({ type: "LetStatement", head: head, body: body }) }
-function funExpr(id, args, body, gen) { return Pattern({ type: "FunctionExpression",
-                                                id: id,
-                                                params: args,
-                                                defaults: [],
-                                                body: body,
-                                                rest: null,
-                                                generator: false,
-                                                expression: false
-                                                }) }
-function genFunExpr(id, args, body) { return Pattern({ type: "FunctionExpression",
-                                              id: id,
-                                              params: args,
-                                              defaults: [],
-                                              body: body,
-                                              rest: null,
-                                              generator: false,
-                                              expression: false
-                                              }) }
-
-function unExpr(op, arg) { return Pattern({ type: "UnaryExpression", operator: op, argument: arg, prefix: true }) }
-function binExpr(op, left, right) { return Pattern({ type: "BinaryExpression", operator: op, left: left, right: right }) }
-function aExpr(op, left, right) { return Pattern({ type: "AssignmentExpression", operator: op, left: left, right: right }) }
-function updExpr(op, arg, prefix) { return Pattern({ type: "UpdateExpression", operator: op, argument: arg, prefix: prefix }) }
-function logExpr(op, left, right) { return Pattern({ type: "LogicalExpression", operator: op, left: left, right: right }) }
-
-function condExpr(test, cons, alt) { return Pattern({ type: "ConditionalExpression", test: test, consequent: cons, alternate: alt }) }
-function seqExpr(exprs) { return Pattern({ type: "SequenceExpression", expressions: exprs }) }
-function newExpr(callee, args) { return Pattern({ type: "NewExpression", callee: callee, arguments: args }) }
-function callExpr(callee, args) { return Pattern({ type: "CallExpression", callee: callee, arguments: args }) }
-function arrExpr(elts) { return Pattern({ type: "ArrayExpression", elements: elts }) }
-function objExpr(elts) { return Pattern({ type: "ObjectExpression", properties: elts }) }
-function objProp(key, value, kind) { return Pattern({ type: "Property", key: key, value: value, kind: kind }) }
-
-function arrPatt(elts) { return Pattern({ type: "ArrayPattern", elements: elts }) }
-function objPatt(elts) { return Pattern({ type: "ObjectPattern", properties: elts }) }
-
-function localSrc(src) { return "(function(){ " + src + " })" }
-function localPatt(patt) { return program([exprStmt(funExpr(null, [], blockStmt([patt])))]) }
-function blockSrc(src) { return "(function(){ { " + src + " } })" }
-function blockPatt(patt) { return program([exprStmt(funExpr(null, [], blockStmt([blockStmt([patt])])))]) }
-
-function assertBlockStmt(src, patt) {
-    blockPatt(patt).assert(Reflect.parse(blockSrc(src)));
-}
-
-function assertBlockExpr(src, patt) {
-    assertBlockStmt(src, exprStmt(patt));
-}
-
-function assertBlockDecl(src, patt, builder) {
-    blockPatt(patt).assert(Reflect.parse(blockSrc(src), {builder: builder}));
-}
-
-function assertLocalStmt(src, patt) {
-    localPatt(patt).assert(Reflect.parse(localSrc(src)));
-}
-
-function assertLocalExpr(src, patt) {
-    assertLocalStmt(src, exprStmt(patt));
-}
-
-function assertLocalDecl(src, patt) {
-    localPatt(patt).assert(Reflect.parse(localSrc(src)));
-}
-
-function assertGlobalStmt(src, patt, builder) {
-    program([patt]).assert(Reflect.parse(src, {builder: builder}));
-}
-
-function assertGlobalExpr(src, patt, builder) {
-    program([exprStmt(patt)]).assert(Reflect.parse(src, {builder: builder}));
-    //assertStmt(src, exprStmt(patt));
-}
-
-function assertGlobalDecl(src, patt) {
-    program([patt]).assert(Reflect.parse(src));
-}
-
-function assertProg(src, patt) {
-    program(patt).assert(Reflect.parse(src));
-}
-
-function assertStmt(src, patt) {
-    assertLocalStmt(src, patt);
-    assertGlobalStmt(src, patt);
-    assertBlockStmt(src, patt);
-}
-
-function assertExpr(src, patt) {
-    assertLocalExpr(src, patt);
-    assertGlobalExpr(src, patt);
-    assertBlockExpr(src, patt);
-}
-
-function assertDecl(src, patt) {
-    assertLocalDecl(src, patt);
-    assertGlobalDecl(src, patt);
-    assertBlockDecl(src, patt);
-}
-
-function assertError(src, errorType) {
-    try {
-        Reflect.parse(src);
-    } catch (e) {
-        return;
-    }
-    throw new Error("expected " + errorType.name + " for " + uneval(src));
-}
-
-
-// general tests
-
-// NB: These are useful but for now jit-test doesn't do I/O reliably.
-
-//program(_).assert(Reflect.parse(snarf('data/flapjax.txt')));
-//program(_).assert(Reflect.parse(snarf('data/jquery-1.4.2.txt')));
-//program(_).assert(Reflect.parse(snarf('data/prototype.js')));
-//program(_).assert(Reflect.parse(snarf('data/dojo.js.uncompressed.js')));
-//program(_).assert(Reflect.parse(snarf('data/mootools-1.2.4-core-nc.js')));
-
-
-// declarations
-
-assertDecl("var x = 1, y = 2, z = 3",
-           varDecl([declarator(ident("x"), lit(1)),
-                    declarator(ident("y"), lit(2)),
-                    declarator(ident("z"), lit(3))]));
-assertDecl("var x, y, z",
-           varDecl([declarator(ident("x"), null),
-                    declarator(ident("y"), null),
-                    declarator(ident("z"), null)]));
-assertDecl("function foo() { }",
-           funDecl(ident("foo"), [], blockStmt([])));
-assertDecl("function foo() { return 42 }",
-           funDecl(ident("foo"), [], blockStmt([returnStmt(lit(42))])));
-
-
-// Bug 591437: rebound args have their defs turned into uses
-assertDecl("function f(a) { function a() { } }",
-           funDecl(ident("f"), [ident("a")], blockStmt([funDecl(ident("a"), [], blockStmt([]))])));
-assertDecl("function f(a,b,c) { function b() { } }",
-           funDecl(ident("f"), [ident("a"),ident("b"),ident("c")], blockStmt([funDecl(ident("b"), [], blockStmt([]))])));
-
-// expressions
-
-assertExpr("true", lit(true));
-assertExpr("false", lit(false));
-assertExpr("42", lit(42));
-assertExpr("(/asdf/)", lit(/asdf/));
-assertExpr("this", thisExpr);
-assertExpr("foo", ident("foo"));
-assertExpr("foo.bar", dotExpr(ident("foo"), ident("bar")));
-assertExpr("foo[bar]", memExpr(ident("foo"), ident("bar")));
-assertExpr("(function(){})", funExpr(null, [], blockStmt([])));
-assertExpr("(function f() {})", funExpr(ident("f"), [], blockStmt([])));
-assertExpr("(function f(x,y,z) {})", funExpr(ident("f"), [ident("x"),ident("y"),ident("z")], blockStmt([])));
-assertExpr("(++x)", updExpr("++", ident("x"), true));
-assertExpr("(x++)", updExpr("++", ident("x"), false));
-assertExpr("(+x)", unExpr("+", ident("x")));
-assertExpr("(-x)", unExpr("-", ident("x")));
-assertExpr("(!x)", unExpr("!", ident("x")));
-assertExpr("(~x)", unExpr("~", ident("x")));
-assertExpr("(delete x)", unExpr("delete", ident("x")));
-assertExpr("(typeof x)", unExpr("typeof", ident("x")));
-assertExpr("(void x)", unExpr("void", ident("x")));
-assertExpr("(x == y)", binExpr("==", ident("x"), ident("y")));
-assertExpr("(x != y)", binExpr("!=", ident("x"), ident("y")));
-assertExpr("(x === y)", binExpr("===", ident("x"), ident("y")));
-assertExpr("(x !== y)", binExpr("!==", ident("x"), ident("y")));
-assertExpr("(x < y)", binExpr("<", ident("x"), ident("y")));
-assertExpr("(x <= y)", binExpr("<=", ident("x"), ident("y")));
-assertExpr("(x > y)", binExpr(">", ident("x"), ident("y")));
-assertExpr("(x >= y)", binExpr(">=", ident("x"), ident("y")));
-assertExpr("(x << y)", binExpr("<<", ident("x"), ident("y")));
-assertExpr("(x >> y)", binExpr(">>", ident("x"), ident("y")));
-assertExpr("(x >>> y)", binExpr(">>>", ident("x"), ident("y")));
-assertExpr("(x + y)", binExpr("+", ident("x"), ident("y")));
-assertExpr("(w + x + y + z)", binExpr("+", binExpr("+", binExpr("+", ident("w"), ident("x")), ident("y")), ident("z")));
-assertExpr("(x - y)", binExpr("-", ident("x"), ident("y")));
-assertExpr("(w - x - y - z)", binExpr("-", binExpr("-", binExpr("-", ident("w"), ident("x")), ident("y")), ident("z")));
-assertExpr("(x * y)", binExpr("*", ident("x"), ident("y")));
-assertExpr("(x / y)", binExpr("/", ident("x"), ident("y")));
-assertExpr("(x % y)", binExpr("%", ident("x"), ident("y")));
-assertExpr("(x | y)", binExpr("|", ident("x"), ident("y")));
-assertExpr("(x ^ y)", binExpr("^", ident("x"), ident("y")));
-assertExpr("(x & y)", binExpr("&", ident("x"), ident("y")));
-assertExpr("(x in y)", binExpr("in", ident("x"), ident("y")));
-assertExpr("(x instanceof y)", binExpr("instanceof", ident("x"), ident("y")));
-assertExpr("(x = y)", aExpr("=", ident("x"), ident("y")));
-assertExpr("(x += y)", aExpr("+=", ident("x"), ident("y")));
-assertExpr("(x -= y)", aExpr("-=", ident("x"), ident("y")));
-assertExpr("(x *= y)", aExpr("*=", ident("x"), ident("y")));
-assertExpr("(x /= y)", aExpr("/=", ident("x"), ident("y")));
-assertExpr("(x %= y)", aExpr("%=", ident("x"), ident("y")));
-assertExpr("(x <<= y)", aExpr("<<=", ident("x"), ident("y")));
-assertExpr("(x >>= y)", aExpr(">>=", ident("x"), ident("y")));
-assertExpr("(x >>>= y)", aExpr(">>>=", ident("x"), ident("y")));
-assertExpr("(x |= y)", aExpr("|=", ident("x"), ident("y")));
-assertExpr("(x ^= y)", aExpr("^=", ident("x"), ident("y")));
-assertExpr("(x &= y)", aExpr("&=", ident("x"), ident("y")));
-assertExpr("(x || y)", logExpr("||", ident("x"), ident("y")));
-assertExpr("(x && y)", logExpr("&&", ident("x"), ident("y")));
-assertExpr("(w || x || y || z)", logExpr("||", logExpr("||", logExpr("||", ident("w"), ident("x")), ident("y")), ident("z")))
-assertExpr("(x ? y : z)", condExpr(ident("x"), ident("y"), ident("z")));
-assertExpr("(x,y)", seqExpr([ident("x"),ident("y")]))
-assertExpr("(x,y,z)", seqExpr([ident("x"),ident("y"),ident("z")]))
-assertExpr("(a,b,c,d,e,f,g)", seqExpr([ident("a"),ident("b"),ident("c"),ident("d"),ident("e"),ident("f"),ident("g")]));
-assertExpr("(new Object)", newExpr(ident("Object"), []));
-assertExpr("(new Object())", newExpr(ident("Object"), []));
-assertExpr("(new Object(42))", newExpr(ident("Object"), [lit(42)]));
-assertExpr("(new Object(1,2,3))", newExpr(ident("Object"), [lit(1),lit(2),lit(3)]));
-assertExpr("(String())", callExpr(ident("String"), []));
-assertExpr("(String(42))", callExpr(ident("String"), [lit(42)]));
-assertExpr("(String(1,2,3))", callExpr(ident("String"), [lit(1),lit(2),lit(3)]));
-assertExpr("[]", arrExpr([]));
-assertExpr("[1]", arrExpr([lit(1)]));
-assertExpr("[1,2]", arrExpr([lit(1),lit(2)]));
-assertExpr("[1,2,3]", arrExpr([lit(1),lit(2),lit(3)]));
-assertExpr("[1,,2,3]", arrExpr([lit(1),,lit(2),lit(3)]));
-assertExpr("[1,,,2,3]", arrExpr([lit(1),,,lit(2),lit(3)]));
-assertExpr("[1,,,2,,3]", arrExpr([lit(1),,,lit(2),,lit(3)]));
-assertExpr("[1,,,2,,,3]", arrExpr([lit(1),,,lit(2),,,lit(3)]));
-assertExpr("[,1,2,3]", arrExpr([,lit(1),lit(2),lit(3)]));
-assertExpr("[,,1,2,3]", arrExpr([,,lit(1),lit(2),lit(3)]));
-assertExpr("[,,,1,2,3]", arrExpr([,,,lit(1),lit(2),lit(3)]));
-assertExpr("[,,,1,2,3,]", arrExpr([,,,lit(1),lit(2),lit(3)]));
-assertExpr("[,,,1,2,3,,]", arrExpr([,,,lit(1),lit(2),lit(3),undefined]));
-assertExpr("[,,,1,2,3,,,]", arrExpr([,,,lit(1),lit(2),lit(3),undefined,undefined]));
-assertExpr("[,,,,,]", arrExpr([undefined,undefined,undefined,undefined,undefined]));
-assertExpr("({})", objExpr([]));
-assertExpr("({x:1})", objExpr([objProp(ident("x"), lit(1), "init")]));
-assertExpr("({x:1, y:2})", objExpr([objProp(ident("x"), lit(1), "init"),
-                                    objProp(ident("y"), lit(2), "init")]));
-assertExpr("({x:1, y:2, z:3})", objExpr([objProp(ident("x"), lit(1), "init"),
-                                         objProp(ident("y"), lit(2), "init"),
-                                         objProp(ident("z"), lit(3), "init") ]));
-assertExpr("({x:1, 'y':2, z:3})", objExpr([objProp(ident("x"), lit(1), "init"),
-                                           objProp(lit("y"), lit(2), "init"),
-                                           objProp(ident("z"), lit(3), "init") ]));
-assertExpr("({'x':1, 'y':2, z:3})", objExpr([objProp(lit("x"), lit(1), "init"),
-                                             objProp(lit("y"), lit(2), "init"),
-                                             objProp(ident("z"), lit(3), "init") ]));
-assertExpr("({'x':1, 'y':2, 3:3})", objExpr([objProp(lit("x"), lit(1), "init"),
-                                             objProp(lit("y"), lit(2), "init"),
-                                             objProp(lit(3), lit(3), "init") ]));
-
-// Bug 571617: eliminate constant-folding
-assertExpr("2 + 3", binExpr("+", lit(2), lit(3)));
-
-// Bug 632026: constant-folding
-assertExpr("typeof(0?0:a)", unExpr("typeof", condExpr(lit(0), lit(0), ident("a"))));
-
-// Bug 632056: constant-folding
-program([exprStmt(ident("f")),
-         ifStmt(lit(1),
-                funDecl(ident("f"), [], blockStmt([])),
-                null)]).assert(Reflect.parse("f; if (1) function f(){}"));
-
-// statements
-
-assertStmt("throw 42", throwStmt(lit(42)));
-assertStmt("for (;;) break", forStmt(null, null, null, breakStmt(null)));
-assertStmt("for (x; y; z) break", forStmt(ident("x"), ident("y"), ident("z"), breakStmt(null)));
-assertStmt("for (var x; y; z) break", forStmt(varDecl([declarator(ident("x"), null)]), ident("y"), ident("z"), breakStmt(null)));
-assertStmt("for (var x = 42; y; z) break", forStmt(varDecl([declarator(ident("x"), lit(42))]), ident("y"), ident("z"), breakStmt(null)));
-assertStmt("for (x; ; z) break", forStmt(ident("x"), null, ident("z"), breakStmt(null)));
-assertStmt("for (var x; ; z) break", forStmt(varDecl([declarator(ident("x"), null)]), null, ident("z"), breakStmt(null)));
-assertStmt("for (var x = 42; ; z) break", forStmt(varDecl([declarator(ident("x"), lit(42))]), null, ident("z"), breakStmt(null)));
-assertStmt("for (x; y; ) break", forStmt(ident("x"), ident("y"), null, breakStmt(null)));
-assertStmt("for (var x; y; ) break", forStmt(varDecl([declarator(ident("x"), null)]), ident("y"), null, breakStmt(null)));
-assertStmt("for (var x = 42; y; ) break", forStmt(varDecl([declarator(ident("x"),lit(42))]), ident("y"), null, breakStmt(null)));
-assertStmt("for (var x in y) break", forInStmt(varDecl([declarator(ident("x"),null)]), ident("y"), breakStmt(null)));
-assertStmt("for (x in y) break", forInStmt(ident("x"), ident("y"), breakStmt(null)));
-assertStmt("{ }", blockStmt([]));
-assertStmt("{ throw 1; throw 2; throw 3; }", blockStmt([ throwStmt(lit(1)), throwStmt(lit(2)), throwStmt(lit(3))]));
-assertStmt(";", emptyStmt);
-assertStmt("if (foo) throw 42;", ifStmt(ident("foo"), throwStmt(lit(42)), null));
-assertStmt("if (foo) throw 42; else true;", ifStmt(ident("foo"), throwStmt(lit(42)), exprStmt(lit(true))));
-assertStmt("if (foo) { throw 1; throw 2; throw 3; }",
-           ifStmt(ident("foo"),
-                  blockStmt([throwStmt(lit(1)), throwStmt(lit(2)), throwStmt(lit(3))]),
-                  null));
-assertStmt("if (foo) { throw 1; throw 2; throw 3; } else true;",
-           ifStmt(ident("foo"),
-                  blockStmt([throwStmt(lit(1)), throwStmt(lit(2)), throwStmt(lit(3))]),
-                  exprStmt(lit(true))));
-assertStmt("foo: for(;;) break foo;", labStmt(ident("foo"), forStmt(null, null, null, breakStmt(ident("foo")))));
-assertStmt("foo: for(;;) continue foo;", labStmt(ident("foo"), forStmt(null, null, null, continueStmt(ident("foo")))));
-assertStmt("with (obj) { }", withStmt(ident("obj"), blockStmt([])));
-assertStmt("with (obj) { obj; }", withStmt(ident("obj"), blockStmt([exprStmt(ident("obj"))])));
-assertStmt("while (foo) { }", whileStmt(ident("foo"), blockStmt([])));
-assertStmt("while (foo) { foo; }", whileStmt(ident("foo"), blockStmt([exprStmt(ident("foo"))])));
-assertStmt("do { } while (foo);", doStmt(blockStmt([]), ident("foo")));
-assertStmt("do { foo; } while (foo)", doStmt(blockStmt([exprStmt(ident("foo"))]), ident("foo")));
-assertStmt("switch (foo) { case 1: 1; break; case 2: 2; break; default: 3; }",
-           switchStmt(ident("foo"),
-                      [ caseClause(lit(1), [ exprStmt(lit(1)), breakStmt(null) ]),
-                        caseClause(lit(2), [ exprStmt(lit(2)), breakStmt(null) ]),
-                        defaultClause([ exprStmt(lit(3)) ]) ]));
-assertStmt("switch (foo) { case 1: 1; break; case 2: 2; break; default: 3; case 42: 42; }",
-           switchStmt(ident("foo"),
-                      [ caseClause(lit(1), [ exprStmt(lit(1)), breakStmt(null) ]),
-                        caseClause(lit(2), [ exprStmt(lit(2)), breakStmt(null) ]),
-                        defaultClause([ exprStmt(lit(3)) ]),
-                        caseClause(lit(42), [ exprStmt(lit(42)) ]) ]));
-assertStmt("try { } catch (e) { }",
-           tryStmt(blockStmt([]),
-                   [],
-                   [ catchClause(ident("e"), null, blockStmt([])) ],
-                   null));
-assertStmt("try { } catch (e) { } finally { }",
-           tryStmt(blockStmt([]),
-                   [],
-                   [ catchClause(ident("e"), null, blockStmt([])) ],
-                   blockStmt([])));
-assertStmt("try { } finally { }",
-           tryStmt(blockStmt([]),
-                   [],
-                   [],
-                   blockStmt([])));
-
-// redeclarations (TOK_NAME nodes with lexdef)
-
-assertStmt("function f() { function g() { } function g() { } }",
-           funDecl(ident("f"), [], blockStmt([funDecl(ident("g"), [], blockStmt([])),
-                                              funDecl(ident("g"), [], blockStmt([]))])));
-
-assertStmt("function f() { function g() { } function g() { return 42 } }",
-           funDecl(ident("f"), [], blockStmt([funDecl(ident("g"), [], blockStmt([])),
-                                              funDecl(ident("g"), [], blockStmt([returnStmt(lit(42))]))])));
-
-assertStmt("function f() { var x = 42; var x = 43; }",
-           funDecl(ident("f"), [], blockStmt([varDecl([declarator(ident("x"),lit(42))]),
-                                              varDecl([declarator(ident("x"),lit(43))])])));
-
-// getters and setters
-
- assertExpr("({ get x() { return 42 } })",
-            objExpr([ objProp(ident("x"),
-                              funExpr(null, [], blockStmt([returnStmt(lit(42))])),
-                              "get" ) ]));
- assertExpr("({ set x(v) { return 42 } })",
-            objExpr([ objProp(ident("x"),
-                              funExpr(null, [ident("v")], blockStmt([returnStmt(lit(42))])),
-                              "set" ) ]));
-
-}
-
-exports.testReflect = testReflect;
-
-}(typeof exports === 'undefined' ? this : exports));
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/run.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/run.js
deleted file mode 100644
index 0f08f1575b1..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/run.js
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
-  Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
-  Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-/*jslint node:true */
-
-(function () {
-    'use strict';
-
-    var child = require('child_process'),
-        nodejs = '"' + process.execPath + '"',
-        ret = 0,
-        suites,
-        index;
-
-    suites = [
-        'runner',
-        'compat',
-        'parselibs'
-    ];
-
-    function nextTest() {
-        var suite = suites[index];
-
-        if (index < suites.length) {
-            child.exec(nodejs + ' ./test/' + suite + '.js', function (err, stdout, stderr) {
-                if (stdout) {
-                    process.stdout.write(suite + ': ' + stdout);
-                }
-                if (stderr) {
-                    process.stderr.write(suite + ': ' + stderr);
-                }
-                if (err) {
-                    ret = err.code;
-                }
-                index += 1;
-                nextTest();
-            });
-        } else {
-            process.exit(ret);
-        }
-    }
-
-    index = 0;
-    nextTest();
-}());
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/runner.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/runner.js
deleted file mode 100644
index fe71f3dbeca..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/runner.js
+++ /dev/null
@@ -1,495 +0,0 @@
-/*
-  Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
-  Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
-  Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
-  Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
-  Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
-  Copyright (C) 2011 Yusuke Suzuki <utatane.tea@gmail.com>
-  Copyright (C) 2011 Arpad Borsos <arpad.borsos@googlemail.com>
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-/*jslint browser:true node:true */
-/*global esprima:true, testFixture:true */
-
-var runTests;
-
-// Special handling for regular expression literal since we need to
-// convert it to a string literal, otherwise it will be decoded
-// as object "{}" and the regular expression would be lost.
-function adjustRegexLiteral(key, value) {
-    'use strict';
-    if (key === 'value' && value instanceof RegExp) {
-        value = value.toString();
-    }
-    return value;
-}
-
-function NotMatchingError(expected, actual) {
-    'use strict';
-    Error.call(this, 'Expected ');
-    this.expected = expected;
-    this.actual = actual;
-}
-NotMatchingError.prototype = new Error();
-
-function errorToObject(e) {
-    'use strict';
-    var msg = e.toString();
-
-    // Opera 9.64 produces an non-standard string in toString().
-    if (msg.substr(0, 6) !== 'Error:') {
-        if (typeof e.message === 'string') {
-            msg = 'Error: ' + e.message;
-        }
-    }
-
-    return {
-        index: e.index,
-        lineNumber: e.lineNumber,
-        column: e.column,
-        message: msg
-    };
-}
-
-function sortedObject(o) {
-    if (o === null) {
-        return o;
-    }
-    if (o instanceof Array) {
-        return o.map(sortedObject);
-    }
-    if (typeof o !== 'object') {
-        return o;
-    }
-    if (o instanceof RegExp) {
-        return o;
-    }
-    var keys = Object.keys(o);
-    var result = {
-        range: undefined,
-        loc: undefined
-    };
-    keys.forEach(function (key) {
-        if (o.hasOwnProperty(key)){
-            result[key] = sortedObject(o[key]);
-        }
-    });
-    return result;
-}
-
-function hasAttachedComment(syntax) {
-    var key;
-    for (key in syntax) {
-        if (key === 'leadingComments' || key === 'trailingComments') {
-            return true;
-        }
-       if (typeof syntax[key] === 'object' && syntax[key] !== null) {
-           if (hasAttachedComment(syntax[key])) {
-               return true;
-           }
-       }
-    }
-    return false;
-}
-
-function testParse(esprima, code, syntax) {
-    'use strict';
-    var expected, tree, actual, options, StringObject, i, len, err;
-
-    // alias, so that JSLint does not complain.
-    StringObject = String;
-
-    options = {
-        comment: (typeof syntax.comments !== 'undefined'),
-        range: true,
-        loc: true,
-        tokens: (typeof syntax.tokens !== 'undefined'),
-        raw: true,
-        tolerant: (typeof syntax.errors !== 'undefined'),
-        source: null
-    };
-
-    if (options.comment) {
-        options.attachComment = hasAttachedComment(syntax);
-    }
-
-    if (typeof syntax.tokens !== 'undefined') {
-        if (syntax.tokens.length > 0) {
-            options.range = (typeof syntax.tokens[0].range !== 'undefined');
-            options.loc = (typeof syntax.tokens[0].loc !== 'undefined');
-        }
-    }
-
-    if (typeof syntax.comments !== 'undefined') {
-        if (syntax.comments.length > 0) {
-            options.range = (typeof syntax.comments[0].range !== 'undefined');
-            options.loc = (typeof syntax.comments[0].loc !== 'undefined');
-        }
-    }
-
-    if (options.loc) {
-        options.source = syntax.loc.source;
-    }
-
-    syntax = sortedObject(syntax);
-    expected = JSON.stringify(syntax, null, 4);
-    try {
-        // Some variations of the options.
-        tree = esprima.parse(code, { tolerant: options.tolerant });
-        tree = esprima.parse(code, { tolerant: options.tolerant, range: true });
-        tree = esprima.parse(code, { tolerant: options.tolerant, loc: true });
-
-        tree = esprima.parse(code, options);
-        tree = (options.comment || options.tokens || options.tolerant) ? tree : tree.body[0];
-
-        if (options.tolerant) {
-            for (i = 0, len = tree.errors.length; i < len; i += 1) {
-                tree.errors[i] = errorToObject(tree.errors[i]);
-            }
-        }
-        tree = sortedObject(tree);
-        actual = JSON.stringify(tree, adjustRegexLiteral, 4);
-
-        // Only to ensure that there is no error when using string object.
-        esprima.parse(new StringObject(code), options);
-
-    } catch (e) {
-        throw new NotMatchingError(expected, e.toString());
-    }
-    if (expected !== actual) {
-        throw new NotMatchingError(expected, actual);
-    }
-
-    function filter(key, value) {
-        if (key === 'value' && value instanceof RegExp) {
-            value = value.toString();
-        }
-        return (key === 'loc' || key === 'range') ? undefined : value;
-    }
-
-    if (options.tolerant) {
-        return;
-    }
-
-
-    // Check again without any location info.
-    options.range = false;
-    options.loc = false;
-    syntax = sortedObject(syntax);
-    expected = JSON.stringify(syntax, filter, 4);
-    try {
-        tree = esprima.parse(code, options);
-        tree = (options.comment || options.tokens) ? tree : tree.body[0];
-
-        if (options.tolerant) {
-            for (i = 0, len = tree.errors.length; i < len; i += 1) {
-                tree.errors[i] = errorToObject(tree.errors[i]);
-            }
-        }
-        tree = sortedObject(tree);
-        actual = JSON.stringify(tree, filter, 4);
-    } catch (e) {
-        throw new NotMatchingError(expected, e.toString());
-    }
-    if (expected !== actual) {
-        throw new NotMatchingError(expected, actual);
-    }
-}
-
-function testTokenize(esprima, code, tokens) {
-    'use strict';
-    var options, expected, actual, tree;
-
-    options = {
-        comment: true,
-        tolerant: true,
-        loc: true,
-        range: true
-    };
-
-    expected = JSON.stringify(tokens, null, 4);
-
-    try {
-        tree = esprima.tokenize(code, options);
-        actual = JSON.stringify(tree, null, 4);
-    } catch (e) {
-        throw new NotMatchingError(expected, e.toString());
-    }
-    if (expected !== actual) {
-        throw new NotMatchingError(expected, actual);
-    }
-}
-
-function testError(esprima, code, exception) {
-    'use strict';
-    var i, options, expected, actual, err, handleInvalidRegexFlag, tokenize;
-
-    // Different parsing options should give the same error.
-    options = [
-        {},
-        { comment: true },
-        { raw: true },
-        { raw: true, comment: true }
-    ];
-
-    // If handleInvalidRegexFlag is true, an invalid flag in a regular expression
-    // will throw an exception. In some old version V8, this is not the case
-    // and hence handleInvalidRegexFlag is false.
-    handleInvalidRegexFlag = false;
-    try {
-        'test'.match(new RegExp('[a-z]', 'x'));
-    } catch (e) {
-        handleInvalidRegexFlag = true;
-    }
-
-    exception.description = exception.message.replace(/Error: Line [0-9]+: /, '');
-
-    if (exception.tokenize) {
-        tokenize = true;
-        exception.tokenize = undefined;
-    }
-    expected = JSON.stringify(exception);
-
-    for (i = 0; i < options.length; i += 1) {
-
-        try {
-            if (tokenize) {
-                esprima.tokenize(code, options[i])
-            } else {
-                esprima.parse(code, options[i]);
-            }
-        } catch (e) {
-            err = errorToObject(e);
-            err.description = e.description;
-            actual = JSON.stringify(err);
-        }
-
-        if (expected !== actual) {
-
-            // Compensate for old V8 which does not handle invalid flag.
-            if (exception.message.indexOf('Invalid regular expression') > 0) {
-                if (typeof actual === 'undefined' && !handleInvalidRegexFlag) {
-                    return;
-                }
-            }
-
-            throw new NotMatchingError(expected, actual);
-        }
-
-    }
-}
-
-function testAPI(esprima, code, result) {
-    'use strict';
-    var expected, res, actual;
-
-    expected = JSON.stringify(result.result, null, 4);
-    try {
-        if (typeof result.property !== 'undefined') {
-            res = esprima[result.property];
-        } else {
-            res = esprima[result.call].apply(esprima, result.args);
-        }
-        actual = JSON.stringify(res, adjustRegexLiteral, 4);
-    } catch (e) {
-        throw new NotMatchingError(expected, e.toString());
-    }
-    if (expected !== actual) {
-        throw new NotMatchingError(expected, actual);
-    }
-}
-
-function runTest(esprima, code, result) {
-    'use strict';
-    if (result.hasOwnProperty('lineNumber')) {
-        testError(esprima, code, result);
-    } else if (result.hasOwnProperty('result')) {
-        testAPI(esprima, code, result);
-    } else if (result instanceof Array) {
-        testTokenize(esprima, code, result);
-    } else {
-        testParse(esprima, code, result);
-    }
-}
-
-if (typeof window !== 'undefined') {
-    // Run all tests in a browser environment.
-    runTests = function () {
-        'use strict';
-        var total = 0,
-            failures = 0,
-            category,
-            fixture,
-            source,
-            tick,
-            expected,
-            index,
-            len;
-
-        function setText(el, str) {
-            if (typeof el.innerText === 'string') {
-                el.innerText = str;
-            } else {
-                el.textContent = str;
-            }
-        }
-
-        function startCategory(category) {
-            var report, e;
-            report = document.getElementById('report');
-            e = document.createElement('h4');
-            setText(e, category);
-            report.appendChild(e);
-        }
-
-        function reportSuccess(code) {
-            var report, e;
-            report = document.getElementById('report');
-            e = document.createElement('pre');
-            e.setAttribute('class', 'code');
-            setText(e, code);
-            report.appendChild(e);
-        }
-
-        function reportFailure(code, expected, actual) {
-            var report, e;
-
-            report = document.getElementById('report');
-
-            e = document.createElement('p');
-            setText(e, 'Code:');
-            report.appendChild(e);
-
-            e = document.createElement('pre');
-            e.setAttribute('class', 'code');
-            setText(e, code);
-            report.appendChild(e);
-
-            e = document.createElement('p');
-            setText(e, 'Expected');
-            report.appendChild(e);
-
-            e = document.createElement('pre');
-            e.setAttribute('class', 'expected');
-            setText(e, expected);
-            report.appendChild(e);
-
-            e = document.createElement('p');
-            setText(e, 'Actual');
-            report.appendChild(e);
-
-            e = document.createElement('pre');
-            e.setAttribute('class', 'actual');
-            setText(e, actual);
-            report.appendChild(e);
-        }
-
-        setText(document.getElementById('version'), esprima.version);
-
-        tick = new Date();
-        for (category in testFixture) {
-            if (testFixture.hasOwnProperty(category)) {
-                startCategory(category);
-                fixture = testFixture[category];
-                for (source in fixture) {
-                    if (fixture.hasOwnProperty(source)) {
-                        expected = fixture[source];
-                        total += 1;
-                        try {
-                            runTest(esprima, source, expected);
-                            reportSuccess(source, JSON.stringify(expected, null, 4));
-                        } catch (e) {
-                            failures += 1;
-                            reportFailure(source, e.expected, e.actual);
-                        }
-                    }
-                }
-            }
-        }
-        tick = (new Date()) - tick;
-
-        if (failures > 0) {
-            document.getElementById('status').className = 'alert-box alert';
-            setText(document.getElementById('status'), total + ' tests. ' +
-                'Failures: ' + failures + '. ' + tick + ' ms.');
-        } else {
-            document.getElementById('status').className = 'alert-box success';
-            setText(document.getElementById('status'), total + ' tests. ' +
-                'No failure. ' + tick + ' ms.');
-        }
-    };
-} else {
-    (function () {
-        'use strict';
-
-        var esprima = require('../esprima'),
-            vm = require('vm'),
-            fs = require('fs'),
-            diff = require('json-diff').diffString,
-            total = 0,
-            failures = [],
-            tick = new Date(),
-            expected,
-            header;
-
-        vm.runInThisContext(fs.readFileSync(__dirname + '/test.js', 'utf-8'));
-
-        Object.keys(testFixture).forEach(function (category) {
-            Object.keys(testFixture[category]).forEach(function (source) {
-                total += 1;
-                expected = testFixture[category][source];
-                try {
-                    runTest(esprima, source, expected);
-                } catch (e) {
-                    e.source = source;
-                    failures.push(e);
-                }
-            });
-        });
-        tick = (new Date()) - tick;
-
-        header = total + ' tests. ' + failures.length + ' failures. ' +
-            tick + ' ms';
-        if (failures.length) {
-            console.error(header);
-            failures.forEach(function (failure) {
-                try {
-                    var expectedObject = JSON.parse(failure.expected);
-                    var actualObject = JSON.parse(failure.actual);
-
-                    console.error(failure.source + ': Expected\n    ' +
-                        failure.expected.split('\n').join('\n    ') +
-                        '\nto match\n    ' + failure.actual + '\nDiff:\n' +
-                        diff(expectedObject, actualObject));
-                } catch (ex) {
-                    console.error(failure.source + ': Expected\n    ' +
-                        failure.expected.split('\n').join('\n    ') +
-                        '\nto match\n    ' + failure.actual);
-                }
-            });
-        } else {
-            console.log(header);
-        }
-        process.exit(failures.length === 0 ? 0 : 1);
-    }());
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/test.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/test.js
deleted file mode 100644
index d9872d907b7..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/esprima/test/test.js
+++ /dev/null
@@ -1,25593 +0,0 @@
-/*
-  Copyright (C) 2013 Mathias Bynens <mathias@qiwi.be>
-  Copyright (C) 2012 Ariya Hidayat <ariya.hidayat@gmail.com>
-  Copyright (C) 2012 Joost-Wim Boekesteijn <joost-wim@boekesteijn.nl>
-  Copyright (C) 2012 Yusuke Suzuki <utatane.tea@gmail.com>
-  Copyright (C) 2012 Arpad Borsos <arpad.borsos@googlemail.com>
-  Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
-  Copyright (C) 2011 Yusuke Suzuki <utatane.tea@gmail.com>
-  Copyright (C) 2011 Arpad Borsos <arpad.borsos@googlemail.com>
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in the
-      documentation and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-var testFixture = {
-
-    'Primary Expression': {
-
-        'this\n': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'ThisExpression',
-                    range: [0, 4],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 4 }
-                    }
-                },
-                range: [0, 4],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 4 }
-                }
-            }],
-            range: [0, 4],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 4 }
-            },
-            tokens: [{
-                type: 'Keyword',
-                value: 'this',
-                range: [0, 4],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 4 }
-                }
-            }]
-        },
-
-        'null\n': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'Literal',
-                    value: null,
-                    raw: 'null',
-                    range: [0, 4],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 4 }
-                    }
-                },
-                range: [0, 4],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 4 }
-                }
-            }],
-            range: [0, 4],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 4 }
-            },
-            tokens: [{
-                type: 'Null',
-                value: 'null',
-                range: [0, 4],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 4 }
-                }
-            }]
-        },
-
-        '\n    42\n\n': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'Literal',
-                    value: 42,
-                    raw: '42',
-                    range: [5, 7],
-                    loc: {
-                        start: { line: 2, column: 4 },
-                        end: { line: 2, column: 6 }
-                    }
-                },
-                range: [5, 7],
-                loc: {
-                    start: { line: 2, column: 4 },
-                    end: { line: 2, column: 6 }
-                }
-            }],
-            range: [5, 7],
-            loc: {
-                start: { line: 2, column: 4 },
-                end: { line: 2, column: 6 }
-            },
-            tokens: [{
-                type: 'Numeric',
-                value: '42',
-                range: [5, 7],
-                loc: {
-                    start: { line: 2, column: 4 },
-                    end: { line: 2, column: 6 }
-                }
-            }]
-        },
-
-        '(1 + 2 ) * 3': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'BinaryExpression',
-                operator: '*',
-                left: {
-                    type: 'BinaryExpression',
-                    operator: '+',
-                    left: {
-                        type: 'Literal',
-                        value: 1,
-                        raw: '1',
-                        range: [1, 2],
-                        loc: {
-                            start: { line: 1, column: 1 },
-                            end: { line: 1, column: 2 }
-                        }
-                    },
-                    right: {
-                        type: 'Literal',
-                        value: 2,
-                        raw: '2',
-                        range: [5, 6],
-                        loc: {
-                            start: { line: 1, column: 5 },
-                            end: { line: 1, column: 6 }
-                        }
-                    },
-                    range: [1, 6],
-                    loc: {
-                        start: { line: 1, column: 1 },
-                        end: { line: 1, column: 6 }
-                    }
-                },
-                right: {
-                    type: 'Literal',
-                    value: 3,
-                    raw: '3',
-                    range: [11, 12],
-                    loc: {
-                        start: { line: 1, column: 11 },
-                        end: { line: 1, column: 12 }
-                    }
-                },
-                range: [0, 12],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 12 }
-                }
-            },
-            range: [0, 12],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 12 }
-            }
-        }
-
-    },
-
-    'Grouping Operator': {
-
-        '(1) + (2  ) + 3': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'BinaryExpression',
-                operator: '+',
-                left: {
-                    type: 'BinaryExpression',
-                    operator: '+',
-                    left: {
-                        type: 'Literal',
-                        value: 1,
-                        raw: '1',
-                        range: [1, 2],
-                        loc: {
-                            start: { line: 1, column: 1 },
-                            end: { line: 1, column: 2 }
-                        }
-                    },
-                    right: {
-                        type: 'Literal',
-                        value: 2,
-                        raw: '2',
-                        range: [7, 8],
-                        loc: {
-                            start: { line: 1, column: 7 },
-                            end: { line: 1, column: 8 }
-                        }
-                    },
-                    range: [0, 11],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 11 }
-                    }
-                },
-                right: {
-                    type: 'Literal',
-                    value: 3,
-                    raw: '3',
-                    range: [14, 15],
-                    loc: {
-                        start: { line: 1, column: 14 },
-                        end: { line: 1, column: 15 }
-                    }
-                },
-                range: [0, 15],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 15 }
-                }
-            },
-            range: [0, 15],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 15 }
-            }
-        },
-
-        '4 + 5 << (6)': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'BinaryExpression',
-                operator: '<<',
-                left: {
-                    type: 'BinaryExpression',
-                    operator: '+',
-                    left: {
-                        type: 'Literal',
-                        value: 4,
-                        raw: '4',
-                        range: [0, 1],
-                        loc: {
-                            start: { line: 1, column: 0 },
-                            end: { line: 1, column: 1 }
-                        }
-                    },
-                    right: {
-                        type: 'Literal',
-                        value: 5,
-                        raw: '5',
-                        range: [4, 5],
-                        loc: {
-                            start: { line: 1, column: 4 },
-                            end: { line: 1, column: 5 }
-                        }
-                    },
-                    range: [0, 5],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 5 }
-                    }
-                },
-                right: {
-                    type: 'Literal',
-                    value: 6,
-                    raw: '6',
-                    range: [10, 11],
-                    loc: {
-                        start: { line: 1, column: 10 },
-                        end: { line: 1, column: 11 }
-                    }
-                },
-                range: [0, 12],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 12 }
-                }
-            },
-            range: [0, 12],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 12 }
-            }
-        }
-
-    },
-
-    'Array Initializer': {
-
-        'x = []': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'AssignmentExpression',
-                    operator: '=',
-                    left: {
-                        type: 'Identifier',
-                        name: 'x',
-                        range: [0, 1],
-                        loc: {
-                            start: { line: 1, column: 0 },
-                            end: { line: 1, column: 1 }
-                        }
-                    },
-                    right: {
-                        type: 'ArrayExpression',
-                        elements: [],
-                        range: [4, 6],
-                        loc: {
-                            start: { line: 1, column: 4 },
-                            end: { line: 1, column: 6 }
-                        }
-                    },
-                    range: [0, 6],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 6 }
-                    }
-                },
-                range: [0, 6],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 6 }
-                }
-            }],
-            range: [0, 6],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 6 }
-            },
-            tokens: [{
-                type: 'Identifier',
-                value: 'x',
-                range: [0, 1],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 1 }
-                }
-            }, {
-                type: 'Punctuator',
-                value: '=',
-                range: [2, 3],
-                loc: {
-                    start: { line: 1, column: 2 },
-                    end: { line: 1, column: 3 }
-                }
-            }, {
-                type: 'Punctuator',
-                value: '[',
-                range: [4, 5],
-                loc: {
-                    start: { line: 1, column: 4 },
-                    end: { line: 1, column: 5 }
-                }
-            }, {
-                type: 'Punctuator',
-                value: ']',
-                range: [5, 6],
-                loc: {
-                    start: { line: 1, column: 5 },
-                    end: { line: 1, column: 6 }
-                }
-            }]
-        },
-
-        'x = [ ]': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'AssignmentExpression',
-                operator: '=',
-                left: {
-                    type: 'Identifier',
-                    name: 'x',
-                    range: [0, 1],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 1 }
-                    }
-                },
-                right: {
-                    type: 'ArrayExpression',
-                    elements: [],
-                    range: [4, 7],
-                    loc: {
-                        start: { line: 1, column: 4 },
-                        end: { line: 1, column: 7 }
-                    }
-                },
-                range: [0, 7],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 7 }
-                }
-            },
-            range: [0, 7],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 7 }
-            }
-        },
-
-        'x = [ 42 ]': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'AssignmentExpression',
-                operator: '=',
-                left: {
-                    type: 'Identifier',
-                    name: 'x',
-                    range: [0, 1],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 1 }
-                    }
-                },
-                right: {
-                    type: 'ArrayExpression',
-                    elements: [{
-                        type: 'Literal',
-                        value: 42,
-                        raw: '42',
-                        range: [6, 8],
-                        loc: {
-                            start: { line: 1, column: 6 },
-                            end: { line: 1, column: 8 }
-                        }
-                    }],
-                    range: [4, 10],
-                    loc: {
-                        start: { line: 1, column: 4 },
-                        end: { line: 1, column: 10 }
-                    }
-                },
-                range: [0, 10],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 10 }
-                }
-            },
-            range: [0, 10],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 10 }
-            }
-        },
-
-        'x = [ 42, ]': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'AssignmentExpression',
-                operator: '=',
-                left: {
-                    type: 'Identifier',
-                    name: 'x',
-                    range: [0, 1],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 1 }
-                    }
-                },
-                right: {
-                    type: 'ArrayExpression',
-                    elements: [{
-                        type: 'Literal',
-                        value: 42,
-                        raw: '42',
-                        range: [6, 8],
-                        loc: {
-                            start: { line: 1, column: 6 },
-                            end: { line: 1, column: 8 }
-                        }
-                    }],
-                    range: [4, 11],
-                    loc: {
-                        start: { line: 1, column: 4 },
-                        end: { line: 1, column: 11 }
-                    }
-                },
-                range: [0, 11],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 11 }
-                }
-            },
-            range: [0, 11],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 11 }
-            }
-        },
-
-        'x = [ ,, 42 ]': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'AssignmentExpression',
-                operator: '=',
-                left: {
-                    type: 'Identifier',
-                    name: 'x',
-                    range: [0, 1],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 1 }
-                    }
-                },
-                right: {
-                    type: 'ArrayExpression',
-                    elements: [
-                        null,
-                        null,
-                        {
-                            type: 'Literal',
-                            value: 42,
-                            raw: '42',
-                            range: [9, 11],
-                            loc: {
-                                start: { line: 1, column: 9 },
-                                end: { line: 1, column: 11 }
-                            }
-                        }],
-                    range: [4, 13],
-                    loc: {
-                        start: { line: 1, column: 4 },
-                        end: { line: 1, column: 13 }
-                    }
-                },
-                range: [0, 13],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 13 }
-                }
-            },
-            range: [0, 13],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 13 }
-            }
-        },
-
-        'x = [ 1, 2, 3, ]': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'AssignmentExpression',
-                operator: '=',
-                left: {
-                    type: 'Identifier',
-                    name: 'x',
-                    range: [0, 1],
-                    loc: {
-                        start: { line: 1, column: 0 },
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-                            end: { line: 1, column: 35 }
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-                    loc: {
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-                        end: { line: 1, column: 36 }
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-                    end: { line: 1, column: 38 }
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-            },
-            rest: null,
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-            expression: false,
-            range: [0, 38],
-            loc: {
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-                end: { line: 1, column: 38 }
-            }
-        }
-
-    },
-
-    'Automatic semicolon insertion': {
-
-        '{ x\n++y }': {
-            type: 'BlockStatement',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'Identifier',
-                    name: 'x',
-                    range: [2, 3],
-                    loc: {
-                        start: { line: 1, column: 2 },
-                        end: { line: 1, column: 3 }
-                    }
-                },
-                range: [2, 3],
-                loc: {
-                    start: { line: 1, column: 2 },
-                    end: { line: 1, column: 3 }
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-            }, {
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-                expression: {
-                    type: 'UpdateExpression',
-                    operator: '++',
-                    argument: {
-                        type: 'Identifier',
-                        name: 'y',
-                        range: [6, 7],
-                        loc: {
-                            start: { line: 2, column: 2 },
-                            end: { line: 2, column: 3 }
-                        }
-                    },
-                    prefix: true,
-                    range: [4, 7],
-                    loc: {
-                        start: { line: 2, column: 0 },
-                        end: { line: 2, column: 3 }
-                    }
-                },
-                range: [4, 8],
-                loc: {
-                    start: { line: 2, column: 0 },
-                    end: { line: 2, column: 4 }
-                }
-            }],
-            range: [0, 9],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 2, column: 5 }
-            }
-        },
-
-        '{ x\n--y }': {
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-            body: [{
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-                expression: {
-                    type: 'Identifier',
-                    name: 'x',
-                    range: [2, 3],
-                    loc: {
-                        start: { line: 1, column: 2 },
-                        end: { line: 1, column: 3 }
-                    }
-                },
-                range: [2, 3],
-                loc: {
-                    start: { line: 1, column: 2 },
-                    end: { line: 1, column: 3 }
-                }
-            }, {
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'UpdateExpression',
-                    operator: '--',
-                    argument: {
-                        type: 'Identifier',
-                        name: 'y',
-                        range: [6, 7],
-                        loc: {
-                            start: { line: 2, column: 2 },
-                            end: { line: 2, column: 3 }
-                        }
-                    },
-                    prefix: true,
-                    range: [4, 7],
-                    loc: {
-                        start: { line: 2, column: 0 },
-                        end: { line: 2, column: 3 }
-                    }
-                },
-                range: [4, 8],
-                loc: {
-                    start: { line: 2, column: 0 },
-                    end: { line: 2, column: 4 }
-                }
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-            range: [0, 9],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 2, column: 5 }
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-        },
-
-        'var x /* comment */;': {
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-            declarations: [{
-                type: 'VariableDeclarator',
-                id: {
-                    type: 'Identifier',
-                    name: 'x',
-                    range: [4, 5],
-                    loc: {
-                        start: { line: 1, column: 4 },
-                        end: { line: 1, column: 5 }
-                    }
-                },
-                init: null,
-                range: [4, 5],
-                loc: {
-                    start: { line: 1, column: 4 },
-                    end: { line: 1, column: 5 }
-                }
-            }],
-            kind: 'var',
-            range: [0, 20],
-            loc: {
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-                end: { line: 1, column: 20 }
-            }
-        },
-
-        '{ var x = 14, y = 3\nz; }': {
-            type: 'BlockStatement',
-            body: [{
-                type: 'VariableDeclaration',
-                declarations: [{
-                    type: 'VariableDeclarator',
-                    id: {
-                        type: 'Identifier',
-                        name: 'x',
-                        range: [6, 7],
-                        loc: {
-                            start: { line: 1, column: 6 },
-                            end: { line: 1, column: 7 }
-                        }
-                    },
-                    init: {
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-                        value: 14,
-                        raw: '14',
-                        range: [10, 12],
-                        loc: {
-                            start: { line: 1, column: 10 },
-                            end: { line: 1, column: 12 }
-                        }
-                    },
-                    range: [6, 12],
-                    loc: {
-                        start: { line: 1, column: 6 },
-                        end: { line: 1, column: 12 }
-                    }
-                }, {
-                    type: 'VariableDeclarator',
-                    id: {
-                        type: 'Identifier',
-                        name: 'y',
-                        range: [14, 15],
-                        loc: {
-                            start: { line: 1, column: 14 },
-                            end: { line: 1, column: 15 }
-                        }
-                    },
-                    init: {
-                        type: 'Literal',
-                        value: 3,
-                        raw: '3',
-                        range: [18, 19],
-                        loc: {
-                            start: { line: 1, column: 18 },
-                            end: { line: 1, column: 19 }
-                        }
-                    },
-                    range: [14, 19],
-                    loc: {
-                        start: { line: 1, column: 14 },
-                        end: { line: 1, column: 19 }
-                    }
-                }],
-                kind: 'var',
-                range: [2, 19],
-                loc: {
-                    start: { line: 1, column: 2 },
-                    end: { line: 1, column: 19 }
-                }
-            }, {
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'Identifier',
-                    name: 'z',
-                    range: [20, 21],
-                    loc: {
-                        start: { line: 2, column: 0 },
-                        end: { line: 2, column: 1 }
-                    }
-                },
-                range: [20, 22],
-                loc: {
-                    start: { line: 2, column: 0 },
-                    end: { line: 2, column: 2 }
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-            }],
-            range: [0, 24],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 2, column: 4 }
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-        },
-
-        'while (true) { continue\nthere; }': {
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-            test: {
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-                value: true,
-                raw: 'true',
-                range: [7, 11],
-                loc: {
-                    start: { line: 1, column: 7 },
-                    end: { line: 1, column: 11 }
-                }
-            },
-            body: {
-                type: 'BlockStatement',
-                body: [{
-                    type: 'ContinueStatement',
-                    label: null,
-                    range: [15, 23],
-                    loc: {
-                        start: { line: 1, column: 15 },
-                        end: { line: 1, column: 23 }
-                    }
-                }, {
-                    type: 'ExpressionStatement',
-                    expression: {
-                        type: 'Identifier',
-                        name: 'there',
-                        range: [24, 29],
-                        loc: {
-                            start: { line: 2, column: 0 },
-                            end: { line: 2, column: 5 }
-                        }
-                    },
-                    range: [24, 30],
-                    loc: {
-                        start: { line: 2, column: 0 },
-                        end: { line: 2, column: 6 }
-                    }
-                }],
-                range: [13, 32],
-                loc: {
-                    start: { line: 1, column: 13 },
-                    end: { line: 2, column: 8 }
-                }
-            },
-            range: [0, 32],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 2, column: 8 }
-            }
-        },
-
-        'while (true) { continue // Comment\nthere; }': {
-            type: 'WhileStatement',
-            test: {
-                type: 'Literal',
-                value: true,
-                raw: 'true',
-                range: [7, 11],
-                loc: {
-                    start: { line: 1, column: 7 },
-                    end: { line: 1, column: 11 }
-                }
-            },
-            body: {
-                type: 'BlockStatement',
-                body: [{
-                    type: 'ContinueStatement',
-                    label: null,
-                    range: [15, 23],
-                    loc: {
-                        start: { line: 1, column: 15 },
-                        end: { line: 1, column: 23 }
-                    }
-                }, {
-                    type: 'ExpressionStatement',
-                    expression: {
-                        type: 'Identifier',
-                        name: 'there',
-                        range: [35, 40],
-                        loc: {
-                            start: { line: 2, column: 0 },
-                            end: { line: 2, column: 5 }
-                        }
-                    },
-                    range: [35, 41],
-                    loc: {
-                        start: { line: 2, column: 0 },
-                        end: { line: 2, column: 6 }
-                    }
-                }],
-                range: [13, 43],
-                loc: {
-                    start: { line: 1, column: 13 },
-                    end: { line: 2, column: 8 }
-                }
-            },
-            range: [0, 43],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 2, column: 8 }
-            }
-        },
-
-        'while (true) { continue /* Multiline\nComment */there; }': {
-            type: 'WhileStatement',
-            test: {
-                type: 'Literal',
-                value: true,
-                raw: 'true',
-                range: [7, 11],
-                loc: {
-                    start: { line: 1, column: 7 },
-                    end: { line: 1, column: 11 }
-                }
-            },
-            body: {
-                type: 'BlockStatement',
-                body: [{
-                    type: 'ContinueStatement',
-                    label: null,
-                    range: [15, 23],
-                    loc: {
-                        start: { line: 1, column: 15 },
-                        end: { line: 1, column: 23 }
-                    }
-                }, {
-                    type: 'ExpressionStatement',
-                    expression: {
-                        type: 'Identifier',
-                        name: 'there',
-                        range: [47, 52],
-                        loc: {
-                            start: { line: 2, column: 10 },
-                            end: { line: 2, column: 15 }
-                        }
-                    },
-                    range: [47, 53],
-                    loc: {
-                        start: { line: 2, column: 10 },
-                        end: { line: 2, column: 16 }
-                    }
-                }],
-                range: [13, 55],
-                loc: {
-                    start: { line: 1, column: 13 },
-                    end: { line: 2, column: 18 }
-                }
-            },
-            range: [0, 55],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 2, column: 18 }
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-        },
-
-        'while (true) { break\nthere; }': {
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-                type: 'Literal',
-                value: true,
-                raw: 'true',
-                range: [7, 11],
-                loc: {
-                    start: { line: 1, column: 7 },
-                    end: { line: 1, column: 11 }
-                }
-            },
-            body: {
-                type: 'BlockStatement',
-                body: [{
-                    type: 'BreakStatement',
-                    label: null,
-                    range: [15, 20],
-                    loc: {
-                        start: { line: 1, column: 15 },
-                        end: { line: 1, column: 20 }
-                    }
-                }, {
-                    type: 'ExpressionStatement',
-                    expression: {
-                        type: 'Identifier',
-                        name: 'there',
-                        range: [21, 26],
-                        loc: {
-                            start: { line: 2, column: 0 },
-                            end: { line: 2, column: 5 }
-                        }
-                    },
-                    range: [21, 27],
-                    loc: {
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-                        end: { line: 2, column: 6 }
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-                loc: {
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-            range: [0, 29],
-            loc: {
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-
-        'while (true) { break // Comment\nthere; }': {
-            type: 'WhileStatement',
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-                type: 'Literal',
-                value: true,
-                raw: 'true',
-                range: [7, 11],
-                loc: {
-                    start: { line: 1, column: 7 },
-                    end: { line: 1, column: 11 }
-                }
-            },
-            body: {
-                type: 'BlockStatement',
-                body: [{
-                    type: 'BreakStatement',
-                    label: null,
-                    range: [15, 20],
-                    loc: {
-                        start: { line: 1, column: 15 },
-                        end: { line: 1, column: 20 }
-                    }
-                }, {
-                    type: 'ExpressionStatement',
-                    expression: {
-                        type: 'Identifier',
-                        name: 'there',
-                        range: [32, 37],
-                        loc: {
-                            start: { line: 2, column: 0 },
-                            end: { line: 2, column: 5 }
-                        }
-                    },
-                    range: [32, 38],
-                    loc: {
-                        start: { line: 2, column: 0 },
-                        end: { line: 2, column: 6 }
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-                range: [13, 40],
-                loc: {
-                    start: { line: 1, column: 13 },
-                    end: { line: 2, column: 8 }
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-            loc: {
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-                end: { line: 2, column: 8 }
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-
-        'while (true) { break /* Multiline\nComment */there; }': {
-            type: 'WhileStatement',
-            test: {
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-                value: true,
-                raw: 'true',
-                range: [7, 11],
-                loc: {
-                    start: { line: 1, column: 7 },
-                    end: { line: 1, column: 11 }
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-            },
-            body: {
-                type: 'BlockStatement',
-                body: [{
-                    type: 'BreakStatement',
-                    label: null,
-                    range: [15, 20],
-                    loc: {
-                        start: { line: 1, column: 15 },
-                        end: { line: 1, column: 20 }
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-                }, {
-                    type: 'ExpressionStatement',
-                    expression: {
-                        type: 'Identifier',
-                        name: 'there',
-                        range: [44, 49],
-                        loc: {
-                            start: { line: 2, column: 10 },
-                            end: { line: 2, column: 15 }
-                        }
-                    },
-                    range: [44, 50],
-                    loc: {
-                        start: { line: 2, column: 10 },
-                        end: { line: 2, column: 16 }
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-                }],
-                range: [13, 52],
-                loc: {
-                    start: { line: 1, column: 13 },
-                    end: { line: 2, column: 18 }
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-            },
-            range: [0, 52],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 2, column: 18 }
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-        },
-
-        '(function(){ return\nx; })': {
-            type: 'ExpressionStatement',
-            expression: {
-                type: 'FunctionExpression',
-                id: null,
-                params: [],
-                defaults: [],
-                body: {
-                    type: 'BlockStatement',
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-                            type: 'ReturnStatement',
-                            argument: null,
-                            range: [13, 19],
-                            loc: {
-                                start: { line: 1, column: 13 },
-                                end: { line: 1, column: 19 }
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-                        {
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-                                    end: { line: 2, column: 1 }
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-                            loc: {
-                                start: { line: 2, column: 0 },
-                                end: { line: 2, column: 2 }
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-                        end: { line: 2, column: 4 }
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-
-        '(function(){ return // Comment\nx; })': {
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-                type: 'FunctionExpression',
-                id: null,
-                params: [],
-                defaults: [],
-                body: {
-                    type: 'BlockStatement',
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-                        {
-                            type: 'ReturnStatement',
-                            argument: null,
-                            range: [13, 19],
-                            loc: {
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-                        {
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-                            expression: {
-                                type: 'Identifier',
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-                                range: [31, 32],
-                                loc: {
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-                                    end: { line: 2, column: 1 }
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-                            loc: {
-                                start: { line: 2, column: 0 },
-                                end: { line: 2, column: 2 }
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-                    loc: {
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-                        end: { line: 2, column: 4 }
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-                },
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-                expression: false,
-                range: [1, 35],
-                loc: {
-                    start: { line: 1, column: 1 },
-                    end: { line: 2, column: 4 }
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-                end: { line: 2, column: 5 }
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-
-        '(function(){ return/* Multiline\nComment */x; })': {
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-                defaults: [],
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-                        {
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-                                range: [42, 43],
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-                                    end: { line: 2, column: 11 }
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-                            },
-                            range: [42, 44],
-                            loc: {
-                                start: { line: 2, column: 10 },
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-                },
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-                generator: false,
-                expression: false,
-                range: [1, 46],
-                loc: {
-                    start: { line: 1, column: 1 },
-                    end: { line: 2, column: 14 }
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-            loc: {
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-
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-                    loc: {
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-                        end: { line: 2, column: 5 }
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-        '{ throw error// Comment\nerror; }': {
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-                    name: 'error',
-                    range: [8, 13],
-                    loc: {
-                        start: { line: 1, column: 8 },
-                        end: { line: 1, column: 13 }
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-                range: [2, 13],
-                loc: {
-                    start: { line: 1, column: 2 },
-                    end: { line: 1, column: 13 }
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-            }, {
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'Identifier',
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-                    range: [24, 29],
-                    loc: {
-                        start: { line: 2, column: 0 },
-                        end: { line: 2, column: 5 }
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-                range: [24, 30],
-                loc: {
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-                    end: { line: 2, column: 6 }
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-            }],
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-            loc: {
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-                end: { line: 2, column: 8 }
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-
-        '{ throw error/* Multiline\nComment */error; }': {
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-                type: 'ThrowStatement',
-                argument: {
-                    type: 'Identifier',
-                    name: 'error',
-                    range: [8, 13],
-                    loc: {
-                        start: { line: 1, column: 8 },
-                        end: { line: 1, column: 13 }
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-                range: [2, 13],
-                loc: {
-                    start: { line: 1, column: 2 },
-                    end: { line: 1, column: 13 }
-                }
-            }, {
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'Identifier',
-                    name: 'error',
-                    range: [36, 41],
-                    loc: {
-                        start: { line: 2, column: 10 },
-                        end: { line: 2, column: 15 }
-                    }
-                },
-                range: [36, 42],
-                loc: {
-                    start: { line: 2, column: 10 },
-                    end: { line: 2, column: 16 }
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-            range: [0, 44],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 2, column: 18 }
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-            message: 'Error: Line 1: Unexpected token {'
-        },
-
-        '({ get: g(d) { } })': {
-            index: 13,
-            lineNumber: 1,
-            column: 14,
-            message: 'Error: Line 1: Unexpected token {'
-        },
-
-        '({ get i() { }, i: 42 })': {
-            index: 21,
-            lineNumber: 1,
-            column: 22,
-            message: 'Error: Line 1: Object literal may not have data and accessor property with the same name'
-        },
-
-        '({ i: 42, get i() { } })': {
-            index: 21,
-            lineNumber: 1,
-            column: 22,
-            message: 'Error: Line 1: Object literal may not have data and accessor property with the same name'
-        },
-
-        '({ set i(x) { }, i: 42 })': {
-            index: 22,
-            lineNumber: 1,
-            column: 23,
-            message: 'Error: Line 1: Object literal may not have data and accessor property with the same name'
-        },
-
-        '({ i: 42, set i(x) { } })': {
-            index: 22,
-            lineNumber: 1,
-            column: 23,
-            message: 'Error: Line 1: Object literal may not have data and accessor property with the same name'
-        },
-
-        '({ get i() { }, get i() { } })': {
-            index: 27,
-            lineNumber: 1,
-            column: 28,
-            message: 'Error: Line 1: Object literal may not have multiple get/set accessors with the same name'
-        },
-
-        '({ set i(x) { }, set i(x) { } })': {
-            index: 29,
-            lineNumber: 1,
-            column: 30,
-            message: 'Error: Line 1: Object literal may not have multiple get/set accessors with the same name'
-        },
-
-        'function t(if) { }': {
-            index: 11,
-            lineNumber: 1,
-            column: 12,
-            message: 'Error: Line 1: Unexpected token if'
-        },
-
-        'function t(true) { }': {
-            index: 11,
-            lineNumber: 1,
-            column: 12,
-            message: 'Error: Line 1: Unexpected token true'
-        },
-
-        'function t(false) { }': {
-            index: 11,
-            lineNumber: 1,
-            column: 12,
-            message: 'Error: Line 1: Unexpected token false'
-        },
-
-        'function t(null) { }': {
-            index: 11,
-            lineNumber: 1,
-            column: 12,
-            message: 'Error: Line 1: Unexpected token null'
-        },
-
-        'function null() { }': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected token null'
-        },
-
-        'function true() { }': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected token true'
-        },
-
-        'function false() { }': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected token false'
-        },
-
-        'function if() { }': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected token if'
-        },
-
-        'a b;': {
-            index: 2,
-            lineNumber: 1,
-            column: 3,
-            message: 'Error: Line 1: Unexpected identifier'
-        },
-
-        'if.a;': {
-            index: 2,
-            lineNumber: 1,
-            column: 3,
-            message: 'Error: Line 1: Unexpected token .'
-        },
-
-        'a if;': {
-            index: 2,
-            lineNumber: 1,
-            column: 3,
-            message: 'Error: Line 1: Unexpected token if'
-        },
-
-        'a class;': {
-            index: 2,
-            lineNumber: 1,
-            column: 3,
-            message: 'Error: Line 1: Unexpected reserved word'
-        },
-
-        'break\n': {
-            index: 5,
-            lineNumber: 1,
-            column: 6,
-            message: 'Error: Line 1: Illegal break statement'
-        },
-
-        'break 1;': {
-            index: 6,
-            lineNumber: 1,
-            column: 7,
-            message: 'Error: Line 1: Unexpected number'
-        },
-
-        'continue\n': {
-            index: 8,
-            lineNumber: 1,
-            column: 9,
-            message: 'Error: Line 1: Illegal continue statement'
-        },
-
-        'continue 2;': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected number'
-        },
-
-        'throw': {
-            index: 5,
-            lineNumber: 1,
-            column: 6,
-            message: 'Error: Line 1: Unexpected end of input'
-        },
-
-        'throw;': {
-            index: 5,
-            lineNumber: 1,
-            column: 6,
-            message: 'Error: Line 1: Unexpected token ;'
-        },
-
-        'throw\n': {
-            index: 5,
-            lineNumber: 1,
-            column: 6,
-            message: 'Error: Line 1: Illegal newline after throw'
-        },
-
-        'for (var i, i2 in {});': {
-            index: 15,
-            lineNumber: 1,
-            column: 16,
-            message: 'Error: Line 1: Unexpected token in'
-        },
-
-        'for ((i in {}));': {
-            index: 14,
-            lineNumber: 1,
-            column: 15,
-            message: 'Error: Line 1: Unexpected token )'
-        },
-
-        'for (i + 1 in {});': {
-            index: 10,
-            lineNumber: 1,
-            column: 11,
-            message: 'Error: Line 1: Invalid left-hand side in for-in'
-        },
-
-        'for (+i in {});': {
-            index: 7,
-            lineNumber: 1,
-            column: 8,
-            message: 'Error: Line 1: Invalid left-hand side in for-in'
-        },
-
-        'if(false)': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected end of input'
-        },
-
-        'if(false) doThis(); else': {
-            index: 24,
-            lineNumber: 1,
-            column: 25,
-            message: 'Error: Line 1: Unexpected end of input'
-        },
-
-        'do': {
-            index: 2,
-            lineNumber: 1,
-            column: 3,
-            message: 'Error: Line 1: Unexpected end of input'
-        },
-
-        'while(false)': {
-            index: 12,
-            lineNumber: 1,
-            column: 13,
-            message: 'Error: Line 1: Unexpected end of input'
-        },
-
-        'for(;;)': {
-            index: 7,
-            lineNumber: 1,
-            column: 8,
-            message: 'Error: Line 1: Unexpected end of input'
-        },
-
-        'with(x)': {
-            index: 7,
-            lineNumber: 1,
-            column: 8,
-            message: 'Error: Line 1: Unexpected end of input'
-        },
-
-        'try { }': {
-            index: 7,
-            lineNumber: 1,
-            column: 8,
-            message: 'Error: Line 1: Missing catch or finally after try'
-        },
-
-        'try {} catch (42) {} ': {
-            index: 14,
-            lineNumber: 1,
-            column: 15,
-            message: 'Error: Line 1: Unexpected number'
-        },
-
-        'try {} catch (answer()) {} ': {
-            index: 20,
-            lineNumber: 1,
-            column: 21,
-            message: 'Error: Line 1: Unexpected token ('
-        },
-
-        'try {} catch (-x) {} ': {
-            index: 14,
-            lineNumber: 1,
-            column: 15,
-            message: 'Error: Line 1: Unexpected token -'
-        },
-
-
-        '\u203F = 10': {
-            index: 0,
-            lineNumber: 1,
-            column: 1,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        'const x = 12, y;': {
-            index: 15,
-            lineNumber: 1,
-            column: 16,
-            message: 'Error: Line 1: Unexpected token ;'
-        },
-
-        'const x, y = 12;': {
-            index: 7,
-            lineNumber: 1,
-            column: 8,
-            message: 'Error: Line 1: Unexpected token ,'
-        },
-
-        'const x;': {
-            index: 7,
-            lineNumber: 1,
-            column: 8,
-            message: 'Error: Line 1: Unexpected token ;'
-        },
-
-        'if(true) let a = 1;': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected token let'
-        },
-
-        'if(true) const a = 1;': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected token const'
-        },
-
-        'switch (c) { default: default: }': {
-            index: 30,
-            lineNumber: 1,
-            column: 31,
-            message: 'Error: Line 1: More than one default clause in switch statement'
-        },
-
-        'new X()."s"': {
-            index: 8,
-            lineNumber: 1,
-            column: 9,
-            message: 'Error: Line 1: Unexpected string'
-        },
-
-        '/*': {
-            index: 2,
-            lineNumber: 1,
-            column: 3,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '/*\n\n\n': {
-            index: 5,
-            lineNumber: 4,
-            column: 1,
-            message: 'Error: Line 4: Unexpected token ILLEGAL'
-        },
-
-        '/**': {
-            index: 3,
-            lineNumber: 1,
-            column: 4,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '/*\n\n*': {
-            index: 5,
-            lineNumber: 3,
-            column: 2,
-            message: 'Error: Line 3: Unexpected token ILLEGAL'
-        },
-
-        '/*hello': {
-            index: 7,
-            lineNumber: 1,
-            column: 8,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '/*hello  *': {
-            index: 10,
-            lineNumber: 1,
-            column: 11,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '\n]': {
-            index: 1,
-            lineNumber: 2,
-            column: 1,
-            message: 'Error: Line 2: Unexpected token ]'
-        },
-
-        '\r]': {
-            index: 1,
-            lineNumber: 2,
-            column: 1,
-            message: 'Error: Line 2: Unexpected token ]'
-        },
-
-        '\r\n]': {
-            index: 2,
-            lineNumber: 2,
-            column: 1,
-            message: 'Error: Line 2: Unexpected token ]'
-        },
-
-        '\n\r]': {
-            index: 2,
-            lineNumber: 3,
-            column: 1,
-            message: 'Error: Line 3: Unexpected token ]'
-        },
-
-        '//\r\n]': {
-            index: 4,
-            lineNumber: 2,
-            column: 1,
-            message: 'Error: Line 2: Unexpected token ]'
-        },
-
-        '//\n\r]': {
-            index: 4,
-            lineNumber: 3,
-            column: 1,
-            message: 'Error: Line 3: Unexpected token ]'
-        },
-
-        '/a\\\n/': {
-            index: 4,
-            lineNumber: 1,
-            column: 5,
-            message: 'Error: Line 1: Invalid regular expression: missing /'
-        },
-
-        '//\r \n]': {
-            index: 5,
-            lineNumber: 3,
-            column: 1,
-            message: 'Error: Line 3: Unexpected token ]'
-        },
-
-        '/*\r\n*/]': {
-            index: 6,
-            lineNumber: 2,
-            column: 3,
-            message: 'Error: Line 2: Unexpected token ]'
-        },
-
-        '/*\n\r*/]': {
-            index: 6,
-            lineNumber: 3,
-            column: 3,
-            message: 'Error: Line 3: Unexpected token ]'
-        },
-
-        '/*\r \n*/]': {
-            index: 7,
-            lineNumber: 3,
-            column: 3,
-            message: 'Error: Line 3: Unexpected token ]'
-        },
-
-        '\\\\': {
-            index: 1,
-            lineNumber: 1,
-            column: 2,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '\\u005c': {
-            index: 6,
-            lineNumber: 1,
-            column: 7,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-
-        '\\x': {
-            index: 1,
-            lineNumber: 1,
-            column: 2,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '\\u0000': {
-            index: 6,
-            lineNumber: 1,
-            column: 7,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '\u200C = []': {
-            index: 0,
-            lineNumber: 1,
-            column: 1,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '\u200D = []': {
-            index: 0,
-            lineNumber: 1,
-            column: 1,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '"\\': {
-            index: 3,
-            lineNumber: 1,
-            column: 4,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        '"\\u': {
-            index: 3,
-            lineNumber: 1,
-            column: 4,
-            message: 'Error: Line 1: Unexpected token ILLEGAL'
-        },
-
-        'try { } catch() {}': {
-            index: 14,
-            lineNumber: 1,
-            column: 15,
-            message: 'Error: Line 1: Unexpected token )'
-        },
-
-        'return': {
-            index: 6,
-            lineNumber: 1,
-            column: 7,
-            message: 'Error: Line 1: Illegal return statement'
-        },
-
-        'break': {
-            index: 5,
-            lineNumber: 1,
-            column: 6,
-            message: 'Error: Line 1: Illegal break statement'
-        },
-
-        'continue': {
-            index: 8,
-            lineNumber: 1,
-            column: 9,
-            message: 'Error: Line 1: Illegal continue statement'
-        },
-
-        'switch (x) { default: continue; }': {
-            index: 31,
-            lineNumber: 1,
-            column: 32,
-            message: 'Error: Line 1: Illegal continue statement'
-        },
-
-        'do { x } *': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Unexpected token *'
-        },
-
-        'while (true) { break x; }': {
-            index: 22,
-            lineNumber: 1,
-            column: 23,
-            message: 'Error: Line 1: Undefined label \'x\''
-        },
-
-        'while (true) { continue x; }': {
-            index: 25,
-            lineNumber: 1,
-            column: 26,
-            message: 'Error: Line 1: Undefined label \'x\''
-        },
-
-        'x: while (true) { (function () { break x; }); }': {
-            index: 40,
-            lineNumber: 1,
-            column: 41,
-            message: 'Error: Line 1: Undefined label \'x\''
-        },
-
-        'x: while (true) { (function () { continue x; }); }': {
-            index: 43,
-            lineNumber: 1,
-            column: 44,
-            message: 'Error: Line 1: Undefined label \'x\''
-        },
-
-        'x: while (true) { (function () { break; }); }': {
-            index: 39,
-            lineNumber: 1,
-            column: 40,
-            message: 'Error: Line 1: Illegal break statement'
-        },
-
-        'x: while (true) { (function () { continue; }); }': {
-            index: 42,
-            lineNumber: 1,
-            column: 43,
-            message: 'Error: Line 1: Illegal continue statement'
-        },
-
-        'x: while (true) { x: while (true) { } }': {
-            index: 20,
-            lineNumber: 1,
-            column: 21,
-            message: 'Error: Line 1: Label \'x\' has already been declared'
-        },
-
-        '(function () { \'use strict\'; delete i; }())': {
-            index: 37,
-            lineNumber: 1,
-            column: 38,
-            message: 'Error: Line 1: Delete of an unqualified identifier in strict mode.'
-        },
-
-        '(function () { \'use strict\'; with (i); }())': {
-            index: 29,
-            lineNumber: 1,
-            column: 30,
-            message: 'Error: Line 1: Strict mode code may not include a with statement'
-        },
-
-        'function hello() {\'use strict\'; ({ i: 42, i: 42 }) }': {
-            index: 47,
-            lineNumber: 1,
-            column: 48,
-            message: 'Error: Line 1: Duplicate data property in object literal not allowed in strict mode'
-        },
-
-        'function hello() {\'use strict\'; ({ hasOwnProperty: 42, hasOwnProperty: 42 }) }': {
-            index: 73,
-            lineNumber: 1,
-            column: 74,
-            message: 'Error: Line 1: Duplicate data property in object literal not allowed in strict mode'
-        },
-
-        'function hello() {\'use strict\'; var eval = 10; }': {
-            index: 40,
-            lineNumber: 1,
-            column: 41,
-            message: 'Error: Line 1: Variable name may not be eval or arguments in strict mode'
-        },
-
-        'function hello() {\'use strict\'; var arguments = 10; }': {
-            index: 45,
-            lineNumber: 1,
-            column: 46,
-            message: 'Error: Line 1: Variable name may not be eval or arguments in strict mode'
-        },
-
-        'function hello() {\'use strict\'; try { } catch (eval) { } }': {
-            index: 51,
-            lineNumber: 1,
-            column: 52,
-            message: 'Error: Line 1: Catch variable may not be eval or arguments in strict mode'
-        },
-
-        'function hello() {\'use strict\'; try { } catch (arguments) { } }': {
-            index: 56,
-            lineNumber: 1,
-            column: 57,
-            message: 'Error: Line 1: Catch variable may not be eval or arguments in strict mode'
-        },
-
-        'function hello() {\'use strict\'; eval = 10; }': {
-            index: 32,
-            lineNumber: 1,
-            column: 33,
-            message: 'Error: Line 1: Assignment to eval or arguments is not allowed in strict mode'
-        },
-
-        'function hello() {\'use strict\'; arguments = 10; }': {
-            index: 32,
-            lineNumber: 1,
-            column: 33,
-            message: 'Error: Line 1: Assignment to eval or arguments is not allowed in strict mode'
-        },
-
-        'function hello() {\'use strict\'; ++eval; }': {
-            index: 38,
-            lineNumber: 1,
-            column: 39,
-            message: 'Error: Line 1: Prefix increment/decrement may not have eval or arguments operand in strict mode'
-        },
-
-        'function hello() {\'use strict\'; --eval; }': {
-            index: 38,
-            lineNumber: 1,
-            column: 39,
-            message: 'Error: Line 1: Prefix increment/decrement may not have eval or arguments operand in strict mode'
-        },
-
-        'function hello() {\'use strict\'; ++arguments; }': {
-            index: 43,
-            lineNumber: 1,
-            column: 44,
-            message: 'Error: Line 1: Prefix increment/decrement may not have eval or arguments operand in strict mode'
-        },
-
-        'function hello() {\'use strict\'; --arguments; }': {
-            index: 43,
-            lineNumber: 1,
-            column: 44,
-            message: 'Error: Line 1: Prefix increment/decrement may not have eval or arguments operand in strict mode'
-        },
-
-        'function hello() {\'use strict\'; eval++; }': {
-            index: 36,
-            lineNumber: 1,
-            column: 37,
-            message: 'Error: Line 1: Postfix increment/decrement may not have eval or arguments operand in strict mode'
-        },
-
-        'function hello() {\'use strict\'; eval--; }': {
-            index: 36,
-            lineNumber: 1,
-            column: 37,
-            message: 'Error: Line 1: Postfix increment/decrement may not have eval or arguments operand in strict mode'
-        },
-
-        'function hello() {\'use strict\'; arguments++; }': {
-            index: 41,
-            lineNumber: 1,
-            column: 42,
-            message: 'Error: Line 1: Postfix increment/decrement may not have eval or arguments operand in strict mode'
-        },
-
-        'function hello() {\'use strict\'; arguments--; }': {
-            index: 41,
-            lineNumber: 1,
-            column: 42,
-            message: 'Error: Line 1: Postfix increment/decrement may not have eval or arguments operand in strict mode'
-        },
-
-        'function hello() {\'use strict\'; function eval() { } }': {
-            index: 41,
-            lineNumber: 1,
-            column: 42,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        'function hello() {\'use strict\'; function arguments() { } }': {
-            index: 41,
-            lineNumber: 1,
-            column: 42,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        'function eval() {\'use strict\'; }': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        'function arguments() {\'use strict\'; }': {
-            index: 9,
-            lineNumber: 1,
-            column: 10,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        'function hello() {\'use strict\'; (function eval() { }()) }': {
-            index: 42,
-            lineNumber: 1,
-            column: 43,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        'function hello() {\'use strict\'; (function arguments() { }()) }': {
-            index: 42,
-            lineNumber: 1,
-            column: 43,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        '(function eval() {\'use strict\'; })()': {
-            index: 10,
-            lineNumber: 1,
-            column: 11,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        '(function arguments() {\'use strict\'; })()': {
-            index: 10,
-            lineNumber: 1,
-            column: 11,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        'function hello() {\'use strict\'; ({ s: function eval() { } }); }': {
-            index: 47,
-            lineNumber: 1,
-            column: 48,
-            message: 'Error: Line 1: Function name may not be eval or arguments in strict mode'
-        },
-
-        '(function package() {\'use strict\'; })()': {
-            index: 10,
-            lineNumber: 1,
-            column: 11,
-            message: 'Error: Line 1: Use of future reserved word in strict mode'
-        },
-
-        'function hello() {\'use strict\'; ({ i: 10, set s(eval) { } }); }': {
-            index: 48,
-            lineNumber: 1,
-            column: 49,
-            message: 'Error: Line 1: Parameter name eval or arguments is not allowed in strict mode'
-        },
-
-        'function hello() {\'use strict\'; ({ set s(eval) { } }); }': {
-            index: 41,
-            lineNumber: 1,
-            column: 42,
-            message: 'Error: Line 1: Parameter name eval or arguments is not allowed in strict mode'
-        },
-
-        'function hello() {\'use strict\'; ({ s: function s(eval) { } }); }': {
-            index: 49,
-            lineNumber: 1,
-            column: 50,
-            message: 'Error: Line 1: Parameter name eval or arguments is not allowed in strict mode'
-        },
-
-        'function hello(eval) {\'use strict\';}': {
-            index: 15,
-            lineNumber: 1,
-            column: 16,
-            message: 'Error: Line 1: Parameter name eval or arguments is not allowed in strict mode'
-        },
-
-        'function hello(arguments) {\'use strict\';}': {
-            index: 15,
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-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 44 }
-            },
-            errors: [{
-                index: 42,
-                lineNumber: 1,
-                column: 43,
-                message: 'Error: Line 1: Object literal may not have data and accessor property with the same name'
-            }]
-
-
-        },
-
-        '({ set s() { } })': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'ObjectExpression',
-                    properties: [{
-                        type: 'Property',
-                        key: {
-                            type: 'Identifier',
-                            name: 's',
-                            range: [7, 8],
-                            loc: {
-                                start: { line: 1, column: 7 },
-                                end: { line: 1, column: 8 }
-                            }
-                        },
-                        value: {
-                            type: 'FunctionExpression',
-                            id: null,
-                            params: [],
-                            defaults: [],
-                            body: {
-                                type: 'BlockStatement',
-                                body: [],
-                                range: [11, 14],
-                                loc: {
-                                    start: { line: 1, column: 11 },
-                                    end: { line: 1, column: 14 }
-                                }
-                            },
-                            rest: null,
-                            generator: false,
-                            expression: false,
-                            range: [11, 14],
-                            loc: {
-                                start: { line: 1, column: 11 },
-                                end: { line: 1, column: 14 }
-                            }
-                        },
-                        kind: 'set',
-                        range: [3, 14],
-                        loc: {
-                            start: { line: 1, column: 3 },
-                            end: { line: 1, column: 14 }
-                        }
-                    }],
-                    range: [1, 16],
-                    loc: {
-                        start: { line: 1, column: 1 },
-                        end: { line: 1, column: 16 }
-                    }
-                },
-                range: [0, 17],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 17 }
-                }
-            }],
-            range: [0, 17],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 17 }
-            },
-            errors: [{
-                index: 9,
-                lineNumber: 1,
-                column: 10,
-                message: 'Error: Line 1: Unexpected token )'
-            }]
-        },
-
-        'foo("bar") = baz': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'AssignmentExpression',
-                    operator: '=',
-                    left: {
-                        type: 'CallExpression',
-                        callee: {
-                            type: 'Identifier',
-                            name: 'foo',
-                            range: [0, 3],
-                            loc: {
-                                start: { line: 1, column: 0 },
-                                end: { line: 1, column: 3 }
-                            }
-                        },
-                        'arguments': [{
-                            type: 'Literal',
-                            value: 'bar',
-                            raw: '"bar"',
-                            range: [4, 9],
-                            loc: {
-                                start: { line: 1, column: 4 },
-                                end: { line: 1, column: 9 }
-                            }
-                        }],
-                        range: [0, 10],
-                        loc: {
-                            start: { line: 1, column: 0 },
-                            end: { line: 1, column: 10 }
-                        }
-                    },
-                    right: {
-                        type: 'Identifier',
-                        name: 'baz',
-                        range: [13, 16],
-                        loc: {
-                            start: { line: 1, column: 13 },
-                            end: { line: 1, column: 16 }
-                        }
-                    },
-                    range: [0, 16],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 16 }
-                    }
-                },
-                range: [0, 16],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 16 }
-                }
-            }],
-            range: [0, 16],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 16 }
-            },
-            errors: [{
-                index: 10,
-                lineNumber: 1,
-                column: 11,
-                message: 'Error: Line 1: Invalid left-hand side in assignment'
-            }]
-        },
-
-        '1 = 2': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'AssignmentExpression',
-                    operator: '=',
-                    left: {
-                        type: 'Literal',
-                        value: 1,
-                        raw: '1',
-                        range: [0, 1],
-                        loc: {
-                            start: { line: 1, column: 0 },
-                            end: { line: 1, column: 1 }
-                        }
-                    },
-                    right: {
-                        type: 'Literal',
-                        value: 2,
-                        raw: '2',
-                        range: [4, 5],
-                        loc: {
-                            start: { line: 1, column: 4 },
-                            end: { line: 1, column: 5 }
-                        }
-                    },
-                    range: [0, 5],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 5 }
-                    }
-                },
-                range: [0, 5],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 5 }
-                }
-            }],
-            range: [0, 5],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 5 }
-            },
-            errors: [{
-                index: 1,
-                lineNumber: 1,
-                column: 2,
-                message: 'Error: Line 1: Invalid left-hand side in assignment'
-            }]
-        },
-
-        '3++': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'UpdateExpression',
-                    operator: '++',
-                    argument: {
-                        type: 'Literal',
-                        value: 3,
-                        raw: '3',
-                        range: [0, 1],
-                        loc: {
-                            start: { line: 1, column: 0 },
-                            end: { line: 1, column: 1 }
-                        }
-                    },
-                    prefix: false,
-                    range: [0, 3],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 3 }
-                    }
-                },
-                range: [0, 3],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 3 }
-                }
-            }],
-            range: [0, 3],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 3 }
-            },
-            errors: [{
-                index: 1,
-                lineNumber: 1,
-                column: 2,
-                message: 'Error: Line 1: Invalid left-hand side in assignment'
-            }]
-        },
-
-        '--4': {
-            type: 'Program',
-            body: [{
-                type: 'ExpressionStatement',
-                expression: {
-                    type: 'UpdateExpression',
-                    operator: '--',
-                    argument: {
-                        type: 'Literal',
-                        value: 4,
-                        raw: '4',
-                        range: [2, 3],
-                        loc: {
-                            start: { line: 1, column: 2 },
-                            end: { line: 1, column: 3 }
-                        }
-                    },
-                    prefix: true,
-                    range: [0, 3],
-                    loc: {
-                        start: { line: 1, column: 0 },
-                        end: { line: 1, column: 3 }
-                    }
-                },
-                range: [0, 3],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 3 }
-                }
-            }],
-            range: [0, 3],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 3 }
-            },
-            errors: [{
-                index: 3,
-                lineNumber: 1,
-                column: 4,
-                message: 'Error: Line 1: Invalid left-hand side in assignment'
-            }]
-        },
-
-        'for (5 in []) {}': {
-            type: 'Program',
-            body: [{
-                type: 'ForInStatement',
-                left: {
-                    type: 'Literal',
-                    value: 5,
-                    raw: '5',
-                    range: [5, 6],
-                    loc: {
-                        start: { line: 1, column: 5 },
-                        end: { line: 1, column: 6 }
-                    }
-                },
-                right: {
-                    type: 'ArrayExpression',
-                    elements: [],
-                    range: [10, 12],
-                    loc: {
-                        start: { line: 1, column: 10 },
-                        end: { line: 1, column: 12 }
-                    }
-                },
-                body: {
-                    type: 'BlockStatement',
-                    body: [],
-                    range: [14, 16],
-                    loc: {
-                        start: { line: 1, column: 14 },
-                        end: { line: 1, column: 16 }
-                    }
-                },
-                each: false,
-                range: [0, 16],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 16 }
-                }
-            }],
-            range: [0, 16],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 16 }
-            },
-            errors: [{
-                index: 6,
-                lineNumber: 1,
-                column: 7,
-                message: 'Error: Line 1: Invalid left-hand side in for-in'
-            }]
-        },
-
-        'var x = /[P QR]/\\g': {
-            type: "Program",
-            body: [{
-                type: "VariableDeclaration",
-                declarations: [{
-                    type: "VariableDeclarator",
-                    id: {
-                        type: "Identifier",
-                        name: "x",
-                        range: [4, 5],
-                        loc: {
-                            start: { line: 1, column: 4 },
-                            end: { line: 1, column: 5 }
-                        }
-                    },
-                    init: {
-                        type: "Literal",
-                        value: "/[P QR]/g",
-                        raw: "/[P QR]/\\g",
-                        range: [8, 18],
-                        loc: {
-                            start: { line: 1, column: 8 },
-                            end: { line: 1, column: 18 }
-                        }
-                    },
-                    range: [4, 18],
-                    loc: {
-                        start: { line: 1, column: 4 },
-                        end: { line: 1, column: 18 }
-                    }
-                }],
-                kind: "var",
-                range: [0, 18],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 18 }
-                }
-            }],
-            range: [0, 18],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 18 }
-            },
-            errors: [{
-                index: 17,
-                lineNumber: 1,
-                column: 18,
-                message: "Error: Line 1: Unexpected token ILLEGAL"
-            }]
-        },
-
-        'var x = /[P QR]/\\\\u0067': {
-            type: "Program",
-            body: [{
-                type: "VariableDeclaration",
-                declarations: [{
-                    type: "VariableDeclarator",
-                    id: {
-                        type: "Identifier",
-                        name: "x",
-                        range: [4, 5],
-                        loc: {
-                            start: { line: 1, column: 4 },
-                            end: { line: 1, column: 5 }
-                        }
-                    },
-                    init: {
-                        type: "Literal",
-                        value: "/[P QR]/g",
-                        raw: "/[P QR]/\\\\u0067",
-                        range: [8, 23],
-                        loc: {
-                            start: { line: 1, column: 8 },
-                            end: { line: 1, column: 23 }
-                        }
-                    },
-                    range: [4, 23],
-                    loc: {
-                        start: { line: 1, column: 4 },
-                        end: { line: 1, column: 23 }
-                    }
-                }],
-                kind: "var",
-                range: [0, 23],
-                loc: {
-                    start: { line: 1, column: 0 },
-                    end: { line: 1, column: 23 }
-                }
-            }],
-            range: [0, 23],
-            loc: {
-                start: { line: 1, column: 0 },
-                end: { line: 1, column: 23 }
-            },
-            errors: [{
-                index: 17,
-                lineNumber: 1,
-                column: 18,
-                message: "Error: Line 1: Unexpected token ILLEGAL"
-            }, {
-                index: 23,
-                lineNumber: 1,
-                column: 24,
-                message: "Error: Line 1: Unexpected token ILLEGAL"
-            }]
-        }
-
-    }
-};
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/.npmignore b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/.npmignore
deleted file mode 100644
index 0fa279c03d5..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/.npmignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*.glsl
-node_modules/
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/LICENSE b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/LICENSE
deleted file mode 100644
index afbb4fb7c65..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Chris Dickinson
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/README.md b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/README.md
deleted file mode 100644
index ba634cd2a1b..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/README.md
+++ /dev/null
@@ -1,212 +0,0 @@
-# glslify
-
-a module system for GLSL and a transform enabling easy access to GLSL Shaders in JavaScript.
-
-## As a Browserify transform:
-
-```bash
-$ npm install --save glslify
-$ browserify entry.js -t glslify > bundle.js
-```
-
-glslify will find and replace all instances of `glslify({vertex: path, fragment: path})`
-with a function that takes a webgl context and returns a [shader instance](http://npm.im/gl-shader-core).
-
-Recommended usage:
-
-```javascript
-var glslify = require('glslify')    // requiring `glslify` is safe in this context.
-                                    // if the program is run without the transform,
-                                    // it'll output a helpful error message.
-var shell = require('gl-now')()
-
-var createShader = glslify({
-    vertex: './vertex.glsl'
-  , fragment: './fragment.glsl'
-})
-
-var program
-
-shell.on('gl-init', function() {
-  program = createShader(shell.gl)
-})
-```
-
-As part of the transform, the program will be analyzed for its **uniforms** and **attributes**,
-so once you have a `program` instance, the following will work:
-
-```javascript
-
-// given a glsl program containing:
-//
-//   uniform vec2 color;
-//   uniform mat4 view;
-
-program.bind()
-program.uniforms.color = [0.5, 1.0]
-program.uniforms.view = [
-  1, 0, 0, 0
-, 0, 1, 0, 0
-, 0, 0, 1, 0
-, 0, 0, 0, 1
-]
-
-```
-
-The following options may be passed into glslify's transformed constructor:
-
-* `fragment`: the fragment shader to use.
-* `vertex`: the vertex shader to use.
-* `inline`: instead of loading the vertex/fragment shaders from a file path,
-  use the string values of these options directly to generate the shaders.
-* `transform`: a string or array of strings naming browserify-transform stream
-  modules you would like to use to transform these shaders.
-
-## As a GLSL module system:
-
-glslify can be run as a standalone command as well:
-
-
-```bash
-$ glslify my-module.glsl > output.glsl
-```
-
-glslify allows you to write GLSL modules that export a local function, variable, or type,
-and `require` those modules to bring that export into another module.
-
-Lookups work like node's `require` -- that is, it'll work relatively to the file first,
-and then work from the file's directory on up to the root directory looking for a package
-in `node_modules/`.
-
-## example files
-
-| [`main.glsl`](#mainglsl) | [`file1.glsl`](#file1glsl) | [`file2.glsl`](#file2glsl) |
-|---------------------------|-----------------------------|-----------------------------|
-
-### main.glsl
-
-[back to file list](#example-files)
-
-```c
-// main.glsl
-precision highp float;
-uniform float time;
-uniform vec2 mouse;
-uniform vec2 resolution;
-
-// require a function from another file!
-#pragma glslify: program_one = require(./file1)
-
-// require a function from another file, and replace
-// `local_value` in that file with `resolution.x` from
-// this scope.
-#pragma glslify: program_two = require(./file2, local_value=resolution.x)
-
-int modulo(float x, float y) {
-  return int(x - y * floor(x / y));
-}
-
-void main(void) {
-  ivec2 m = ivec2(modulo(gl_FragCoord.x, 2.), modulo(gl_FragCoord.y, 2.));
-
-  if(m.x == 0 || m.y == 0) {
-    program_one();
-  } else { 
-    program_two();
-  }
-}
-```
-
-
-### file1.glsl
-
-[back to file list](#example-files)
-
-```c
-// file1.glsl
-void main(void) {
-  gl_FragColor = vec4(1., 0., 0., 1.);
-}
-
-#pragma glslify: export(main)
-```
-
-### file2.glsl
-
-[back to file list](#example-files)
-
-```c
-// file2.glsl
-
-uniform float local_value;
-
-void main(void) {
-  gl_FragColor = vec4(0., 0., local_value, 1.);
-}
-
-#pragma glslify: export(main)
-```
-# GLSL API
-
-GLSLify works by mangling top-level identities in non-root modules.
-
-Exported variables will be aliased on requirement.
-
-### \#pragma glslify: VARIABLE = require(MODULE[, NAME=EXPR])
-
-Import a module and assign it the name `VARIABLE` in the local program.
-
-`MODULE` may be located within `node_modules/` or relative to the current file.
-
-**Quotes are not allowed.**
-
-If the target module defines `attribute`, `varying`, or `uniform` global variables,
-you may map those to a local definition or expression:
-
-```c
-
-attribute vec4 position;
-#pragma glslify: x = require(./takes_vec2, module_variable=position.xy)
-
-```
-
-If a mapping is not defined, those requirements are forwarded on to the module requiring
-the current module -- if no mappings are found for a definition, an error is raised.
-
-### \#pragma glslify: export(NAME)
-
-Exports a local name from the current module. If the current module is the root, this is
-a no-op. There may be only one exported `NAME` per module. The `NAME` may represent a
-type, function, or variable.
-
-
-# With ThreeJS
-
-You can use the `sourceOnly` option to integrate glslfiy with ThreeJS and other WebGL frameworks. This will return an object with `vertex` and `fragment` shader source, which you can then compile yourself.
-
-In ThreeJS it might look like this:  
-
-```js
-var myShader = glslify({
-    vertex: './vertex.glsl',
-    fragment: './fragment.glsl',
-    sourceOnly: true
-});
-
-//optionally do something with our uniforms/attribs
-console.log( myShader.uniforms, myShader.attributes );
-
-//setup custom ThreeJS material...
-var mat = new THREE.ShaderMaterial({
-    vertexShader: myShader.vertex,
-    fragmentShader: myShader.fragment
-    uniforms: { 
-      // setup your uniforms..
-    }
-});
-
-```
-
-# License
-
-MIT
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/adapter.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/adapter.js
deleted file mode 100644
index 6273c82ea4b..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/adapter.js
+++ /dev/null
@@ -1,9 +0,0 @@
-module.exports = programify
-
-var shader = require('gl-shader-core')
-
-function programify(vertex, fragment, uniforms, attributes) {
-  return function(gl) {
-    return shader(gl, vertex, fragment, uniforms, attributes)
-  }
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/bin/glslify b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/bin/glslify
deleted file mode 100755
index 86eb9469fdd..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/bin/glslify
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/usr/bin/env node
-require('../cli')()
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/browser.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/browser.js
deleted file mode 100644
index c3c020c68a1..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/browser.js
+++ /dev/null
@@ -1,8 +0,0 @@
-module.exports = noop
-
-function noop() {
-  throw new Error(
-      'You should bundle your code ' +
-      'using `glslify` as a transform.'
-  )
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/cli.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/cli.js
deleted file mode 100644
index dbae39416a3..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/cli.js
+++ /dev/null
@@ -1,68 +0,0 @@
-var tty = require('tty')
-  , nopt = require('nopt')
-  , path = require('path')
-  , fs = require('fs')
-  , shorthand
-  , options
-
-var glslify = require('glslify-stream')
-  , deparser = require('glsl-deparser')
-  , minify = require('glsl-min-stream')
-
-options = {
-    'minify': Boolean
-  , 'output': path
-  , 'help': Boolean
-}
-
-shorthand = {
-    'h': ['--help']
-  , 'm': ['--minify']
-  , 'o': ['--output']
-}
-
-module.exports = run
-
-function help() {
-/*
-glslify [-o|--output file] [-h|--help] file
-
-  compile multiple glsl modules with #pragma: glslify directives into a single
-  glsl output.
-
-  if no output option is defined, output will be written to stdout.
-
-  arguments:
-
-    --help, -h                  this help message.
-
-    --output path, -o path      output result of minification to file represented by `path`.
-                                by default, output will be written to stdout.
-
-*/
-
-  var str = help+''
-
-  process.stdout.write(str.slice(str.indexOf('/*')+3, str.indexOf('*/')))
-}
-
-function run() {
-  var parsed = nopt(options, shorthand)
-
-  if(parsed.help || !parsed.argv.remain.length) {
-    return help(), process.exit(1)
-  }
-
-  var should_minify = parsed.minify
-    , output = parsed.output ? fs.createWriteStream(parsed.output) : process.stdout
-    , input = path.resolve(parsed.argv.remain[0])
-    , stream
-
-  stream = glslify(input)
-
-  if(should_minify)
-    stream = stream.pipe(minify())
-
-  stream.pipe(deparser(!should_minify))
-        .pipe(output)
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/example.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/example.js
deleted file mode 100644
index 71042ec80f9..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/example.js
+++ /dev/null
@@ -1,5 +0,0 @@
-var glslify = require('glslify')
-
-var program = glslify({vertex: "./balls.glsl", fragment: "./sauron.glsl"})
-
-
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/index.js
deleted file mode 100644
index d09c1c972dd..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/index.js
+++ /dev/null
@@ -1,192 +0,0 @@
-module.exports = transform
-
-var glslify = require('glslify-stream')
-  , deparser = require('glsl-deparser')
-  , replace = require('replace-method')
-  , concat = require('concat-stream')
-  , evaluate = require('static-eval')
-  , extract = require('glsl-extract')
-  , emit = require('emit-function')
-  , through = require('through')
-  , resolve = require('resolve')
-  , esprima = require('esprima')
-  , sleuth = require('sleuth')
-  , from = require('new-from')
-  , path = require('path')
-
-var usageRegex = /['"]glslify['"]/
-
-function transform(filename) {
-  var stream = through(write, end)
-    , accum = []
-    , len = 0
-
-  return stream
-
-  function write(buf) {
-    accum[accum.length] = buf
-    len += buf.length
-  }
-
-  function end() {
-    var buf = Buffer.concat(accum).toString('utf8')
-
-    // break out early if it doesn't look like
-    // we're going to find any shaders here,
-    // parsing and transforming the AST is expensive!
-    if(!usageRegex.test(buf)) {
-      return bail(buf)
-    }
-
-    var ast = esprima.parse(buf)
-      , name = glslifyname(ast)
-      , src = replace(ast)
-      , loading = 0
-      , map = {}
-      , id = 0
-
-    // bail early if glslify isn't required at all
-    if(!name) {
-      return bail(buf)
-    }
-
-    src.replace([name], function(node) {
-      var fragment
-        , current
-        , vertex
-        , config
-
-      current = ++id
-
-      if(!node.arguments.length) {
-        return
-      }
-
-      var cwd = path.dirname(filename)
-      config = evaluate(node.arguments[0], {
-          __filename: filename
-        , __dirname: cwd
-      })
-
-      if(typeof config !== 'object') {
-        return
-      }
-
-      var sourceOnly = !!config.sourceOnly
-      var frag = config.fragment || config.frag
-      var vert = config.vertex || config.vert
-      var inline = !!config.inline
-
-      var streamOpts = {
-          input: inline
-        , transform: config.transform
-      }
-
-      ++loading
-      var vert_stream = glslify(
-        inline ? filename : path.resolve(cwd, vert)
-      , streamOpts)
-
-      var frag_stream = glslify(
-        inline ? filename : path.resolve(cwd, frag)
-      , streamOpts)
-
-      if(inline) {
-        from([vert]).pipe(vert_stream)
-        from([frag]).pipe(frag_stream)
-      }
-
-      vert_stream
-        .on('file', emit(stream, 'file'))
-        .on('error', emit(stream, 'error'))
-        .pipe(deparser())
-        .pipe(concat(onvertex))
-
-      frag_stream
-        .on('file', emit(stream, 'file'))
-        .on('error', emit(stream, 'error'))
-        .pipe(deparser())
-        .pipe(concat(onfragment))
-
-      return {
-          type: 'CallExpression'
-        , callee: {
-              type: 'CallExpression'
-            , callee: {
-                  type: 'Identifier'
-                , name: 'require'
-              }
-            , arguments: [
-                  {type: 'Literal', value: sourceOnly ? 'glslify/simple-adapter.js' : 'glslify/adapter.js'}
-              ]
-          }
-        , arguments: [
-              {type: 'Identifier', name: '__glslify_' + current + '_vert'}
-            , {type: 'Identifier', name: '__glslify_' + current + '_frag'}
-            , {type: 'Identifier', name: '__glslify_' + current + '_unis'}
-            , {type: 'Identifier', name: '__glslify_' + current + '_attrs'}
-          ]
-      }
-
-      function onvertex(data) {
-        vertex = data
-        vertex && fragment && done()
-      }
-
-      function onfragment(data) {
-        fragment = data
-        vertex && fragment && done()
-      }
-
-      function done() {
-        extract(vertex + '\n' + fragment)(function(err, info) {
-          if(err) {
-            return stream.emit('error', err)
-          }
-
-          --loading
-
-          map[current] = [vertex, fragment, info.uniforms, info.attributes]
-
-          if(!loading) {
-            finish()
-          }
-        })
-      }
-    })
-
-    if(!loading) {
-      finish()
-    }
-
-    function finish() {
-      var code = src.code()
-        , unmap
-
-      unmap = {vert: 0, frag: 1, unis: 2, attrs: 3}
-
-      code = code.replace(/__glslify_(\d+)_(vert|frag|unis|attrs)/g, function(all, num, type) {
-        return JSON.stringify(map[num][unmap[type]])
-      })
-
-      stream.queue(code)
-      stream.queue(null)
-    }
-
-    function bail(code) {
-      stream.queue(code)
-      stream.queue(null)
-    }
-  }
-}
-
-function glslifyname(ast) {
-  var required = sleuth(ast)
-  var name
-
-  Object.keys(required).some(function(key) {
-    return name = (required[key] === 'glslify' ? key : null)
-  })
-
-  return name
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/package.json b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/package.json
deleted file mode 100644
index e70816bd5fd..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/package.json
+++ /dev/null
@@ -1,82 +0,0 @@
-{
-  "_from": "glslify@^1.6.0",
-  "_id": "glslify@1.6.1",
-  "_inBundle": false,
-  "_integrity": "sha1-WqtSNgXx1pGrhfU262wbQl/c0Q8=",
-  "_location": "/gl-vignette-background/glslify",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "glslify@^1.6.0",
-    "name": "glslify",
-    "escapedName": "glslify",
-    "rawSpec": "^1.6.0",
-    "saveSpec": null,
-    "fetchSpec": "^1.6.0"
-  },
-  "_requiredBy": [
-    "/gl-vignette-background"
-  ],
-  "_resolved": "http://registry.npmjs.org/glslify/-/glslify-1.6.1.tgz",
-  "_shasum": "5aab523605f1d691ab85f536eb6c1b425fdcd10f",
-  "_spec": "glslify@^1.6.0",
-  "_where": "/Users/forrest/Audius/vis-test/node_modules/gl-vignette-background",
-  "authors": [
-    "Hugh Kennedy <hughskennedy@gmail.com> (http://hughsk.io/)",
-    "Mikola Lysenko <mikolalysenko@gmail.com> (http://0fps.net)",
-    "Chris Dickinson <chris@neversaw.us> (http://neversaw.us)"
-  ],
-  "bin": {
-    "glslify": "./bin/glslify"
-  },
-  "browser": {
-    "index.js": "browser.js"
-  },
-  "bugs": {
-    "url": "https://github.com/gl-modules/glslify/issues"
-  },
-  "bundleDependencies": false,
-  "dependencies": {
-    "concat-stream": "^1.4.1",
-    "cssauron": "0.0.2",
-    "cssauron-glsl": "0.0.0",
-    "emit-function": "0.0.2",
-    "esprima": "^1.0.4",
-    "gl-shader-core": "^2.0.0",
-    "glsl-deparser": "0.0.2",
-    "glsl-extract": "0.0.2",
-    "glsl-min-stream": "0.0.2",
-    "glslify-stream": "^0.4.0",
-    "new-from": "^0.0.3",
-    "nopt": "^2.0.0",
-    "replace-method": "0.0.0",
-    "resolve": "^0.6.1",
-    "shortest": "0.0.0",
-    "sleuth": "^0.1.1",
-    "static-eval": "^0.2.2",
-    "through": "^2.3.4"
-  },
-  "deprecated": false,
-  "description": "command line glsl module system builder",
-  "homepage": "https://github.com/gl-modules/glslify#readme",
-  "keywords": [
-    "glslify",
-    "glsl",
-    "module",
-    "system",
-    "cli"
-  ],
-  "license": "MIT",
-  "main": "index.js",
-  "name": "glslify",
-  "preferGlobal": "true",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/gl-modules/glslify.git"
-  },
-  "scripts": {
-    "test": "node test/index.js"
-  },
-  "version": "1.6.1"
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/simple-adapter.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/simple-adapter.js
deleted file mode 100644
index f202180a657..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/glslify/simple-adapter.js
+++ /dev/null
@@ -1,10 +0,0 @@
-module.exports = programify
-
-function programify(vertex, fragment, uniforms, attributes) {
-  return {
-    vertex: vertex, 
-    fragment: fragment,
-    uniforms: uniforms, 
-    attributes: attributes
-  };
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/.travis.yml b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/.travis.yml
deleted file mode 100644
index 895dbd36234..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/.travis.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-language: node_js
-node_js:
-  - 0.6
-  - 0.8
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/LICENSE b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/LICENSE
deleted file mode 100644
index ee27ba4b441..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/LICENSE
+++ /dev/null
@@ -1,18 +0,0 @@
-This software is released under the MIT license:
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/example/async.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/example/async.js
deleted file mode 100644
index 6624ff7268f..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/example/async.js
+++ /dev/null
@@ -1,5 +0,0 @@
-var resolve = require('../');
-resolve('tap', { basedir: __dirname }, function (err, res) {
-    if (err) console.error(err)
-    else console.log(res)
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/example/sync.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/example/sync.js
deleted file mode 100644
index 54b2cc10042..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/example/sync.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var resolve = require('../');
-var res = resolve.sync('tap', { basedir: __dirname });
-console.log(res);
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/index.js
deleted file mode 100644
index 51f194b4ca7..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/index.js
+++ /dev/null
@@ -1,5 +0,0 @@
-var core = require('./lib/core');
-exports = module.exports = require('./lib/async');
-exports.core = core;
-exports.isCore = function (x) { return core[x] };
-exports.sync = require('./lib/sync');
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/async.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/async.js
deleted file mode 100644
index dc998134cbc..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/async.js
+++ /dev/null
@@ -1,127 +0,0 @@
-var core = require('./core');
-var fs = require('fs');
-var path = require('path');
-var caller = require('./caller.js');
-var nodeModulesPaths = require('./node-modules-paths.js');
-
-module.exports = function resolve (x, opts, cb) {
-    if (typeof opts === 'function') {
-        cb = opts;
-        opts = {};
-    }
-    if (!opts) opts = {};
-    
-    var isFile = opts.isFile || function (file, cb) {
-        fs.stat(file, function (err, stat) {
-            if (err && err.code === 'ENOENT') cb(null, false)
-            else if (err) cb(err)
-            else cb(null, stat.isFile() || stat.isFIFO())
-        });
-    };
-    var readFile = opts.readFile || fs.readFile;
-    
-    var extensions = opts.extensions || [ '.js' ];
-    var y = opts.basedir || path.dirname(caller());
-    var modules = opts.moduleDirectory || 'node_modules';
-    
-    opts.paths = opts.paths || [];
-    
-    if (x.match(/^(?:\.\.?\/|\/|([A-Za-z]:)?\\)/)) {
-        loadAsFile(path.resolve(y, x), function (err, m, pkg) {
-            if (err) cb(err)
-            else if (m) cb(null, m, pkg)
-            else loadAsDirectory(path.resolve(y, x), function (err, d, pkg) {
-                if (err) cb(err)
-                else if (d) cb(null, d, pkg)
-                else cb(new Error("Cannot find module '" + x + "' from '" + y + "'"))
-            })
-        });
-    }
-    else loadNodeModules(x, y, function (err, n, pkg) {
-        if (err) cb(err)
-        else if (n) cb(null, n, pkg)
-        else if (core[x]) return cb(null, x);
-        else cb(new Error("Cannot find module '" + x + "' from '" + y + "'"))
-    });
-    
-    function loadAsFile (x, pkg, cb) {
-        if (typeof pkg === 'function') {
-            cb = pkg;
-            pkg = opts.package;
-        }
-      
-        (function load (exts) {
-            if (exts.length === 0) return cb(null, undefined, pkg);
-            var file = x + exts[0];
-            
-            isFile(file, function (err, ex) {
-                if (err) cb(err)
-                else if (ex) cb(null, file, pkg)
-                else load(exts.slice(1))
-            });
-        })([''].concat(extensions));
-    }
-    
-    function loadAsDirectory (x, fpkg, cb) {
-        if (typeof fpkg === 'function') {
-            cb = fpkg;
-            fpkg = opts.package;
-        }
-        
-        var pkgfile = path.join(x, '/package.json');
-        isFile(pkgfile, function (err, ex) {
-            if (err) return cb(err);
-            if (!ex) return loadAsFile(path.join(x, '/index'), fpkg, cb);
-            
-            readFile(pkgfile, function (err, body) {
-                if (err) return cb(err);
-                try {
-                    var pkg = JSON.parse(body);
-                }
-                catch (err) {}
-                
-                if (opts.packageFilter) {
-                    pkg = opts.packageFilter(pkg, x);
-                }
-                
-                if (pkg.main) {
-                    if (pkg.main === '.' || pkg.main === './'){
-                        pkg.main = 'index'
-                    }
-                    loadAsFile(path.resolve(x, pkg.main), pkg, function (err, m, pkg) {
-                        if (err) return cb(err);
-                        if (m) return cb(null, m, pkg);
-                        if (!pkg) return loadAsFile(path.join(x, '/index'), pkg, cb);
-
-                        var dir = path.resolve(x, pkg.main);
-                        loadAsDirectory(dir, pkg, function (err, n, pkg) {
-                            if (err) return cb(err);
-                            if (n) return cb(null, n, pkg);
-                            loadAsFile(path.join(x, '/index'), pkg, cb);
-                        });
-                    });
-                    return;
-                }
-                
-                loadAsFile(path.join(x, '/index'), pkg, cb);
-            });
-        });
-    }
-    
-    function loadNodeModules (x, start, cb) {
-        (function process (dirs) {
-            if (dirs.length === 0) return cb(null, undefined);
-            var dir = dirs[0];
-            
-            loadAsFile(path.join(dir, '/', x), undefined, function (err, m, pkg) {
-                if (err) return cb(err);
-                if (m) return cb(null, m, pkg);
-                loadAsDirectory(path.join(dir, '/', x), undefined, function (err, n, pkg) {
-                    if (err) return cb(err);
-                    if (n) return cb(null, n, pkg);
-                    process(dirs.slice(1));
-                });
-            });
-        })(nodeModulesPaths(start, opts));
-    }
-};
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/caller.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/caller.js
deleted file mode 100644
index 5536549b046..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/caller.js
+++ /dev/null
@@ -1,8 +0,0 @@
-module.exports = function () {
-    // see https://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
-    var origPrepareStackTrace = Error.prepareStackTrace;
-    Error.prepareStackTrace = function (_, stack) { return stack };
-    var stack = (new Error()).stack;
-    Error.prepareStackTrace = origPrepareStackTrace;
-    return stack[2].getFileName();
-};
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/core.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/core.js
deleted file mode 100644
index ea4a6c87eff..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/core.js
+++ /dev/null
@@ -1,4 +0,0 @@
-module.exports = require('./core.json').reduce(function (acc, x) {
-    acc[x] = true;
-    return acc;
-}, {});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/core.json b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/core.json
deleted file mode 100644
index 28560f7ef74..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/core.json
+++ /dev/null
@@ -1,38 +0,0 @@
-[
-    "assert",
-    "buffer_ieee754",
-    "buffer",
-    "child_process",
-    "cluster",
-    "console",
-    "constants",
-    "crypto",
-    "_debugger",
-    "dgram",
-    "dns",
-    "domain",
-    "events",
-    "freelist",
-    "fs",
-    "http",
-    "https",
-    "_linklist",
-    "module",
-    "net",
-    "os",
-    "path",
-    "punycode",
-    "querystring",
-    "readline",
-    "repl",
-    "stream",
-    "string_decoder",
-    "sys",
-    "timers",
-    "tls",
-    "tty",
-    "url",
-    "util",
-    "vm",
-    "zlib"
-]
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/node-modules-paths.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/node-modules-paths.js
deleted file mode 100644
index c31efcd0a1b..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/node-modules-paths.js
+++ /dev/null
@@ -1,28 +0,0 @@
-var path = require('path');
-
-
-module.exports = function (start, opts) {
-    var modules = opts.moduleDirectory || 'node_modules';
-    var prefix = '/';
-    if (/^([A-Za-z]:)/.test(start)) {
-        prefix = '';
-    } else if (/^\\\\/.test(start)) {
-        prefix = '\\\\';
-    }
-    var splitRe = process.platform === 'win32' ? /[\/\\]/ : /\/+/;
-    var parts = start.split(splitRe);
-
-    var dirs = [];
-    for (var i = parts.length - 1; i >= 0; i--) {
-        if (parts[i] === modules) continue;
-        var dir = path.join(
-            path.join.apply(path, parts.slice(0, i + 1)),
-            modules
-        );
-        dirs.push(prefix + dir);
-    }
-    if(process.platform === 'win32'){
-        dirs[dirs.length-1] = dirs[dirs.length-1].replace(":", ":\\");
-    }
-    return dirs.concat(opts.paths);
-}
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/sync.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/sync.js
deleted file mode 100644
index 49c262571a8..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/lib/sync.js
+++ /dev/null
@@ -1,80 +0,0 @@
-var core = require('./core');
-var fs = require('fs');
-var path = require('path');
-var caller = require('./caller.js');
-var nodeModulesPaths = require('./node-modules-paths.js');
-
-module.exports = function (x, opts) {
-    if (!opts) opts = {};
-    var isFile = opts.isFile || function (file) {
-        try { var stat = fs.statSync(file) }
-        catch (err) { if (err && err.code === 'ENOENT') return false }
-        return stat.isFile() || stat.isFIFO();
-    };
-    var readFileSync = opts.readFileSync || fs.readFileSync;
-    
-    var extensions = opts.extensions || [ '.js' ];
-    var y = opts.basedir || path.dirname(caller());
-
-    opts.paths = opts.paths || [];
-
-    if (x.match(/^(?:\.\.?\/|\/|([A-Za-z]:)?\\)/)) {
-        var m = loadAsFileSync(path.resolve(y, x))
-            || loadAsDirectorySync(path.resolve(y, x));
-        if (m) return m;
-    } else {
-        var n = loadNodeModulesSync(x, y);
-        if (n) return n;
-    }
-    
-    if (core[x]) return x;
-    
-    throw new Error("Cannot find module '" + x + "' from '" + y + "'");
-    
-    function loadAsFileSync (x) {
-        if (isFile(x)) {
-            return x;
-        }
-        
-        for (var i = 0; i < extensions.length; i++) {
-            var file = x + extensions[i];
-            if (isFile(file)) {
-                return file;
-            }
-        }
-    }
-    
-    function loadAsDirectorySync (x) {
-        var pkgfile = path.join(x, '/package.json');
-        if (isFile(pkgfile)) {
-            var body = readFileSync(pkgfile, 'utf8');
-            try {
-                var pkg = JSON.parse(body);
-                if (opts.packageFilter) {
-                    pkg = opts.packageFilter(pkg, x);
-                }
-                
-                if (pkg.main) {
-                    var m = loadAsFileSync(path.resolve(x, pkg.main));
-                    if (m) return m;
-                    var n = loadAsDirectorySync(path.resolve(x, pkg.main));
-                    if (n) return n;
-                }
-            }
-            catch (err) {}
-        }
-        
-        return loadAsFileSync(path.join( x, '/index'));
-    }
-    
-    function loadNodeModulesSync (x, start) {
-        var dirs = nodeModulesPaths(start, opts);
-        for (var i = 0; i < dirs.length; i++) {
-            var dir = dirs[i];
-            var m = loadAsFileSync(path.join( dir, '/', x));
-            if (m) return m;
-            var n = loadAsDirectorySync(path.join( dir, '/', x ));
-            if (n) return n;
-        }
-    }
-};
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/package.json b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/package.json
deleted file mode 100644
index 712c0252c1b..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/package.json
+++ /dev/null
@@ -1,57 +0,0 @@
-{
-  "_from": "resolve@^0.6.1",
-  "_id": "resolve@0.6.3",
-  "_inBundle": false,
-  "_integrity": "sha1-3ZV5gufnNt699TtYpN2RdUV13UY=",
-  "_location": "/gl-vignette-background/resolve",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "resolve@^0.6.1",
-    "name": "resolve",
-    "escapedName": "resolve",
-    "rawSpec": "^0.6.1",
-    "saveSpec": null,
-    "fetchSpec": "^0.6.1"
-  },
-  "_requiredBy": [
-    "/gl-vignette-background/glslify"
-  ],
-  "_resolved": "https://registry.npmjs.org/resolve/-/resolve-0.6.3.tgz",
-  "_shasum": "dd957982e7e736debdf53b58a4dd91754575dd46",
-  "_spec": "resolve@^0.6.1",
-  "_where": "/Users/forrest/Audius/vis-test/node_modules/gl-vignette-background/node_modules/glslify",
-  "author": {
-    "name": "James Halliday",
-    "email": "mail@substack.net",
-    "url": "http://substack.net"
-  },
-  "bugs": {
-    "url": "https://github.com/substack/node-resolve/issues"
-  },
-  "bundleDependencies": false,
-  "deprecated": false,
-  "description": "resolve like require.resolve() on behalf of files asynchronously and synchronously",
-  "devDependencies": {
-    "tap": "~0.4.0"
-  },
-  "homepage": "https://github.com/substack/node-resolve#readme",
-  "keywords": [
-    "resolve",
-    "require",
-    "node",
-    "module"
-  ],
-  "license": "MIT",
-  "main": "index.js",
-  "name": "resolve",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/substack/node-resolve.git"
-  },
-  "scripts": {
-    "test": "tap test/*.js"
-  },
-  "version": "0.6.3"
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/readme.markdown b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/readme.markdown
deleted file mode 100644
index 9a9955b95e6..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/readme.markdown
+++ /dev/null
@@ -1,144 +0,0 @@
-# resolve
-
-implements the [node `require.resolve()`
-algorithm](http://nodejs.org/docs/v0.4.8/api/all.html#all_Together...)
-such that you can `require.resolve()` on behalf of a file asynchronously and
-synchronously
-
-[![build status](https://secure.travis-ci.org/substack/node-resolve.png)](http://travis-ci.org/substack/node-resolve)
-
-# example
-
-asynchronously resolve:
-
-``` js
-var resolve = require('resolve');
-resolve('tap', { basedir: __dirname }, function (err, res) {
-    if (err) console.error(err)
-    else console.log(res)
-});
-```
-
-```
-$ node example/async.js
-/home/substack/projects/node-resolve/node_modules/tap/lib/main.js
-```
-
-synchronously resolve:
-
-``` js
-var resolve = require('resolve');
-var res = resolve.sync('tap', { basedir: __dirname });
-console.log(res);
-```
-
-```
-$ node example/sync.js
-/home/substack/projects/node-resolve/node_modules/tap/lib/main.js
-```
-
-# methods
-
-``` js
-var resolve = require('resolve')
-```
-
-## resolve(pkg, opts={}, cb)
-
-Asynchronously resolve the module path string `pkg` into `cb(err, res)`.
-
-options are:
-
-* opts.basedir - directory to begin resolving from
-
-* opts.package - package from which module is being loaded
-
-* opts.extensions - array of file extensions to search in order
-
-* opts.readFile - how to read files asynchronously
-
-* opts.isFile - function to asynchronously test whether a file exists
-
-* opts.packageFilter - transform the parsed package.json contents before looking
-at the "main" field
-
-* opts.paths - require.paths array to use if nothing is found on the normal
-node_modules recursive walk (probably don't use this)
-
-* opts.moduleDirectory - directory to recursively look for modules in. default:
-`"node_modules"`
-
-default `opts` values:
-
-``` javascript
-{
-    paths: [],
-    basedir: __dirname,
-    extensions: [ '.js' ],
-    readFile: fs.readFile,
-    isFile: function (file, cb) {
-        fs.stat(file, function (err, stat) {
-            if (err && err.code === 'ENOENT') cb(null, false)
-            else if (err) cb(err)
-            else cb(null, stat.isFile())
-        });
-    },
-    moduleDirectory: 'node_modules'
-}
-```
-
-## resolve.sync(pkg, opts)
-
-Synchronously resolve the module path string `pkg`, returning the result and
-throwing an error when `pkg` can't be resolved.
-
-options are:
-
-* opts.basedir - directory to begin resolving from
-
-* opts.extensions - array of file extensions to search in order
-
-* opts.readFile - how to read files synchronously
-
-* opts.isFile - function to synchronously test whether a file exists
-
-* opts.packageFilter - transform the parsed package.json contents before looking
-at the "main" field
-
-* opts.paths - require.paths array to use if nothing is found on the normal
-node_modules recursive walk (probably don't use this)
-
-* opts.moduleDirectory - directory to recursively look for modules in. default:
-`"node_modules"`
-
-default `opts` values:
-
-``` javascript
-{
-    paths: [],
-    basedir: __dirname,
-    extensions: [ '.js' ],
-    readFileSync: fs.readFileSync,
-    isFile: function (file) {
-        try { return fs.statSync(file).isFile() }
-        catch (e) { return false }
-    },
-    moduleDirectory: 'node_modules'
-}
-````
-
-## resolve.isCore(pkg)
-
-Return whether a package is in core.
-
-# install
-
-With [npm](https://npmjs.org) do:
-
-```
-npm install resolve
-```
-
-# license
-
-MIT
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/core.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/core.js
deleted file mode 100644
index 88a510cd112..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/core.js
+++ /dev/null
@@ -1,12 +0,0 @@
-var test = require('tap').test;
-var resolve = require('../');
-
-test('core modules', function (t) {
-    t.ok(resolve.isCore('fs'));
-    t.ok(resolve.isCore('net'));
-    t.ok(resolve.isCore('http'));
-    
-    t.ok(!resolve.isCore('seq'));
-    t.ok(!resolve.isCore('../'));
-    t.end();
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/faulty_basedir.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/faulty_basedir.js
deleted file mode 100644
index 9932e602941..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/faulty_basedir.js
+++ /dev/null
@@ -1,14 +0,0 @@
-var path = require('path');
-var test = require('tap').test;
-var resolve = require('../');
-
-test('faulty basedir must produce error in windows', function (t) {
-    t.plan(1);
-
-    var resolverDir = 'C:\\a\\b\\c\\d';
-
-    resolve('tap/lib/main.js', { basedir : resolverDir }, function (err, res, pkg) {
-        t.equal(true, !!err);
-    });
-
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/filter.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/filter.js
deleted file mode 100644
index a65e59a8c78..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/filter.js
+++ /dev/null
@@ -1,18 +0,0 @@
-var test = require('tap').test;
-var resolve = require('../');
-
-test('filter', function (t) {
-    t.plan(2);
-    var dir = __dirname + '/resolver';
-    resolve('./baz', {
-        basedir : dir,
-        packageFilter : function (pkg) {
-            pkg.main = 'doom';
-            return pkg;
-        }
-    }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/baz/doom.js');
-        t.equal(pkg.main, 'doom');
-    });
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/filter_sync.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/filter_sync.js
deleted file mode 100644
index 8856c01a880..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/filter_sync.js
+++ /dev/null
@@ -1,15 +0,0 @@
-var test = require('tap').test;
-var resolve = require('../');
-
-test('filter', function (t) {
-    var dir = __dirname + '/resolver';
-    var res = resolve.sync('./baz', {
-        basedir : dir,
-        packageFilter : function (pkg) {
-            pkg.main = 'doom'
-            return pkg;
-        }
-    });
-    t.equal(res, dir + '/baz/doom.js');
-    t.end();
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/mock.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/mock.js
deleted file mode 100644
index e284f987fe4..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/mock.js
+++ /dev/null
@@ -1,142 +0,0 @@
-var test = require('tap').test;
-var resolve = require('../');
-
-test('mock', function (t) {
-    t.plan(6);
-    
-    var files = {
-        '/foo/bar/baz.js' : 'beep'
-    };
-    
-    function opts (basedir) {
-        return {
-            basedir : basedir,
-            isFile : function (file, cb) {
-                cb(null, files.hasOwnProperty(file));
-            },
-            readFile : function (file, cb) {
-                cb(null, files[file]);
-            }
-        }
-    }
-    
-    resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, '/foo/bar/baz.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, '/foo/bar/baz.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('baz', opts('/foo/bar'), function (err, res) {
-        t.equal(err.message, "Cannot find module 'baz' from '/foo/bar'");
-    });
-    
-    resolve('../baz', opts('/foo/bar'), function (err, res) {
-        t.equal(err.message, "Cannot find module '../baz' from '/foo/bar'");
-    });
-});
-
-test('mock from package', function (t) {
-    t.plan(6);
-    
-    var files = {
-        '/foo/bar/baz.js' : 'beep'
-    };
-    
-    function opts (basedir) {
-        return {
-            basedir : basedir,
-            package : { main: 'bar' },
-            isFile : function (file, cb) {
-                cb(null, files.hasOwnProperty(file));
-            },
-            readFile : function (file, cb) {
-                cb(null, files[file]);
-            }
-        }
-    }
-    
-    resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, '/foo/bar/baz.js');
-        t.equal(pkg.main, 'bar');
-    });
-    
-    resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, '/foo/bar/baz.js');
-        t.equal(pkg.main, 'bar');
-    });
-    
-    resolve('baz', opts('/foo/bar'), function (err, res) {
-        t.equal(err.message, "Cannot find module 'baz' from '/foo/bar'");
-    });
-    
-    resolve('../baz', opts('/foo/bar'), function (err, res) {
-        t.equal(err.message, "Cannot find module '../baz' from '/foo/bar'");
-    });
-});
-
-test('mock package', function (t) {
-    t.plan(2);
-    
-    var files = {
-        '/foo/node_modules/bar/baz.js' : 'beep',
-        '/foo/node_modules/bar/package.json' : JSON.stringify({
-            main : './baz.js'
-        })
-    };
-    
-    function opts (basedir) {
-        return {
-            basedir : basedir,
-            isFile : function (file, cb) {
-                cb(null, files.hasOwnProperty(file));
-            },
-            readFile : function (file, cb) {
-                cb(null, files[file]);
-            }
-        }
-    }
-    
-    resolve('bar', opts('/foo'), function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, '/foo/node_modules/bar/baz.js');
-        t.equal(pkg.main, './baz.js');
-    });
-});
-
-test('mock package from package', function (t) {
-    t.plan(2);
-    
-    var files = {
-        '/foo/node_modules/bar/baz.js' : 'beep',
-        '/foo/node_modules/bar/package.json' : JSON.stringify({
-            main : './baz.js'
-        })
-    };
-    
-    function opts (basedir) {
-        return {
-            basedir : basedir,
-            package : { main: 'bar' },
-            isFile : function (file, cb) {
-                cb(null, files.hasOwnProperty(file));
-            },
-            readFile : function (file, cb) {
-                cb(null, files[file]);
-            }
-        }
-    }
-    
-    resolve('bar', opts('/foo'), function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, '/foo/node_modules/bar/baz.js');
-        t.equal(pkg.main, './baz.js');
-    });
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/mock_sync.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/mock_sync.js
deleted file mode 100644
index 963afa536d9..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/mock_sync.js
+++ /dev/null
@@ -1,68 +0,0 @@
-var test = require('tap').test;
-var resolve = require('../');
-
-test('mock', function (t) {
-    t.plan(4);
-    
-    var files = {
-        '/foo/bar/baz.js' : 'beep'
-    };
-    
-    function opts (basedir) {
-        return {
-            basedir : basedir,
-            isFile : function (file) {
-                return files.hasOwnProperty(file)
-            },
-            readFileSync : function (file) {
-                return files[file]
-            }
-        }
-    }
-    
-    t.equal(
-        resolve.sync('./baz', opts('/foo/bar')),
-        '/foo/bar/baz.js'
-    );
-    
-    t.equal(
-        resolve.sync('./baz.js', opts('/foo/bar')),
-        '/foo/bar/baz.js'
-    );
-    
-    t.throws(function () {
-        resolve.sync('baz', opts('/foo/bar'));
-    });
-
-    t.throws(function () {
-        resolve.sync('../baz', opts('/foo/bar'));
-    });
-});
-
-test('mock package', function (t) {
-    t.plan(1);
-    
-    var files = {
-        '/foo/node_modules/bar/baz.js' : 'beep',
-        '/foo/node_modules/bar/package.json' : JSON.stringify({
-            main : './baz.js'
-        })
-    };
-    
-    function opts (basedir) {
-        return {
-            basedir : basedir,
-            isFile : function (file) {
-                return files.hasOwnProperty(file)
-            },
-            readFileSync : function (file) {
-                return files[file]
-            }
-        }
-    }
-    
-    t.equal(
-        resolve.sync('bar', opts('/foo')),
-        '/foo/node_modules/bar/baz.js'
-    );
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path.js
deleted file mode 100644
index c74ac395762..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path.js
+++ /dev/null
@@ -1,36 +0,0 @@
-var test = require('tap').test;
-var resolve = require('../');
-
-test('$NODE_PATH', function (t) {
-    t.plan(3);
-    
-    resolve('aaa', {
-        paths: [
-            __dirname + '/node_path/x',
-            __dirname + '/node_path/y'
-        ],
-        basedir: __dirname,
-    }, function (err, res) {
-        t.equal(res, __dirname + '/node_path/x/aaa/index.js');
-    });
-    
-    resolve('bbb', {
-        paths: [
-            __dirname + '/node_path/x',
-            __dirname + '/node_path/y'
-        ],
-        basedir: __dirname,
-    }, function (err, res) {
-        t.equal(res, __dirname + '/node_path/y/bbb/index.js');
-    });
-    
-    resolve('ccc', {
-        paths: [
-            __dirname + '/node_path/x',
-            __dirname + '/node_path/y'
-        ],
-        basedir: __dirname,
-    }, function (err, res) {
-        t.equal(res, __dirname + '/node_path/x/ccc/index.js');
-    });
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/x/aaa/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/x/aaa/index.js
deleted file mode 100644
index 1ea591380df..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/x/aaa/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 'A'
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/x/ccc/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/x/ccc/index.js
deleted file mode 100644
index f186fa7574f..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/x/ccc/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 'C'
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/y/bbb/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/y/bbb/index.js
deleted file mode 100644
index e22dd83c0ca..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/y/bbb/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 'B'
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/y/ccc/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/y/ccc/index.js
deleted file mode 100644
index d0043d1ec4a..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/node_path/y/ccc/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 'CY'
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver.js
deleted file mode 100644
index 1301e55a32c..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver.js
+++ /dev/null
@@ -1,281 +0,0 @@
-var path = require('path');
-var test = require('tap').test;
-var resolve = require('../');
-
-test('async foo', function (t) {
-    t.plan(9);
-    var dir = __dirname + '/resolver';
-    
-    resolve('./foo', { basedir : dir }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/foo.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('./foo.js', { basedir : dir }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/foo.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('./foo', { basedir : dir, package: { main: 'resolver' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/foo.js');
-        t.equal(pkg.main, 'resolver');
-    });
-    
-    resolve('./foo.js', { basedir : dir, package: { main: 'resolver' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/foo.js');
-        t.equal(pkg.main, 'resolver');
-    });
-    
-    resolve('foo', { basedir : dir }, function (err) {
-        t.equal(err.message, "Cannot find module 'foo' from '" + path.resolve(dir) + "'");
-    });
-});
-
-test('bar', function (t) {
-    t.plan(6);
-    var dir = __dirname + '/resolver';
-    
-    resolve('foo', { basedir : dir + '/bar' }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/bar/node_modules/foo/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('foo', { basedir : dir + '/bar' }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/bar/node_modules/foo/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('foo', { basedir : dir + '/bar', package: { main: 'bar' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/bar/node_modules/foo/index.js');
-        t.equal(pkg, undefined);
-    });
-});
-
-test('baz', function (t) {
-    t.plan(4);
-    var dir = __dirname + '/resolver';
-    
-    resolve('./baz', { basedir : dir }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/baz/quux.js');
-        t.equal(pkg.main, 'quux.js');
-    });
-    
-    resolve('./baz', { basedir : dir, package: { main: 'resolver' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/baz/quux.js');
-        t.equal(pkg.main, 'quux.js');
-    });
-});
-
-test('biz', function (t) {
-    t.plan(24);
-    var dir = __dirname + '/resolver/biz/node_modules';
-    
-    resolve('./grux', { basedir : dir }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/grux/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('./grux', { basedir : dir, package: { main: 'biz' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/grux/index.js');
-        t.equal(pkg.main, 'biz');
-    });
-    
-    resolve('./garply', { basedir : dir }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/garply/lib/index.js');
-        t.equal(pkg.main, './lib');
-    });
-    
-    resolve('./garply', { basedir : dir, package: { main: 'biz' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/garply/lib/index.js');
-        t.equal(pkg.main, './lib');
-    });
-    
-    resolve('tiv', { basedir : dir + '/grux' }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/tiv/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('tiv', { basedir : dir + '/grux', package: { main: 'grux' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/tiv/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('tiv', { basedir : dir + '/garply' }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/tiv/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('tiv', { basedir : dir + '/garply', package: { main: './lib' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/tiv/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('grux', { basedir : dir + '/tiv' }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/grux/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('grux', { basedir : dir + '/tiv', package: { main: 'tiv' }  }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/grux/index.js');
-        t.equal(pkg, undefined);
-    });
-    
-    resolve('garply', { basedir : dir + '/tiv' }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/garply/lib/index.js');
-        t.equal(pkg.main, './lib');
-    });
-    
-    resolve('garply', { basedir : dir + '/tiv', package: { main: 'tiv' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/garply/lib/index.js');
-        t.equal(pkg.main, './lib');
-    });
-});
-
-test('quux', function (t) {
-    t.plan(2);
-    var dir = __dirname + '/resolver/quux';
-    
-    resolve('./foo', { basedir : dir, package: { main: 'quux' } }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/foo/index.js');
-        t.equal(pkg.main, 'quux');
-    });
-});
-
-test('normalize', function (t) {
-    t.plan(2);
-    var dir = __dirname + '/resolver/biz/node_modules/grux';
-    
-    resolve('../grux', { basedir : dir }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/index.js');
-        t.equal(pkg, undefined);
-    });
-});
-
-test('cup', function (t) {
-    t.plan(3);
-    var dir = __dirname + '/resolver';
-    
-    resolve('./cup', { basedir : dir, extensions : [ '.js', '.coffee' ] },
-    function (err, res) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/cup.coffee');
-    });
-    
-    resolve('./cup.coffee', { basedir : dir }, function (err, res) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/cup.coffee');
-    });
-    
-    resolve('./cup', { basedir : dir, extensions : [ '.js' ] },
-    function (err, res) {
-        t.equal(err.message, "Cannot find module './cup' from '" + path.resolve(dir) + "'");
-    });
-});
-
-test('mug', function (t) {
-    t.plan(3);
-    var dir = __dirname + '/resolver';
-    
-    resolve('./mug', { basedir : dir }, function (err, res) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/mug.js');
-    });
-    
-    resolve('./mug', { basedir : dir, extensions : [ '.coffee', '.js' ] },
-    function (err, res) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/mug.coffee');
-    });
-    
-    resolve('./mug', { basedir : dir, extensions : [ '.js', '.coffee' ] },
-    function (err, res) {
-        t.equal(res, dir + '/mug.js');
-    });
-});
-
-test('other path', function (t) {
-    t.plan(4);
-    var resolverDir = __dirname + '/resolver';
-    var dir = resolverDir + '/bar';
-    var otherDir = resolverDir + '/other_path';
-    
-    resolve('root', { basedir : dir, paths: [otherDir] }, function (err, res) {
-        if (err) t.fail(err);
-        t.equal(res, resolverDir + '/other_path/root.js');
-    });
-    
-    resolve('lib/other-lib', { basedir : dir, paths: [otherDir] },
-    function (err, res) {
-        if (err) t.fail(err);
-        t.equal(res, resolverDir + '/other_path/lib/other-lib.js');
-    });
-    
-    resolve('root', { basedir : dir, }, function (err, res) {
-        t.equal(err.message, "Cannot find module 'root' from '" + path.resolve(dir) + "'");
-    });
-    
-    resolve('zzz', { basedir : dir, paths: [otherDir] }, function (err, res) {
-        t.equal(err.message, "Cannot find module 'zzz' from '" + path.resolve(dir) + "'");
-    });
-});
-
-test('incorrect main', function (t) {
-    t.plan(1)
-
-    var resolverDir = __dirname + '/resolver';
-    var dir = resolverDir + '/incorrect_main';
-
-    resolve('./incorrect_main', { basedir : resolverDir }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, dir + '/index.js');
-    });
-});
-
-test('without basedir', function (t) {
-    t.plan(1);
-
-    var dir = __dirname + '/resolver/without_basedir';
-    var tester = require(dir + '/main.js');
-
-    tester(t, function (err, res, pkg){
-        if (err) {
-	  t.fail(err);
-	} else {
-          t.equal(res, dir + '/node_modules/mymodule.js');
-	}
-    });
-});
-
-test('#25: node modules with the same name as node stdlib modules', function (t) {
-    t.plan(1);
-
-    var resolverDir = __dirname + '/resolver/punycode';
-
-    resolve('punycode', { basedir : resolverDir }, function (err, res, pkg) {
-        if (err) t.fail(err);
-        t.equal(res, resolverDir + '/node_modules/punycode/index.js');
-    });
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/bar/node_modules/foo/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/bar/node_modules/foo/index.js
deleted file mode 100644
index bd816eaba4c..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/bar/node_modules/foo/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 1;
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/doom.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/doom.js
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/package.json b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/package.json
deleted file mode 100644
index 6b81dcddfc4..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/package.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "main" : "quux.js"
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/quux.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/quux.js
deleted file mode 100644
index bd816eaba4c..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/baz/quux.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 1;
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/garply/lib/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/garply/lib/index.js
deleted file mode 100644
index 0379e29f701..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/garply/lib/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 'hello garply';
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/garply/package.json b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/garply/package.json
deleted file mode 100644
index babaac58fdd..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/garply/package.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "main" : "./lib"
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/grux/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/grux/index.js
deleted file mode 100644
index 49960555ab4..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/grux/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require('tiv') * 100;
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/tiv/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/tiv/index.js
deleted file mode 100644
index 690aad34a46..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/biz/node_modules/tiv/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 3;
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/cup.coffee b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/cup.coffee
deleted file mode 100644
index 8b137891791..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/cup.coffee
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/foo.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/foo.js
deleted file mode 100644
index bd816eaba4c..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/foo.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 1;
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/incorrect_main/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/incorrect_main/index.js
deleted file mode 100644
index bc1fb0a6f4e..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/incorrect_main/index.js
+++ /dev/null
@@ -1,2 +0,0 @@
-// this is the actual main file 'index.js', not 'wrong.js' like the package.json would indicate
-module.exports = 1;
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/incorrect_main/package.json b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/incorrect_main/package.json
deleted file mode 100644
index 1592ed39371..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/incorrect_main/package.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "main" : "wrong.js"
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/mug.coffee b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/mug.coffee
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/mug.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/mug.js
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/other_path/lib/other-lib.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/other_path/lib/other-lib.js
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/other_path/root.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/other_path/root.js
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/punycode/node_modules/punycode/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/punycode/node_modules/punycode/index.js
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/quux/foo/index.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/quux/foo/index.js
deleted file mode 100644
index bd816eaba4c..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/quux/foo/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 1;
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/without_basedir/main.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/without_basedir/main.js
deleted file mode 100644
index 5f211e9ca0d..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/without_basedir/main.js
+++ /dev/null
@@ -1,6 +0,0 @@
-resolve = require('../../../');
-
-module.exports = function(t, cb) {
-  resolve('mymodule', null, cb);
-}
-
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/without_basedir/node_modules/mymodule.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/without_basedir/node_modules/mymodule.js
deleted file mode 100644
index 2b58aa4087d..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver/without_basedir/node_modules/mymodule.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = "The tools we use have a profound (and devious!) influence on our thinking habits, and, therefore, on our thinking abilities.- E. Dijkstra"
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver_sync.js b/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver_sync.js
deleted file mode 100644
index 5f808f34464..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/node_modules/resolve/test/resolver_sync.js
+++ /dev/null
@@ -1,180 +0,0 @@
-var test = require('tap').test;
-var resolve = require('../');
-
-test('foo', function (t) {
-    var dir = __dirname + '/resolver';
-    
-    t.equal(
-        resolve.sync('./foo', { basedir : dir }),
-        dir + '/foo.js'
-    );
-    
-    t.equal(
-        resolve.sync('./foo.js', { basedir : dir }),
-        dir + '/foo.js'
-    );
-    
-    t.throws(function () {
-        resolve.sync('foo', { basedir : dir });
-    });
-    
-    t.end();
-});
-
-test('bar', function (t) {
-    var dir = __dirname + '/resolver';
-    
-    t.equal(
-        resolve.sync('foo', { basedir : dir + '/bar' }),
-        dir + '/bar/node_modules/foo/index.js'
-    );
-    t.end();
-});
-
-test('baz', function (t) {
-    var dir = __dirname + '/resolver';
-    
-    t.equal(
-        resolve.sync('./baz', { basedir : dir }),
-        dir + '/baz/quux.js'
-    );
-    t.end();
-});
-
-test('biz', function (t) {
-    var dir = __dirname + '/resolver/biz/node_modules';
-    t.equal(
-        resolve.sync('./grux', { basedir : dir }),
-        dir + '/grux/index.js'
-    );
-    
-    t.equal(
-        resolve.sync('tiv', { basedir : dir + '/grux' }),
-        dir + '/tiv/index.js'
-    );
-    
-    t.equal(
-        resolve.sync('grux', { basedir : dir + '/tiv' }),
-        dir + '/grux/index.js'
-    );
-    t.end();
-});
-
-test('normalize', function (t) {
-    var dir = __dirname + '/resolver/biz/node_modules/grux';
-    t.equal(
-        resolve.sync('../grux', { basedir : dir }),
-        dir + '/index.js'
-    );
-    t.end();
-});
-
-test('cup', function (t) {
-    var dir = __dirname + '/resolver';
-    t.equal(
-        resolve.sync('./cup', {
-            basedir : dir,
-            extensions : [ '.js', '.coffee' ]
-        }),
-        dir + '/cup.coffee'
-    );
-    
-    t.equal(
-        resolve.sync('./cup.coffee', {
-            basedir : dir
-        }),
-        dir + '/cup.coffee'
-    );
-    
-    t.throws(function () {
-        resolve.sync('./cup', {
-            basedir : dir,
-            extensions : [ '.js' ]
-        })
-    });
-    
-    t.end();
-});
-
-test('mug', function (t) {
-    var dir = __dirname + '/resolver';
-    t.equal(
-        resolve.sync('./mug', { basedir : dir }),
-        dir + '/mug.js'
-    );
-    
-    t.equal(
-        resolve.sync('./mug', {
-            basedir : dir,
-            extensions : [ '.coffee', '.js' ]
-        }),
-        dir + '/mug.coffee'
-    );
-    
-    t.equal(
-        resolve.sync('./mug', {
-            basedir : dir,
-            extensions : [ '.js', '.coffee' ]
-        }),
-        dir + '/mug.js'
-    );
-    
-    t.end();
-});
-
-test('other path', function (t) {
-    var resolverDir = __dirname + '/resolver';
-    var dir = resolverDir + '/bar';
-    var otherDir = resolverDir + '/other_path';
-
-    var path = require('path');
-    
-    t.equal(
-        resolve.sync('root', {
-            basedir : dir,
-            paths: [otherDir] }),
-        resolverDir + '/other_path/root.js'
-    );
-    
-    t.equal(
-        resolve.sync('lib/other-lib', {
-            basedir : dir,
-            paths: [otherDir] }),
-        resolverDir + '/other_path/lib/other-lib.js'
-    );
-
-    t.throws(function () {
-        resolve.sync('root', { basedir : dir, });
-    });
-    
-    t.throws(function () {
-        resolve.sync('zzz', {
-            basedir : dir,
-            paths: [otherDir] });
-    });
-    
-    t.end();
-});
-
-test('incorrect main', function (t) {
-    var resolverDir = __dirname + '/resolver';
-    var dir = resolverDir + '/incorrect_main';
-
-    t.equal(
-        resolve.sync('./incorrect_main', { basedir : resolverDir }),
-        dir + '/index.js'
-    )
-
-    t.end()
-});
-
-test('#25: node modules with the same name as node stdlib modules', function (t) {
-    var resolverDir = __dirname + '/resolver/punycode';
-
-    t.equal(
-        resolve.sync('punycode', { basedir : resolverDir }),
-        resolverDir + '/node_modules/punycode/index.js'
-    )
-
-    t.end()
-});
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/package.json b/packages/web/src/utils/visualizer/gl-vignette-background/package.json
deleted file mode 100644
index 66ab053fdfc..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/package.json
+++ /dev/null
@@ -1,109 +0,0 @@
-{
-  "_from": "gl-vignette-background@^1.0.4",
-  "_id": "gl-vignette-background@1.0.4",
-  "_inBundle": false,
-  "_integrity": "sha1-ixMetk2lcp6xT5oUxHgt7Smq9Z0=",
-  "_location": "/gl-vignette-background",
-  "_phantomChildren": {
-    "concat-stream": "1.6.2",
-    "cssauron": "0.0.2",
-    "cssauron-glsl": "0.0.0",
-    "emit-function": "0.0.2",
-    "gl-shader-core": "2.2.0",
-    "glsl-deparser": "0.0.2",
-    "glsl-extract": "0.0.2",
-    "glsl-min-stream": "0.0.2",
-    "glslify-stream": "0.4.1",
-    "new-from": "0.0.3",
-    "nopt": "2.2.1",
-    "replace-method": "0.0.0",
-    "shortest": "0.0.0",
-    "sleuth": "0.1.1",
-    "static-eval": "0.2.4",
-    "through": "2.3.8"
-  },
-  "_requested": {
-    "type": "range",
-    "registry": true,
-    "raw": "gl-vignette-background@^1.0.4",
-    "name": "gl-vignette-background",
-    "escapedName": "gl-vignette-background",
-    "rawSpec": "^1.0.4",
-    "saveSpec": null,
-    "fetchSpec": "^1.0.4"
-  },
-  "_requiredBy": [
-    "#USER",
-    "/"
-  ],
-  "_resolved": "https://registry.npmjs.org/gl-vignette-background/-/gl-vignette-background-1.0.4.tgz",
-  "_shasum": "8b131eb64da5729eb14f9a14c4782ded29aaf59d",
-  "_spec": "gl-vignette-background@^1.0.4",
-  "_where": "/Users/forrest/Audius/vis-test",
-  "author": {
-    "name": "Matt DesLauriers",
-    "email": "dave.des@gmail.com"
-  },
-  "browserify": {
-    "transform": [
-      "glslify"
-    ]
-  },
-  "bugs": {
-    "url": "https://github.com/mattdesl/gl-vignette-background/issues"
-  },
-  "bundleDependencies": false,
-  "dependencies": {
-    "deepcopy": "^0.6.3",
-    "gl-mat4": "^1.0.0",
-    "gl-quad": "^1.0.0",
-    "gl-shader-core": "^2.2.0",
-    "glsl-random": "0.0.5",
-    "glslify": "^1.6.0",
-    "inherits": "^2.0.1"
-  },
-  "deprecated": false,
-  "description": "a soft gradient background in WebGL",
-  "devDependencies": {
-    "canvas-testbed": "^1.0.0",
-    "color-string": "^0.2.1",
-    "tape": "~2.13.2"
-  },
-  "homepage": "https://github.com/mattdesl/gl-vignette-background",
-  "keywords": [
-    "glsl",
-    "gl",
-    "webgl",
-    "gl-modules",
-    "stackgl",
-    "texture",
-    "image",
-    "background",
-    "vignette",
-    "gradient"
-  ],
-  "license": "MIT",
-  "main": "index.js",
-  "name": "gl-vignette-background",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/mattdesl/gl-vignette-background.git"
-  },
-  "scripts": {
-    "test": "tape test.js"
-  },
-  "testling": {
-    "files": "test.js",
-    "browsers": [
-      "ie/6..latest",
-      "chrome/22..latest",
-      "firefox/16..latest",
-      "safari/latest",
-      "opera/11.0..latest",
-      "iphone/6",
-      "ipad/6",
-      "android-browser/latest"
-    ]
-  },
-  "version": "1.0.4"
-}
diff --git a/packages/web/src/utils/visualizer/gl-vignette-background/vert.glsl b/packages/web/src/utils/visualizer/gl-vignette-background/vert.glsl
deleted file mode 100644
index e2d412a6018..00000000000
--- a/packages/web/src/utils/visualizer/gl-vignette-background/vert.glsl
+++ /dev/null
@@ -1,12 +0,0 @@
-attribute vec4 position;
-attribute vec2 uv;
-uniform mat4 projection;
-uniform mat4 view;
-uniform mat4 model;
-
-varying vec2 vUv;
-
-void main() {
-	gl_Position = projection * view * model * position;
-	vUv = uv;
-}
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/presets.ts b/packages/web/src/utils/visualizer/presets.ts
new file mode 100644
index 00000000000..d34796567f0
--- /dev/null
+++ b/packages/web/src/utils/visualizer/presets.ts
@@ -0,0 +1,85 @@
+// Lazy-loaded Milkdrop preset management for butterchurn.
+// The default `butterchurn-presets` entry only ships ~100 presets; additional
+// packs are merged so next/prev/random have hundreds of real presets to cycle.
+//
+// Curated names are only used to *order* favorites first when they exist in the
+// merged map — we never restrict cycling to curated-only (that caused a single-
+// preset bug when almost no curated strings matched the default pack).
+
+type PresetMap = Record<string, object>
+
+let cachedPresets: PresetMap | null = null
+
+/** Favorites shown first in the cycle list when those keys exist in the pack. */
+const CURATED_PRESET_NAMES = [
+  'Flexi - mindblob [shiny mix]',
+  'martin - liquid crystal spiral',
+  'Geiss - Cosmic Dust 2 - Resonant Freq',
+  'Rovastar - Fractopia (Blueprint of a Snowflake)',
+  'Zylot - Color Twist / Colour Organ',
+  'Aderrasi - Airhandler (Sunset Remix)',
+  'Geiss - Swirl 1',
+  'Flexi - smouldering',
+  'martin - neon worms',
+  'Geiss - Cruzin'
+]
+
+function mergePresetModule(m: Record<string, unknown>): PresetMap {
+  const raw =
+    typeof m.getPresets === 'function'
+      ? (m.getPresets as () => PresetMap)()
+      : (m as { default?: { getPresets?: () => PresetMap } }).default
+          ?.getPresets?.() ??
+        (m as { default?: PresetMap }).default ??
+        m
+  return raw as PresetMap
+}
+
+export async function loadPresets(): Promise<PresetMap> {
+  if (cachedPresets) return cachedPresets
+
+  const [
+    mainMod,
+    extraMod,
+    extra2Mod,
+    md1Mod
+  ] = await Promise.all([
+    import('butterchurn-presets'),
+    import('butterchurn-presets/lib/butterchurnPresetsExtra.min.js'),
+    import('butterchurn-presets/lib/butterchurnPresetsExtra2.min.js'),
+    import('butterchurn-presets/lib/butterchurnPresetsMD1.min.js')
+  ])
+
+  cachedPresets = {
+    ...mergePresetModule(mainMod as Record<string, unknown>),
+    ...mergePresetModule(extraMod as Record<string, unknown>),
+    ...mergePresetModule(extra2Mod as Record<string, unknown>),
+    ...mergePresetModule(md1Mod as Record<string, unknown>)
+  }
+
+  return cachedPresets
+}
+
+export function getPresetKeys(presets: PresetMap): string[] {
+  const allKeys = Object.keys(presets)
+  const curatedMatches = CURATED_PRESET_NAMES.filter((name) =>
+    allKeys.includes(name)
+  )
+  const curatedSet = new Set(curatedMatches)
+  const remainder = allKeys.filter((k) => !curatedSet.has(k))
+  // Curated first (nicer defaults at the start of the list), then full library
+  return [...curatedMatches, ...remainder]
+}
+
+export function getRandomPresetKey(
+  presets: PresetMap,
+  currentKey?: string | null
+): string {
+  const keys = getPresetKeys(presets)
+  if (keys.length <= 1) return keys[0] ?? ''
+  let next: string
+  do {
+    next = keys[Math.floor(Math.random() * keys.length)]
+  } while (next === currentKey)
+  return next
+}
diff --git a/packages/web/src/utils/visualizer/shaders/visualizer-1.frag b/packages/web/src/utils/visualizer/shaders/visualizer-1.frag
deleted file mode 100644
index 8fd82fad44e..00000000000
--- a/packages/web/src/utils/visualizer/shaders/visualizer-1.frag
+++ /dev/null
@@ -1,43 +0,0 @@
-precision highp float;
-
-uniform vec3 color;
-uniform float opacity;
-varying float vAngle;
-
-// Colors
-uniform float r1;
-uniform float g1;
-uniform float b1;
-
-uniform float r2;
-uniform float g2;
-uniform float b2;
-
-uniform float r3;
-uniform float g3;
-uniform float b3;
-
-#define PI 3.14
-
-void main() {
-  vec3 tCol = color;
-
-  float interp = sin(vAngle * 1.0);
-  float finalR;
-  float finalG;
-  float finalB;
-  if (interp > 0.0) {
-    finalR = mix(r1, r2, interp);
-    finalG = mix(g1, g2, interp);
-    finalB = mix(b1, b2, interp);
-  } else {
-    finalR = mix(r1, r3, -1.0 * interp);
-    finalG = mix(g1, g3, -1.0 * interp);
-    finalB = mix(b1, b3, -1.0 * interp);
-  }
-
-  tCol = vec3(finalR, finalG, finalB);
-  
-  gl_FragColor = vec4(tCol, opacity);
-  gl_FragColor.rgb *= gl_FragColor.a;
-}
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/shaders/visualizer-1.vert b/packages/web/src/utils/visualizer/shaders/visualizer-1.vert
deleted file mode 100644
index cb4749621c3..00000000000
--- a/packages/web/src/utils/visualizer/shaders/visualizer-1.vert
+++ /dev/null
@@ -1,122 +0,0 @@
-attribute vec3 position;
-attribute float direction; 
-attribute vec3 next;
-attribute vec3 previous;
-
-uniform sampler2D audioTexture;
-uniform mat4 projection;
-uniform mat4 model;
-uniform mat4 view;
-uniform float aspect;
-uniform float radius;
-uniform float index;
-
-uniform float thickness;
-uniform float iGlobalTime;
-uniform int miter;
-
-varying float vAngle;
-varying vec2 uvCoords;
-
-#define HAS_VERTEX_SAMPLER
-#define PI 3.14
-
-#pragma glslify: analyse = require('gl-audio-analyser')
-#pragma glslify: noise4d = require('glsl-noise/simplex/4d')
-#pragma glslify: noise3d = require('glsl-noise/simplex/3d')
-
-vec4 line3D (vec3 positionOffset, float computedThickness) {
-  vec2 aspectVec = vec2(aspect, 1.0);
-  mat4 projViewModel = projection * view * model;
-  vec4 previousProjected = projViewModel * vec4(previous + positionOffset, 1.0);
-  vec4 currentProjected = projViewModel * vec4(position + positionOffset, 1.0);
-  vec4 nextProjected = projViewModel * vec4(next + positionOffset, 1.0);
-
-  //get 2D screen space with W divide and aspect correction
-  vec2 currentScreen = currentProjected.xy / currentProjected.w * aspectVec;
-  vec2 previousScreen = previousProjected.xy / previousProjected.w * aspectVec;
-  vec2 nextScreen = nextProjected.xy / nextProjected.w * aspectVec;
-
-  float len = computedThickness;
-  float orientation = direction;
-
-  //starting point uses (next - current)
-  vec2 dir = vec2(0.0);
-  if (currentScreen == previousScreen) {
-    dir = normalize(nextScreen - currentScreen);
-  } 
-  //ending point uses (current - previous)
-  else if (currentScreen == nextScreen) {
-    dir = normalize(currentScreen - previousScreen);
-  }
-  //somewhere in middle, needs a join
-  else {
-    //get directions from (C - B) and (B - A)
-    vec2 dirA = normalize((currentScreen - previousScreen));
-    if (miter == 1) {
-      vec2 dirB = normalize((nextScreen - currentScreen));
-      //now compute the miter join normal and length
-      vec2 tangent = normalize(dirA + dirB);
-      vec2 perp = vec2(-dirA.y, dirA.x);
-      vec2 miter = vec2(-tangent.y, tangent.x);
-      dir = tangent;
-      len = computedThickness / dot(miter, perp);
-    } else {
-      dir = dirA;
-    }
-  }
-  vec2 normal = vec2(-dir.y, dir.x);
-  normal *= len/2.0;
-  normal.x /= aspect;
-
-  vec4 offset = vec4(normal * orientation, 0.0, 1.0);
-  return currentProjected + offset;
-}
-
-float turb (float angle, float alpha, float scale, float offset) {
-  return alpha * noise3d(vec3(position.x * scale, angle, offset));  
-} 
-
-void main() {
-  #ifdef HAS_VERTEX_SAMPLER
-  float frequencies = analyse(audioTexture, position.x * 0.5 + 0.5);
-  #endif
-  
-  float pinch = smoothstep(0.0, 0.5, 1.0 - abs(position.x));
-  float computedThickness = thickness;
-  computedThickness *= pinch;
-  
-  vec3 offset = vec3(0.0);
-  
-  // we will wrap the lines around like a finger trap
-  float angleOffset = index * PI; // separate each line a bit
-  float twists = 0.5; // twisting factor
-  float radialOffset = 2.0 * PI * position.x;
-  
-  #ifdef HAS_VERTEX_SAMPLER
-  angleOffset *= mix(0.5, 1.5, frequencies);
-  #endif
-  
-  float angle = radialOffset * twists + angleOffset;
-  angle += iGlobalTime;
-  
-  
-  float computedRadius = radius;
-  #ifdef HAS_VERTEX_SAMPLER
-  computedRadius += turb(angle, frequencies * 0.5, 1.0, iGlobalTime * 0.2);
-  #endif
-  computedRadius += turb(angle, 0.1, 6.0, iGlobalTime * 0.25);
-  computedRadius += turb(angle, 0.1, 2.5, iGlobalTime * 0.5);
-  computedRadius *= pinch;
-  #ifdef HAS_VERTEX_SAMPLER
-  computedRadius *= mix(0.65, 1.0, frequencies);
-  #endif
-  
-  vAngle = angle;
-  offset.y = cos(angle) * computedRadius;
-  offset.z = sin(angle) * computedRadius;
-  
-  uvCoords = vec2(position.x * 0.5 + 0.5, sign(direction));
-  gl_Position = line3D(offset, computedThickness);  
-  gl_PointSize = 1.0;
-}
\ No newline at end of file
diff --git a/packages/web/src/utils/visualizer/visualizer-1.js b/packages/web/src/utils/visualizer/visualizer-1.js
deleted file mode 100644
index fef10ccce8d..00000000000
--- a/packages/web/src/utils/visualizer/visualizer-1.js
+++ /dev/null
@@ -1,218 +0,0 @@
-import vertexShader from './shaders/visualizer-1.vert'
-import fragmentShader from './shaders/visualizer-1.frag'
-
-import createLine from './gl-line-3d'
-import vignette from './gl-vignette-background'
-import GLAudioAnalyser from 'utils/visualizer/GLAudioAnalyser'
-import { webglSupported } from 'pages/visualizer/utils'
-
-import createOrbit from 'orbit-controls'
-import createCamera from 'perspective-camera'
-import createShader from 'gl-shader'
-
-import setIdentity from 'gl-mat4/identity'
-import newArray from 'array-range'
-import lerp from 'lerp'
-import hexRgbByte from 'hex-rgb'
-import getWebGLContext from 'webgl-context'
-import canvasLoop from 'canvas-loop'
-import canvasFit from 'canvas-fit'
-
-const hexRgb = (str) => hexRgbByte(str).map((x) => x / 255)
-
-let settings = {
-  opacity: 0.5,
-  additive: false,
-  gradient: ['#FFFFFF', '#4F4F4F'],
-  color: '#000',
-  useHue: true
-}
-
-const webglExists = webglSupported()
-const gl = getWebGLContext()
-
-let Visualizer1 = (function () {
-  if (!webglExists) return null
-  const steps = 200
-  const segments = 100
-  const radius = 0.1
-  const thickness = 0.01
-
-  const colorVec = hexRgb(settings.color)
-
-  const canvas = gl.canvas
-
-  const app = canvasLoop(canvas, {
-    scale: window.devicePixelRatio
-  })
-
-  const background = vignette(gl)
-  background.style({
-    aspect: 1,
-    smoothing: [-0.5, 1.0],
-    noiseAlpha: 0.1,
-    offset: [-0.05, -0.15]
-  })
-
-  const identity = setIdentity([])
-  const shader = createShader(gl, vertexShader, fragmentShader)
-
-  const camera = createCamera({
-    fov: (50 * Math.PI) / 180,
-    position: [0, 0, 1],
-    near: 0.0001,
-    far: 10000
-  })
-
-  const controls = createOrbit({
-    element: canvas,
-    distanceBounds: [0.4, 3],
-    distance: 0.4
-  })
-
-  const paths = newArray(segments).map(createSegment)
-  const lines = paths.map((path) => {
-    return createLine(gl, shader, path)
-  })
-
-  let time = 0
-  app.on('tick', (dt) => {
-    time += Math.min(30, dt) / 1000
-
-    const width = gl.drawingBufferWidth
-    const height = gl.drawingBufferHeight
-
-    // set up our camera
-    camera.viewport[2] = width
-    camera.viewport[3] = height
-    controls.update(camera.position, camera.direction, camera.up)
-    camera.update()
-
-    gl.viewport(0, 0, width, height)
-    gl.clearColor(0, 0, 0, 1)
-    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
-
-    const size = Math.min(width, height) * 1.5
-    gl.disable(gl.DEPTH_TEST)
-    background.style({
-      color1: hexRgb(settings.gradient[0]),
-      color2: hexRgb(settings.gradient[1]),
-      scale: [(1 / width) * size, (1 / height) * size]
-    })
-    background.draw()
-
-    gl.disable(gl.DEPTH_TEST)
-    gl.enable(gl.BLEND)
-    if (settings.additive) gl.blendFunc(gl.ONE, gl.ONE)
-    else gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA)
-    gl.disable(gl.CULL_FACE)
-
-    shader.bind()
-    shader.uniforms.iGlobalTime = time
-    shader.uniforms.radius = radius
-    shader.uniforms.audioTexture = 0
-    shader.uniforms.opacity = settings.opacity
-    shader.uniforms.useHue = settings.useHue
-
-    if (analyser) {
-      analyser.bindFrequencies(0)
-    }
-
-    lines.forEach((line, i, list) => {
-      line.color = colorVec
-      line.thickness = thickness
-      line.model = identity
-      line.view = camera.view
-      line.projection = camera.projection
-      line.aspect = width / height
-      line.miter = 0
-      shader.uniforms.index = i / (list.length - 1)
-      line.draw()
-    })
-  })
-
-  function createSegment() {
-    return newArray(steps).map((i, _, list) => {
-      const x = lerp(-1, 1, i / (list.length - 1))
-      return [x, 0, 0]
-    })
-  }
-
-  let analyser = null
-  setDominantColors()
-
-  function show(darkMode) {
-    if (darkMode) {
-      settings.gradient = ['#323232', '#111111']
-      settings.color = '#FFF'
-    } else {
-      settings.gradient = ['#FFFFFF', '#4F4F4F']
-      settings.color = '#000'
-    }
-    window.addEventListener('resize', canvasFit(canvas, window), false)
-    const visWrapper = document.querySelector('.visualizer')
-    if (visWrapper && !visWrapper.hasChildNodes()) {
-      visWrapper.appendChild(canvas)
-    }
-    app.start()
-  }
-
-  /** Binds the visualizer to an AudioStream element. */
-  function bind(audio) {
-    analyser = new GLAudioAnalyser(gl, audio.source, audio.audioCtx)
-  }
-
-  function hide() {
-    const visWrapper = document.querySelector('.visualizer')
-    if (visWrapper && visWrapper.hasChildNodes()) {
-      visWrapper.removeChild(canvas)
-    }
-  }
-
-  function stop() {
-    app.stop()
-  }
-
-  function setDominantColors(colors) {
-    const defaultDominantColors = [
-      { r: 82, g: 224, b: 224 },
-      { r: 110, g: 82, b: 224 },
-      { r: 224, g: 82, b: 167 }
-    ]
-
-    if (!colors || !colors[0]) {
-      colors = defaultDominantColors
-    }
-
-    // Pull out 3 colors
-    const color1 = colors[0]
-    const color2 = colors[1] || color1
-    const color3 = colors[2] || color2
-
-    shader.uniforms.r1 = calcuateColorPixel(color1.r)
-    shader.uniforms.g1 = calcuateColorPixel(color1.g)
-    shader.uniforms.b1 = calcuateColorPixel(color1.b)
-
-    shader.uniforms.r2 = calcuateColorPixel(color2.r)
-    shader.uniforms.g2 = calcuateColorPixel(color2.g)
-    shader.uniforms.b2 = calcuateColorPixel(color2.b)
-
-    shader.uniforms.r3 = calcuateColorPixel(color3.r)
-    shader.uniforms.g3 = calcuateColorPixel(color3.g)
-    shader.uniforms.b3 = calcuateColorPixel(color3.b)
-  }
-
-  function calcuateColorPixel(colorPixel) {
-    return colorPixel > 0 ? colorPixel / 255.0 : 0.0
-  }
-
-  return {
-    bind,
-    stop,
-    show,
-    hide,
-    setDominantColors
-  }
-})()
-
-export default Visualizer1
diff --git a/packages/web/vite.config.ts b/packages/web/vite.config.ts
index 0d4b773c942..2c555d2be87 100644
--- a/packages/web/vite.config.ts
+++ b/packages/web/vite.config.ts
@@ -71,6 +71,11 @@ export default defineConfig(async ({ mode }) => {
       include: [
         'react',
         'react-dom',
+        'butterchurn',
+        'butterchurn-presets',
+        'butterchurn-presets/lib/butterchurnPresetsExtra.min.js',
+        'butterchurn-presets/lib/butterchurnPresetsExtra2.min.js',
+        'butterchurn-presets/lib/butterchurnPresetsMD1.min.js',
         ...(env.VITE_ENV === 'production' ? ['@audius/sdk'] : [])
       ],
       dedupe: ['react', 'react-dom'],

From 69bdee64a054bab5bd1b3da2f7be2b04db49d4c3 Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 15:04:04 -0500
Subject: [PATCH 2/9] Rebind visualizer audio node on source change

Ensure the visualizer rebinds when the audio source or context changes and avoid connecting null/stale nodes. VisualizerProvider: add an audioBindKey (based on currentSrc and audioCtx) to the effect deps and skip setup when not visible. butterchurnVisualizer: guard against missing source, disconnect a previously connected node if it differs from the new one (catching errors), update connectedAudioNode, and always connect the new node. These changes prevent stale audio node hookups after track changes and handle browser quirks.
---
 .../pages/visualizer/VisualizerProvider.tsx   |  6 +++--
 .../utils/visualizer/butterchurnVisualizer.ts | 23 +++++++++++++++----
 2 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.tsx b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
index e4f1b5a4316..0a5b2c3c074 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.tsx
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
@@ -347,8 +347,10 @@ const Visualizer = ({
     }
   }, [showVisualizer])
 
+  const audioBindKey = `${audioPlayer?.audio?.currentSrc ?? ''}|${Boolean(audioPlayer?.audioCtx)}`
+
   useEffect(() => {
-    if (!audioPlayer || !playing) return
+    if (!isVisible || !audioPlayer || !playing) return
     const player = audioPlayer
 
     if (player.audioCtx) {
@@ -358,7 +360,7 @@ const Visualizer = ({
       player.audio.addEventListener('canplay', onCanPlay)
       return () => player.audio.removeEventListener('canplay', onCanPlay)
     }
-  }, [isVisible, playing])
+  }, [isVisible, playing, audioBindKey])
 
   useEffect(() => {
     if (isVisible) {
diff --git a/packages/web/src/utils/visualizer/butterchurnVisualizer.ts b/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
index 88802496a2c..47d14b8e1f4 100644
--- a/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
+++ b/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
@@ -189,10 +189,25 @@ function hide() {
 }
 
 function bind(audioPlayer: AudioPlayerLike) {
-  connectedAudioNode = audioPlayer.source
-
   if (!audioPlayer.audioCtx) return
 
+  const nextSource = audioPlayer.source
+  if (!nextSource) return
+
+  if (
+    visualizer &&
+    connectedAudioNode &&
+    connectedAudioNode !== nextSource
+  ) {
+    try {
+      visualizer.disconnectAudio(connectedAudioNode)
+    } catch {
+      // Stale node after track change / browser quirks
+    }
+  }
+
+  connectedAudioNode = nextSource
+
   // Create canvas early if show() hasn't run yet. React fires this effect before
   // the isVisible effect (component definition order), so canvas may be null here.
   if (!canvas) {
@@ -204,9 +219,7 @@ function bind(audioPlayer: AudioPlayerLike) {
     return
   }
 
-  if (connectedAudioNode) {
-    visualizer.connectAudio(connectedAudioNode)
-  }
+  visualizer.connectAudio(connectedAudioNode)
 }
 
 function stop() {

From 4f9365a9b9696f18c62e934b21e2336bf52cb604 Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 15:06:07 -0500
Subject: [PATCH 3/9] Use main butterchurn-presets bundle

Stop loading the Extra/Extra2/MD1 preset packs and only use the main butterchurn-presets bundle to avoid lower-quality duplicates and reduce bundle/import complexity. Add a missing disconnectAudio type to the butterchurn declaration and remove explicit module declarations for the extra preset packs. Update presets loader to import only the main module and adjust Vite optimizeDeps to stop pre-bundling the removed extra packs.
---
 .../src/types/butterchurn-preset-packs.d.ts   | 14 +--------
 packages/web/src/utils/visualizer/presets.ts  | 31 +++----------------
 packages/web/vite.config.ts                   |  3 --
 3 files changed, 5 insertions(+), 43 deletions(-)

diff --git a/packages/web/src/types/butterchurn-preset-packs.d.ts b/packages/web/src/types/butterchurn-preset-packs.d.ts
index 71358123f42..0e4a32c1aa5 100644
--- a/packages/web/src/types/butterchurn-preset-packs.d.ts
+++ b/packages/web/src/types/butterchurn-preset-packs.d.ts
@@ -8,22 +8,10 @@ declare module 'butterchurn' {
     setRendererSize: (w: number, h: number) => void
     loadPreset: (preset: object, blendTime: number) => void
     connectAudio: (node: AudioNode) => void
+    disconnectAudio: (node: AudioNode) => void
   }
 }
 
-/** butterchurn-presets entry + extra CJS packs (no upstream typings). */
 declare module 'butterchurn-presets' {
   export function getPresets(): Record<string, object>
 }
-
-declare module 'butterchurn-presets/lib/butterchurnPresetsExtra.min.js' {
-  export function getPresets(): Record<string, object>
-}
-
-declare module 'butterchurn-presets/lib/butterchurnPresetsExtra2.min.js' {
-  export function getPresets(): Record<string, object>
-}
-
-declare module 'butterchurn-presets/lib/butterchurnPresetsMD1.min.js' {
-  export function getPresets(): Record<string, object>
-}
diff --git a/packages/web/src/utils/visualizer/presets.ts b/packages/web/src/utils/visualizer/presets.ts
index d34796567f0..b997e7406be 100644
--- a/packages/web/src/utils/visualizer/presets.ts
+++ b/packages/web/src/utils/visualizer/presets.ts
@@ -1,10 +1,5 @@
-// Lazy-loaded Milkdrop preset management for butterchurn.
-// The default `butterchurn-presets` entry only ships ~100 presets; additional
-// packs are merged so next/prev/random have hundreds of real presets to cycle.
-//
-// Curated names are only used to *order* favorites first when they exist in the
-// merged map — we never restrict cycling to curated-only (that caused a single-
-// preset bug when almost no curated strings matched the default pack).
+// Lazy-loaded Milkdrop presets — `butterchurn-presets` npm main bundle only (~100).
+// Extra / Extra2 / MD1 packs are omitted (lower average quality, lots of redundancy).
 
 type PresetMap = Record<string, object>
 
@@ -38,25 +33,8 @@ function mergePresetModule(m: Record<string, unknown>): PresetMap {
 export async function loadPresets(): Promise<PresetMap> {
   if (cachedPresets) return cachedPresets
 
-  const [
-    mainMod,
-    extraMod,
-    extra2Mod,
-    md1Mod
-  ] = await Promise.all([
-    import('butterchurn-presets'),
-    import('butterchurn-presets/lib/butterchurnPresetsExtra.min.js'),
-    import('butterchurn-presets/lib/butterchurnPresetsExtra2.min.js'),
-    import('butterchurn-presets/lib/butterchurnPresetsMD1.min.js')
-  ])
-
-  cachedPresets = {
-    ...mergePresetModule(mainMod as Record<string, unknown>),
-    ...mergePresetModule(extraMod as Record<string, unknown>),
-    ...mergePresetModule(extra2Mod as Record<string, unknown>),
-    ...mergePresetModule(md1Mod as Record<string, unknown>)
-  }
-
+  const mainMod = await import('butterchurn-presets')
+  cachedPresets = mergePresetModule(mainMod as Record<string, unknown>)
   return cachedPresets
 }
 
@@ -67,7 +45,6 @@ export function getPresetKeys(presets: PresetMap): string[] {
   )
   const curatedSet = new Set(curatedMatches)
   const remainder = allKeys.filter((k) => !curatedSet.has(k))
-  // Curated first (nicer defaults at the start of the list), then full library
   return [...curatedMatches, ...remainder]
 }
 
diff --git a/packages/web/vite.config.ts b/packages/web/vite.config.ts
index 2c555d2be87..c930c3c7a87 100644
--- a/packages/web/vite.config.ts
+++ b/packages/web/vite.config.ts
@@ -73,9 +73,6 @@ export default defineConfig(async ({ mode }) => {
         'react-dom',
         'butterchurn',
         'butterchurn-presets',
-        'butterchurn-presets/lib/butterchurnPresetsExtra.min.js',
-        'butterchurn-presets/lib/butterchurnPresetsExtra2.min.js',
-        'butterchurn-presets/lib/butterchurnPresetsMD1.min.js',
         ...(env.VITE_ENV === 'production' ? ['@audius/sdk'] : [])
       ],
       dedupe: ['react', 'react-dom'],

From 1cfd58034d82c31ba348a3d0147d89c8f773593c Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 15:08:35 -0500
Subject: [PATCH 4/9] remove blank line per Stylelint

---
 packages/web/src/pages/visualizer/VisualizerProvider.module.css | 1 -
 1 file changed, 1 deletion(-)

diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.module.css b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
index 89d34e114f0..9cdbd4f3a9c 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.module.css
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
@@ -194,7 +194,6 @@
   max-width: calc(100% - 128px) !important;
 }
 
-
 .panelHeader {
   margin-bottom: 2px;
 }

From 6cc333e577340c6b63b33f984a21790af64245c0 Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 15:20:36 -0500
Subject: [PATCH 5/9] Use ',' and '.' keys for history nav

Replace Left/Right arrow keycodes with comma (188) and period (190) in Visualizer.tsx so history navigation uses ',' for back and '.' for forward. This avoids conflicts with the global play/pause hotkey and clarifies key mappings (onHistoryBack/onHistoryForward).
---
 packages/web/src/pages/visualizer/Visualizer.tsx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/web/src/pages/visualizer/Visualizer.tsx b/packages/web/src/pages/visualizer/Visualizer.tsx
index 61a4e89cc79..39ac5f90221 100644
--- a/packages/web/src/pages/visualizer/Visualizer.tsx
+++ b/packages/web/src/pages/visualizer/Visualizer.tsx
@@ -75,8 +75,8 @@ const Visualizer = ({
       27 /* ESC */: onCloseVisualizer,
       86 /* v */: onToggleVisibility,
       // Space (32) intentionally omitted — conflicts with global play/pause hotkey
-      39 /* Right Arrow */: onHistoryForward,
-      37 /* Left Arrow */: onHistoryBack,
+      190 /* . */: onHistoryForward,
+      188 /* , */: onHistoryBack,
       82 /* r */: onRandomPreset
     }),
     [

From f0844bd5938c477a30dde5a2f517cb241f1b5da2 Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 15:31:17 -0500
Subject: [PATCH 6/9] Hide cursor when controls idle

Add a CSS class (.visualizerCursorHidden) that sets cursor: none and apply it to the visualizer root when top controls are hidden and the options menu is closed. Introduce chromeIdleHidden computed flag (true when !showControls && !optionsOpen) and include the class via cn in VisualizerProvider.tsx so the cursor is hidden during idle UI state while keeping it visible when the options menu is open.
---
 .../web/src/pages/visualizer/VisualizerProvider.module.css  | 5 +++++
 packages/web/src/pages/visualizer/VisualizerProvider.tsx    | 6 +++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.module.css b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
index 9cdbd4f3a9c..de1a4ad3ce8 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.module.css
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
@@ -16,6 +16,11 @@
   display: block;
 }
 
+/* After idle, top controls fade; hide cursor until mouse moves (options menu keeps cursor) */
+.visualizerCursorHidden {
+  cursor: none;
+}
+
 .topControlsWrap {
   position: absolute;
   top: 22px;
diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.tsx b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
index 0a5b2c3c074..7222af28cd0 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.tsx
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
@@ -326,6 +326,9 @@ const Visualizer = ({
 
   const canBack = ButterchurnVisualizer?.canHistoryBack() ?? false
 
+  /** Top pill fades on idle regardless of auto-hide; hide cursor whenever that idle state is active */
+  const chromeIdleHidden = !showControls && !optionsOpen
+
   const currentTrack = useCurrentTrack()
   const { data: user } = useUser(currentTrack?.owner_id)
 
@@ -438,7 +441,8 @@ const Visualizer = ({
     <div
       className={cn(styles.visualizer, {
         [styles.fade]: fadeVisualizer,
-        [styles.show]: showVisualizer
+        [styles.show]: showVisualizer,
+        [styles.visualizerCursorHidden]: chromeIdleHidden
       })}
       onMouseMove={handleMouseMove}
     >

From 2014cb4561a1ab80bdf07e9f0d00b14f9a838834 Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 16:45:42 -0500
Subject: [PATCH 7/9] Refactor butterchurn loading and UI tweaks

Move visualizer route constants to a dedicated file and pin butterchurn deps in package.json. Lazily load butterchurn and its isSupported check via dynamic import (singleflight), making the visualizer library load-resilient and avoiding top-level imports; add robust handling for multiple AudioContexts and teardown to prevent stale nodes and WebGL/context loss. Update butterchurn types to reflect default export and isSupported module. UI/UX changes: add a visualizer pill overlay on the now-playing artwork (new CSS module + component changes), tweak VisualizerProvider styles, and implement a short "now playing" peek to briefly reveal track details after queue changes when auto-hide is enabled. Misc: refactor presets loading to be defensive, simplify render/start logic, and add various safety checks to prevent runtime errors.
---
 packages/web/package.json                     |   4 +-
 .../desktop/NowPlayingArtworkTile.module.css  |  72 +++++++
 .../nav/desktop/NowPlayingArtworkTile.tsx     |  85 ++++----
 .../web/src/pages/visualizer/Visualizer.tsx   |  11 +-
 .../visualizer/VisualizerProvider.module.css  |  16 +-
 .../pages/visualizer/VisualizerProvider.tsx   |  82 ++++++--
 .../web/src/pages/visualizer/constants.ts     |  10 +
 .../src/types/butterchurn-preset-packs.d.ts   |  27 ++-
 .../utils/visualizer/butterchurnVisualizer.ts | 181 +++++++++++-------
 packages/web/src/utils/visualizer/presets.ts  |   3 +-
 10 files changed, 353 insertions(+), 138 deletions(-)
 create mode 100644 packages/web/src/components/nav/desktop/NowPlayingArtworkTile.module.css
 create mode 100644 packages/web/src/pages/visualizer/constants.ts

diff --git a/packages/web/package.json b/packages/web/package.json
index 9e44a804db1..ec926b4b8ae 100644
--- a/packages/web/package.json
+++ b/packages/web/package.json
@@ -105,8 +105,8 @@
     "array-pack-2d": "0.1.1",
     "body-scroll-lock": "4.0.0-beta.0",
     "bs58": "5.0.0",
-    "butterchurn": "^2.6.7",
-    "butterchurn-presets": "^2.4.7",
+    "butterchurn": "2.6.7",
+    "butterchurn-presets": "2.4.7",
     "chart.js": "2.9.3",
     "clamp": "1.0.1",
     "classnames": "2.2.6",
diff --git a/packages/web/src/components/nav/desktop/NowPlayingArtworkTile.module.css b/packages/web/src/components/nav/desktop/NowPlayingArtworkTile.module.css
new file mode 100644
index 00000000000..c9ef628fe59
--- /dev/null
+++ b/packages/web/src/components/nav/desktop/NowPlayingArtworkTile.module.css
@@ -0,0 +1,72 @@
+/* `Link` fills the tile; `.coverArtLink:hover` shows the pill (pill has `pointer-events: auto`) */
+.coverArtLink {
+  display: block;
+  position: relative;
+  height: 100%;
+  width: 100%;
+}
+
+.artworkOverlay {
+  position: absolute;
+  inset: 0;
+  pointer-events: none;
+  z-index: 1;
+}
+
+.visualizerPill {
+  position: absolute;
+  bottom: 8px;
+  right: 8px;
+  z-index: 2;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  gap: 6px;
+  margin: 0;
+  padding: 5px 10px;
+  border: none;
+  border-radius: 999px;
+  cursor: pointer;
+  opacity: 0;
+  pointer-events: none;
+  transition:
+    opacity 0.22s ease,
+    background 0.15s ease,
+    transform 0.15s ease;
+  background: rgba(255, 255, 255, 0.12);
+  backdrop-filter: blur(20px) saturate(160%);
+  -webkit-backdrop-filter: blur(20px) saturate(160%);
+  border: 1px solid rgba(255, 255, 255, 0.22);
+  box-shadow:
+    0 2px 16px rgba(0, 0, 0, 0.18),
+    inset 0 1px 0 rgba(255, 255, 255, 0.18);
+}
+
+.coverArtLink:hover .visualizerPill,
+.visualizerPill:focus-visible {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.visualizerPill:hover {
+  background: rgba(255, 255, 255, 0.2);
+}
+
+.visualizerPill:active {
+  background: rgba(255, 255, 255, 0.3);
+  transform: scale(0.98);
+}
+
+/* Legibility on very light or very dark artwork */
+.visualizerPillLabel {
+  color: rgba(255, 255, 255, 0.96) !important;
+  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
+  letter-spacing: 0.02em;
+}
+
+.visualizerPillIcon {
+  width: 14px;
+  height: 14px;
+  fill: rgba(255, 255, 255, 0.96);
+  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.4));
+}
diff --git a/packages/web/src/components/nav/desktop/NowPlayingArtworkTile.tsx b/packages/web/src/components/nav/desktop/NowPlayingArtworkTile.tsx
index e60519eefb4..b0b4e122666 100644
--- a/packages/web/src/components/nav/desktop/NowPlayingArtworkTile.tsx
+++ b/packages/web/src/components/nav/desktop/NowPlayingArtworkTile.tsx
@@ -6,10 +6,10 @@ import { playerSelectors } from '@audius/common/store'
 import {
   IconImage,
   IconWaveForm as IconVisualizer,
-  IconButton,
   useTheme,
   Box,
-  Paper
+  Paper,
+  Text
 } from '@audius/harmony'
 import { animated, useSpring } from '@react-spring/web'
 import { useDispatch, useSelector } from 'react-redux'
@@ -22,15 +22,18 @@ import {
   useTrackCoverArt,
   useTrackCoverArtDominantColor
 } from 'hooks/useTrackCoverArt'
-import { NO_VISUALIZER_ROUTES } from 'pages/visualizer/Visualizer'
+import { NO_VISUALIZER_ROUTES } from 'pages/visualizer/constants'
 import { openVisualizer } from 'pages/visualizer/store/slice'
 import { fullTrackPage } from 'utils/route'
 
+import styles from './NowPlayingArtworkTile.module.css'
+
 const { getTrackId } = playerSelectors
 
 const messages = {
   viewTrack: 'View currently playing track',
-  showVisualizer: 'Show Visualizer'
+  visualizer: 'Visualizer',
+  openVisualizer: 'Open visualizer'
 }
 
 const AnimatedPaper = animated(Paper)
@@ -39,7 +42,7 @@ export const NowPlayingArtworkTile = () => {
   const dispatch = useDispatch()
   const location = useLocation()
   const { pathname } = location
-  const { color, spacing, motion } = useTheme()
+  const { motion } = useTheme()
 
   const { data: currentUserId } = useCurrentUserId()
   const trackId = useSelector(getTrackId)
@@ -64,6 +67,7 @@ export const NowPlayingArtworkTile = () => {
 
   const handleShowVisualizer = useCallback(
     (event: MouseEvent) => {
+      event.stopPropagation()
       if (NO_VISUALIZER_ROUTES.has(pathname)) return
       event.preventDefault()
       dispatch(openVisualizer())
@@ -100,41 +104,52 @@ export const NowPlayingArtworkTile = () => {
         }}
         style={slideInProps}
       >
-        <Link to={permalink} aria-label={messages.viewTrack}>
+        <Link
+          className={styles.coverArtLink}
+          to={permalink}
+          aria-label={messages.viewTrack}
+        >
           <DynamicImage
             key={trackId}
             useSkeleton={!hasNoArtwork}
             image={trackCoverArtImage}
           >
-            {hasNoArtwork ? (
-              <Box
-                css={{
-                  position: 'absolute',
-                  inset: 0,
-                  display: 'flex',
-                  alignItems: 'center',
-                  justifyContent: 'center',
-                  zIndex: 2,
-                  '& svg path': { fill: 'var(--harmony-static-white)' }
-                }}
-              >
-                <IconImage width={48} height={48} />
-              </Box>
-            ) : null}
-            <IconButton
-              activeColor='active'
-              ripple
-              css={{
-                position: 'absolute',
-                bottom: spacing.unit2,
-                right: spacing.unit2,
-                backgroundColor: color.background.white
-              }}
-              aria-label={messages.showVisualizer}
-              onClick={handleShowVisualizer}
-              icon={IconVisualizer}
-              color='default'
-            />
+            <div className={styles.artworkOverlay}>
+              {hasNoArtwork ? (
+                <Box
+                  css={{
+                    position: 'absolute',
+                    inset: 0,
+                    display: 'flex',
+                    alignItems: 'center',
+                    justifyContent: 'center',
+                    zIndex: 2,
+                    '& svg path': { fill: 'var(--harmony-static-white)' }
+                  }}
+                >
+                  <IconImage width={48} height={48} />
+                </Box>
+              ) : null}
+              {NO_VISUALIZER_ROUTES.has(pathname) ? null : (
+                <button
+                  type='button'
+                  className={styles.visualizerPill}
+                  aria-label={messages.openVisualizer}
+                  onClick={handleShowVisualizer}
+                >
+                  <IconVisualizer className={styles.visualizerPillIcon} />
+                  <Text
+                    tag='span'
+                    variant='body'
+                    size='xs'
+                    strength='strong'
+                    className={styles.visualizerPillLabel}
+                  >
+                    {messages.visualizer}
+                  </Text>
+                </button>
+              )}
+            </div>
           </DynamicImage>
         </Link>
       </AnimatedPaper>
diff --git a/packages/web/src/pages/visualizer/Visualizer.tsx b/packages/web/src/pages/visualizer/Visualizer.tsx
index 39ac5f90221..a88c8ea815f 100644
--- a/packages/web/src/pages/visualizer/Visualizer.tsx
+++ b/packages/web/src/pages/visualizer/Visualizer.tsx
@@ -16,15 +16,11 @@ import { closeVisualizer, toggleVisibility } from './store/slice'
 import styles from './Visualizer.module.css'
 import { useLocation } from 'react-router'
 import { useHotkeys } from '@audius/harmony'
-import { route } from '@audius/common/utils'
 import ButterchurnVisualizer from 'utils/visualizer/butterchurnVisualizer'
 
-const { UPLOAD_PAGE, UPLOAD_ALBUM_PAGE, UPLOAD_PLAYLIST_PAGE } = route
-export const NO_VISUALIZER_ROUTES = new Set([
-  UPLOAD_PAGE,
-  UPLOAD_ALBUM_PAGE,
-  UPLOAD_PLAYLIST_PAGE
-])
+import { NO_VISUALIZER_ROUTES } from './constants'
+
+export { NO_VISUALIZER_ROUTES }
 
 const VisualizerProvider = lazy(() => import('./VisualizerProvider'))
 
@@ -47,7 +43,6 @@ const Visualizer = ({
   }, [isVisible])
 
   const onToggleVisibility = useCallback(() => {
-    // Don't toggle in the case that we are on a route that disables the visualizer
     if (NO_VISUALIZER_ROUTES.has(pathname)) return
 
     toggleVisibility()
diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.module.css b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
index de1a4ad3ce8..22dc4ebeb39 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.module.css
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
@@ -16,7 +16,7 @@
   display: block;
 }
 
-/* After idle, top controls fade; hide cursor until mouse moves (options menu keeps cursor) */
+/* Cursor hidden while top controls are idle-hidden (options closed) */
 .visualizerCursorHidden {
   cursor: none;
 }
@@ -167,12 +167,22 @@
   width: 208px;
   height: 208px;
   overflow: hidden;
-  border: 2px solid var(--currently-playing-border);
-  border-radius: 15px;
+  border-radius: 8px;
   box-shadow: 0 5px 16px -2px rgba(85, 84, 89, 0.5) !important;
   background-size: cover;
   background-position: center;
   background-repeat: no-repeat;
+  position: relative;
+}
+
+.artworkWrapper .artwork::after {
+  content: '';
+  position: absolute;
+  inset: 0;
+  border: 1px solid rgba(255, 255, 255, 0.25);
+  border-radius: 8px;
+  mix-blend-mode: exclusion;
+  pointer-events: none;
 }
 .playing {
   cursor: pointer;
diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.tsx b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
index 7222af28cd0..73f21489f2b 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.tsx
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
@@ -66,6 +66,9 @@ const messages = {
   closeVisualizer: 'Close visualizer'
 }
 
+/** ms to keep the now-playing corner visible after `currentQueueItem.uid` changes while auto-hide is on */
+const TRACK_CHANGE_NOW_PLAYING_MS = 4500
+
 const Artwork = ({ track }: { track?: Track | null }) => {
   const { track_id } = track || {}
   const { imageUrl: image } = useTrackCoverArt({
@@ -226,18 +229,21 @@ const VisualizerTrackCorner = connect(
   })
 )(function VisualizerTrackCornerInner({
   showControls,
+  nowPlayingPeek,
   autoHideTrackDetails,
   children
 }: {
   showControls: boolean
+  nowPlayingPeek: boolean
   autoHideTrackDetails: boolean
   children: ReactNode
 }) {
-  const trackDetailsVisible = !autoHideTrackDetails ? true : showControls
+  const clusterVisible =
+    !autoHideTrackDetails || showControls || nowPlayingPeek
   return (
     <div
       className={cn(styles.trackCornerCluster, {
-        [styles.trackCornerClusterVisible]: trackDetailsVisible
+        [styles.trackCornerClusterVisible]: clusterVisible
       })}
     >
       {children}
@@ -257,6 +263,7 @@ const Visualizer = ({
   isVisible,
   currentQueueItem,
   playing,
+  autoHideTrackDetails,
   onClose,
   recordOpen,
   recordClose,
@@ -266,9 +273,12 @@ const Visualizer = ({
   const [fadeVisualizer, setFadeVisualizer] = useState<Nullable<Boolean>>(null)
   const [showVisualizer, setShowVisualizer] = useState(false)
   const [showControls, setShowControls] = useState(false)
+  const [nowPlayingPeek, setNowPlayingPeek] = useState(false)
   const [optionsOpen, setOptionsOpen] = useState(false)
   const [, setHistoryTick] = useState(0)
   const controlsTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+  const trackFlashTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+  const prevQueueUidRef = useRef<string | null>(null)
 
   const optionsAnchorRef = useRef<HTMLButtonElement>(null)
 
@@ -277,16 +287,20 @@ const Visualizer = ({
     optionsOpenRef.current = optionsOpen
   }, [optionsOpen])
 
-  const handleMouseMove = useCallback(() => {
+  const revealChromeForMs = useCallback((ms: number) => {
     setShowControls(true)
     if (controlsTimerRef.current) clearTimeout(controlsTimerRef.current)
     controlsTimerRef.current = setTimeout(() => {
       if (!optionsOpenRef.current) {
         setShowControls(false)
       }
-    }, 3000)
+    }, ms)
   }, [])
 
+  const handleMouseMove = useCallback(() => {
+    revealChromeForMs(3000)
+  }, [revealChromeForMs])
+
   useEffect(() => {
     if (!isVisible || !showVisualizer) return
     const onMove = () => handleMouseMove()
@@ -311,6 +325,47 @@ const Visualizer = ({
     }
   }, [showControls])
 
+  useEffect(() => {
+    if (!isVisible) {
+      prevQueueUidRef.current = null
+      setNowPlayingPeek(false)
+      if (trackFlashTimerRef.current) {
+        clearTimeout(trackFlashTimerRef.current)
+        trackFlashTimerRef.current = null
+      }
+    }
+  }, [isVisible])
+
+  const currentTrack = useCurrentTrack()
+
+  useEffect(() => {
+    if (!isVisible || !showVisualizer || !autoHideTrackDetails) return
+    const uid = currentQueueItem?.uid
+    if (!uid) return
+    if (prevQueueUidRef.current === uid) return
+    prevQueueUidRef.current = uid
+
+    setNowPlayingPeek(true)
+    if (trackFlashTimerRef.current) clearTimeout(trackFlashTimerRef.current)
+    trackFlashTimerRef.current = setTimeout(() => {
+      setNowPlayingPeek(false)
+      trackFlashTimerRef.current = null
+    }, TRACK_CHANGE_NOW_PLAYING_MS)
+  }, [
+    isVisible,
+    showVisualizer,
+    autoHideTrackDetails,
+    currentQueueItem?.uid
+  ])
+
+  useEffect(() => {
+    return () => {
+      if (trackFlashTimerRef.current) {
+        clearTimeout(trackFlashTimerRef.current)
+      }
+    }
+  }, [])
+
   useEffect(() => {
     ButterchurnVisualizer?.setOnHistoryChange?.(() =>
       setHistoryTick((t) => t + 1)
@@ -326,10 +381,8 @@ const Visualizer = ({
 
   const canBack = ButterchurnVisualizer?.canHistoryBack() ?? false
 
-  /** Top pill fades on idle regardless of auto-hide; hide cursor whenever that idle state is active */
   const chromeIdleHidden = !showControls && !optionsOpen
 
-  const currentTrack = useCurrentTrack()
   const { data: user } = useUser(currentTrack?.owner_id)
 
   useEffect(() => {
@@ -403,10 +456,6 @@ const Visualizer = ({
 
   const renderTrackInfo = () => {
     const { uid } = currentQueueItem
-    const dominantColors = null
-    const dominantColor = dominantColors
-      ? dominantColors[0]
-      : { r: 0, g: 0, b: 0 }
     return currentTrack && user && uid ? (
       <div className={styles.trackInfoWrapper}>
         <PlayingTrackInfo
@@ -429,7 +478,6 @@ const Visualizer = ({
             onClose()
           }}
           hasShadow={true}
-          dominantColor={dominantColor}
         />
       </div>
     ) : (
@@ -498,7 +546,10 @@ const Visualizer = ({
       >
         <VisualizerOptionsForm canBack={canBack} />
       </Popup>
-      <VisualizerTrackCorner showControls={showControls}>
+      <VisualizerTrackCorner
+        showControls={showControls}
+        nowPlayingPeek={nowPlayingPeek}
+      >
         <div className={styles.infoOverlayTileShadow}></div>
         <div className={styles.infoOverlayTile}>
           <div
@@ -512,7 +563,9 @@ const Visualizer = ({
           >
             <Artwork track={currentTrack} />
           </div>
-          {renderTrackInfo()}
+          {!autoHideTrackDetails || showControls || nowPlayingPeek
+            ? renderTrackInfo()
+            : null}
         </div>
       </VisualizerTrackCorner>
       <Toast
@@ -532,7 +585,8 @@ const makeMapStateToProps = () => {
     const currentQueueItem = getCurrentQueueItem(state)
     return {
       currentQueueItem,
-      playing: getPlaying(state)
+      playing: getPlaying(state),
+      autoHideTrackDetails: getAutoHideTrackDetails(state)
     }
   }
   return mapStateToProps
diff --git a/packages/web/src/pages/visualizer/constants.ts b/packages/web/src/pages/visualizer/constants.ts
new file mode 100644
index 00000000000..9a13391c7be
--- /dev/null
+++ b/packages/web/src/pages/visualizer/constants.ts
@@ -0,0 +1,10 @@
+import { route } from '@audius/common/utils'
+
+const { UPLOAD_PAGE, UPLOAD_ALBUM_PAGE, UPLOAD_PLAYLIST_PAGE } = route
+
+/** Paths where `openVisualizer` / toggle are ignored (e.g. upload flows). */
+export const NO_VISUALIZER_ROUTES = new Set([
+  UPLOAD_PAGE,
+  UPLOAD_ALBUM_PAGE,
+  UPLOAD_PLAYLIST_PAGE
+])
diff --git a/packages/web/src/types/butterchurn-preset-packs.d.ts b/packages/web/src/types/butterchurn-preset-packs.d.ts
index 0e4a32c1aa5..72c607e441b 100644
--- a/packages/web/src/types/butterchurn-preset-packs.d.ts
+++ b/packages/web/src/types/butterchurn-preset-packs.d.ts
@@ -1,17 +1,24 @@
 declare module 'butterchurn' {
-  export function createVisualizer(
-    audioContext: AudioContext,
-    canvas: HTMLCanvasElement,
-    opts: { width: number; height: number; pixelRatio: number }
-  ): {
-    render: () => void
-    setRendererSize: (w: number, h: number) => void
-    loadPreset: (preset: object, blendTime: number) => void
-    connectAudio: (node: AudioNode) => void
-    disconnectAudio: (node: AudioNode) => void
+  /** UMD / Vite: `import('butterchurn')` resolves to `{ default: Butterchurn }` */
+  export default class Butterchurn {
+    static createVisualizer(
+      audioContext: AudioContext,
+      canvas: HTMLCanvasElement,
+      opts: { width: number; height: number; pixelRatio: number }
+    ): {
+      render: () => void
+      setRendererSize: (w: number, h: number) => void
+      loadPreset: (preset: object, blendTime: number) => void
+      connectAudio: (node: AudioNode) => void
+      disconnectAudio: (node: AudioNode) => void
+    }
   }
 }
 
+declare module 'butterchurn/lib/isSupported.min' {
+  export default function isSupported(): boolean
+}
+
 declare module 'butterchurn-presets' {
   export function getPresets(): Record<string, object>
 }
diff --git a/packages/web/src/utils/visualizer/butterchurnVisualizer.ts b/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
index 47d14b8e1f4..b4ab04ed28e 100644
--- a/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
+++ b/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
@@ -1,13 +1,4 @@
-// Butterchurn (Milkdrop) visualizer engine singleton.
-// Drop-in replacement for the old visualizer-1.js with the same public API shape.
-//
-// butterchurn.createVisualizer(audioContext, canvas, opts) — audioContext must be
-// a Web Audio AudioContext, NOT a WebGL context. The visualizer is therefore created
-// lazily inside bind() once we have the AudioContext from the audio player.
-
-import butterchurn from 'butterchurn'
-// @ts-expect-error - butterchurn/lib/isSupported.min has no types
-import isSupported from 'butterchurn/lib/isSupported.min'
+// Milkdrop (butterchurn): singleton canvas, lazy `import()` until bind/show.
 
 import { loadPresets, getPresetKeys, getRandomPresetKey } from './presets'
 
@@ -16,12 +7,51 @@ const AUTO_CYCLE_MS = 45000 // auto-advance interval
 const PRESET_HISTORY_MAX = 10
 
 type AudioPlayerLike = {
-  source: AudioNode | null
+  source: MediaElementAudioSourceNode | null
   audioCtx: AudioContext | null
 }
 
 type PresetMap = Record<string, object>
 
+type ButterchurnDefault = (typeof import('butterchurn'))['default']
+
+let ButterchurnClass: ButterchurnDefault | null = null
+let libLoadPromise: Promise<boolean> | null = null
+
+function resolveButterchurnDefault(
+  bcMod: typeof import('butterchurn')
+): ButterchurnDefault | null {
+  const mod = bcMod as { default?: ButterchurnDefault } & Partial<ButterchurnDefault>
+  const ctor = mod.default ?? (mod as unknown as ButterchurnDefault)
+  return typeof ctor?.createVisualizer === 'function' ? ctor : null
+}
+
+/** Singleflight load; resolves false if import fails or `isSupported` is false */
+function loadButterchurnLib(): Promise<boolean> {
+  if (typeof window === 'undefined') return Promise.resolve(false)
+  if (libLoadPromise) return libLoadPromise
+  libLoadPromise = (async () => {
+    try {
+      const [bcMod, { default: isSup }] = await Promise.all([
+        import('butterchurn'),
+        import('butterchurn/lib/isSupported.min')
+      ])
+      ButterchurnClass = resolveButterchurnDefault(bcMod)
+      if (!ButterchurnClass) {
+        return false
+      }
+      try {
+        return Boolean(isSup())
+      } catch {
+        return false
+      }
+    } catch {
+      return false
+    }
+  })()
+  return libLoadPromise
+}
+
 let canvas: HTMLCanvasElement | null = null
 let visualizer: any = null
 let animFrameId: number | null = null
@@ -31,6 +61,8 @@ let presetKeys: string[] = []
 let currentPresetIndex = -1
 let currentPresetName: string | null = null
 let connectedAudioNode: AudioNode | null = null
+/** Recreate the visualizer when this diverges from `audioPlayer.audioCtx` */
+let boundAudioContext: AudioContext | null = null
 let presetHistoryPast: string[] = []
 let presetHistoryFuture: string[] = []
 let onHistoryChange: (() => void) | null = null
@@ -53,15 +85,11 @@ function clearPresetHistory() {
 
 function createCanvas(): HTMLCanvasElement {
   const c = document.createElement('canvas')
-  // position:fixed ensures the canvas covers the full viewport regardless of
-  // where it lives in the DOM tree (avoids being clipped by positioned ancestors).
   c.style.position = 'fixed'
   c.style.top = '0'
   c.style.left = '0'
   c.style.width = '100vw'
   c.style.height = '100vh'
-  // Must not capture pointer events — otherwise overlay onMouseMove never runs and
-  // chrome (close, controls) tied to mouse activity stay hidden.
   c.style.pointerEvents = 'none'
   c.style.display = 'none'
   return c
@@ -69,7 +97,6 @@ function createCanvas(): HTMLCanvasElement {
 
 function handleResize() {
   if (!canvas || !visualizer) return
-  // clientWidth/Height may be 0 if canvas isn't in the DOM yet; fall back to window.
   const w = canvas.clientWidth || window.innerWidth
   const h = canvas.clientHeight || window.innerHeight
   const width = w * window.devicePixelRatio
@@ -107,12 +134,26 @@ async function initPresets() {
   }
 }
 
-// --- Public API ---
+function teardownVisualizerForNewAudioContext() {
+  if (animFrameId !== null) {
+    cancelAnimationFrame(animFrameId)
+    animFrameId = null
+  }
+  if (visualizer && connectedAudioNode) {
+    try {
+      visualizer.disconnectAudio(connectedAudioNode)
+    } catch {
+      // Stale node
+    }
+  }
+  visualizer = null
+  connectedAudioNode = null
+  boundAudioContext = null
+}
 
 function createVisualizerWithAudioContext(audioCtx: AudioContext) {
-  if (!canvas) return
+  if (!canvas || !ButterchurnClass) return
 
-  // Canvas may not be in the DOM yet when bind() fires before show(); use window as fallback.
   const w = canvas.clientWidth || window.innerWidth
   const h = canvas.clientHeight || window.innerHeight
   const width = Math.max(w * window.devicePixelRatio, 800)
@@ -120,55 +161,61 @@ function createVisualizerWithAudioContext(audioCtx: AudioContext) {
   canvas.width = width
   canvas.height = height
 
-  visualizer = butterchurn.createVisualizer(audioCtx, canvas, {
+  visualizer = ButterchurnClass.createVisualizer(audioCtx, canvas, {
     width,
     height,
     pixelRatio: window.devicePixelRatio || 1
   })
+  boundAudioContext = audioCtx
 
   if (connectedAudioNode) {
     visualizer.connectAudio(connectedAudioNode)
   }
 
-  // Start the render loop now that butterchurn exists
   if (canvas.style.display !== 'none' && animFrameId === null) {
     animFrameId = requestAnimationFrame(renderLoop)
   }
 
-  initPresets().then(() => {
-    if (presets && presetKeys.length > 0 && visualizer) {
-      const key = getRandomPresetKey(presets, currentPresetName)
-      const idx = presetKeys.indexOf(key)
-      loadPresetByIndex(idx >= 0 ? idx : 0, 0)
-    }
-  })
+  initPresets()
+    .then(() => {
+      if (presets && presetKeys.length > 0 && visualizer) {
+        const key = getRandomPresetKey(presets, currentPresetName)
+        const idx = presetKeys.indexOf(key)
+        loadPresetByIndex(idx >= 0 ? idx : 0, 0)
+      }
+    })
+    .catch(() => {
+      // Dynamic import / preset pack failed
+    })
 }
 
-function show() {
-  if (!isSupported()) return
-
+function applyShow() {
   if (!canvas) {
     canvas = createCanvas()
   }
 
-  // Re-attach if the React component remounted and the wrapper is a new node
   const visWrapper = document.querySelector('.visualizer')
   if (visWrapper && !visWrapper.contains(canvas)) {
     visWrapper.appendChild(canvas)
   }
 
-  // Un-hide without removing from DOM (removing causes WebGL context loss)
   canvas.style.display = 'block'
 
   window.addEventListener('resize', handleResize)
   handleResize()
 
-  // Only start the render loop once butterchurn is ready
   if (visualizer && animFrameId === null) {
     animFrameId = requestAnimationFrame(renderLoop)
   }
 }
 
+function show() {
+  void loadButterchurnLib().then((ok) => {
+    if (!ok) return
+    applyShow()
+  })
+}
+
 function hide() {
   try {
     if (animFrameId !== null) {
@@ -179,21 +226,27 @@ function hide() {
     window.removeEventListener('resize', handleResize)
     clearPresetHistory()
 
-    // Hide via CSS — never remove from DOM to avoid WebGL context loss
     if (canvas) {
       canvas.style.display = 'none'
     }
   } catch {
-    // Defensive: closing must never crash the shell
+    /* hide is best-effort */
   }
 }
 
-function bind(audioPlayer: AudioPlayerLike) {
+function bindAfterLibLoaded(audioPlayer: AudioPlayerLike) {
+  if (!ButterchurnClass) return
   if (!audioPlayer.audioCtx) return
 
   const nextSource = audioPlayer.source
   if (!nextSource) return
 
+  const ctx = audioPlayer.audioCtx
+
+  if (boundAudioContext !== null && boundAudioContext !== ctx) {
+    teardownVisualizerForNewAudioContext()
+  }
+
   if (
     visualizer &&
     connectedAudioNode &&
@@ -208,20 +261,25 @@ function bind(audioPlayer: AudioPlayerLike) {
 
   connectedAudioNode = nextSource
 
-  // Create canvas early if show() hasn't run yet. React fires this effect before
-  // the isVisible effect (component definition order), so canvas may be null here.
   if (!canvas) {
     canvas = createCanvas()
   }
 
   if (!visualizer) {
-    createVisualizerWithAudioContext(audioPlayer.audioCtx)
+    createVisualizerWithAudioContext(ctx)
     return
   }
 
   visualizer.connectAudio(connectedAudioNode)
 }
 
+function bind(audioPlayer: AudioPlayerLike) {
+  void loadButterchurnLib().then((ok) => {
+    if (!ok) return
+    bindAfterLibLoaded(audioPlayer)
+  })
+}
+
 function stop() {
   if (animFrameId !== null) {
     cancelAnimationFrame(animFrameId)
@@ -230,9 +288,6 @@ function stop() {
   stopAutoCycle()
 }
 
-// No-op: Milkdrop presets have their own color systems
-function setDominantColors(_colors?: any) {}
-
 function pushCurrentOntoPastAndClearFuture() {
   if (currentPresetName) {
     presetHistoryPast.push(currentPresetName)
@@ -241,9 +296,8 @@ function pushCurrentOntoPastAndClearFuture() {
   presetHistoryFuture = []
 }
 
-/** New random preset; current moves into back history (for Back / auto-advance). */
 function randomPreset() {
-  if (!presets || presetKeys.length === 0) return
+  if (!visualizer || !presets || presetKeys.length === 0) return
   pushCurrentOntoPastAndClearFuture()
   const key = getRandomPresetKey(presets, currentPresetName)
   const idx = presetKeys.indexOf(key)
@@ -252,7 +306,7 @@ function randomPreset() {
 }
 
 function historyBack() {
-  if (presetHistoryPast.length === 0) return
+  if (!visualizer || presetHistoryPast.length === 0) return
   const key = presetHistoryPast.pop()!
   if (currentPresetName) {
     presetHistoryFuture.push(currentPresetName)
@@ -264,7 +318,7 @@ function historyBack() {
 }
 
 function historyForward() {
-  if (presetHistoryFuture.length === 0) return
+  if (!visualizer || presetHistoryFuture.length === 0) return
   const key = presetHistoryFuture.pop()!
   if (currentPresetName) {
     presetHistoryPast.push(currentPresetName)
@@ -275,7 +329,6 @@ function historyForward() {
   notifyHistory()
 }
 
-/** Redo along forward stack, or at the tip pick a new random preset (like browser forward). */
 function historyForwardOrNext() {
   if (presetHistoryFuture.length > 0) {
     historyForward()
@@ -306,21 +359,21 @@ function setOnHistoryChange(cb: (() => void) | null) {
   onHistoryChange = cb
 }
 
-const ButterchurnVisualizer = isSupported()
-  ? {
-      show,
-      hide,
-      bind,
-      stop,
-      setDominantColors,
-      randomPreset,
-      historyBack,
-      historyForwardOrNext,
-      canHistoryBack,
-      startAutoCycle,
-      stopAutoCycle,
-      setOnHistoryChange
-    }
-  : null
+const ButterchurnVisualizer =
+  typeof window === 'undefined'
+    ? null
+    : {
+        show,
+        hide,
+        bind,
+        stop,
+        randomPreset,
+        historyBack,
+        historyForwardOrNext,
+        canHistoryBack,
+        startAutoCycle,
+        stopAutoCycle,
+        setOnHistoryChange
+      }
 
 export default ButterchurnVisualizer
diff --git a/packages/web/src/utils/visualizer/presets.ts b/packages/web/src/utils/visualizer/presets.ts
index b997e7406be..2afcb0c63a5 100644
--- a/packages/web/src/utils/visualizer/presets.ts
+++ b/packages/web/src/utils/visualizer/presets.ts
@@ -1,5 +1,4 @@
-// Lazy-loaded Milkdrop presets — `butterchurn-presets` npm main bundle only (~100).
-// Extra / Extra2 / MD1 packs are omitted (lower average quality, lots of redundancy).
+// Presets: dynamic `import('butterchurn-presets')` (main export only).
 
 type PresetMap = Record<string, object>
 

From ad14dac36885557b0c3d82104f3a22e42293f81b Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 17:04:23 -0500
Subject: [PATCH 8/9] Prevent cross-context audio node binding

Introduce guards and generation tracking to avoid connecting visualizer to audio nodes from a different AudioContext or stale async binds. Add bindGeneration and pass a generation token through loadButterchurnLib to cancel in-flight binds, a sourceBelongsToContext helper, and instanceof checks. Wrap visualizer.connectAudio in try/catch and add logic in bindAfterLibLoaded to teardown or recreate the visualizer when contexts change, and to ignore sources that don't belong to the target context. These changes prevent cross-context/disposed-node errors and race conditions when loading the butterchurn library.
---
 .../utils/visualizer/butterchurnVisualizer.ts | 68 ++++++++++++++++---
 1 file changed, 59 insertions(+), 9 deletions(-)

diff --git a/packages/web/src/utils/visualizer/butterchurnVisualizer.ts b/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
index b4ab04ed28e..1ba7b180c21 100644
--- a/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
+++ b/packages/web/src/utils/visualizer/butterchurnVisualizer.ts
@@ -67,6 +67,16 @@ let presetHistoryPast: string[] = []
 let presetHistoryFuture: string[] = []
 let onHistoryChange: (() => void) | null = null
 
+/** Invalidates in-flight `bind` continuations after `loadButterchurnLib` (shared promise). */
+let bindGeneration = 0
+
+function sourceBelongsToContext(
+  source: MediaElementAudioSourceNode,
+  ctx: AudioContext
+): boolean {
+  return source.context === ctx
+}
+
 function trimHistory(arr: string[]) {
   while (arr.length > PRESET_HISTORY_MAX) {
     arr.shift()
@@ -169,7 +179,16 @@ function createVisualizerWithAudioContext(audioCtx: AudioContext) {
   boundAudioContext = audioCtx
 
   if (connectedAudioNode) {
-    visualizer.connectAudio(connectedAudioNode)
+    if (
+      connectedAudioNode instanceof MediaElementAudioSourceNode &&
+      sourceBelongsToContext(connectedAudioNode, audioCtx)
+    ) {
+      try {
+        visualizer.connectAudio(connectedAudioNode)
+      } catch {
+        /* cross-context or disposed node */
+      }
+    }
   }
 
   if (canvas.style.display !== 'none' && animFrameId === null) {
@@ -234,17 +253,30 @@ function hide() {
   }
 }
 
-function bindAfterLibLoaded(audioPlayer: AudioPlayerLike) {
+function bindAfterLibLoaded(
+  audioPlayer: AudioPlayerLike,
+  generation: number
+) {
+  if (generation !== bindGeneration) return
   if (!ButterchurnClass) return
-  if (!audioPlayer.audioCtx) return
+  const ctx = audioPlayer.audioCtx
+  if (!ctx) return
 
   const nextSource = audioPlayer.source
   if (!nextSource) return
 
-  const ctx = audioPlayer.audioCtx
-
-  if (boundAudioContext !== null && boundAudioContext !== ctx) {
+  if (
+    visualizer != null &&
+    (boundAudioContext == null || boundAudioContext !== ctx)
+  ) {
     teardownVisualizerForNewAudioContext()
+  } else if (
+    visualizer == null &&
+    boundAudioContext != null &&
+    boundAudioContext !== ctx
+  ) {
+    boundAudioContext = null
+    connectedAudioNode = null
   }
 
   if (
@@ -259,6 +291,10 @@ function bindAfterLibLoaded(audioPlayer: AudioPlayerLike) {
     }
   }
 
+  if (!sourceBelongsToContext(nextSource, ctx)) {
+    return
+  }
+
   connectedAudioNode = nextSource
 
   if (!canvas) {
@@ -270,13 +306,27 @@ function bindAfterLibLoaded(audioPlayer: AudioPlayerLike) {
     return
   }
 
-  visualizer.connectAudio(connectedAudioNode)
+  if (boundAudioContext !== ctx) {
+    teardownVisualizerForNewAudioContext()
+    connectedAudioNode = nextSource
+    createVisualizerWithAudioContext(ctx)
+    return
+  }
+
+  try {
+    visualizer.connectAudio(connectedAudioNode)
+  } catch {
+    teardownVisualizerForNewAudioContext()
+    connectedAudioNode = nextSource
+    createVisualizerWithAudioContext(ctx)
+  }
 }
 
 function bind(audioPlayer: AudioPlayerLike) {
+  const generation = ++bindGeneration
   void loadButterchurnLib().then((ok) => {
-    if (!ok) return
-    bindAfterLibLoaded(audioPlayer)
+    if (!ok || generation !== bindGeneration) return
+    bindAfterLibLoaded(audioPlayer, generation)
   })
 }
 

From 5eff03379c39d21dc9b050187d37a3143985c3bf Mon Sep 17 00:00:00 2001
From: julian <me@julianbaker.design>
Date: Tue, 31 Mar 2026 17:14:41 -0500
Subject: [PATCH 9/9] Allow full track text in visualizer overlay

Add support for showing full track title and artist in the visualizer overlay by introducing a fullTrackText prop on PlayingTrackInfo and applying a .fullTrackText CSS class (removes ellipsis, disables max-width, and lets text wrap). Update VisualizerProvider styles to set overflow: visible so wrapped text can extend outside the tile, and pass fullTrackText to the PlayingTrackInfo instance used in the visualizer.
---
 .../components/PlayingTrackInfo.module.css    | 25 +++++++++++++++++++
 .../desktop/components/PlayingTrackInfo.tsx   | 11 ++++++--
 .../visualizer/VisualizerProvider.module.css  |  3 ++-
 .../pages/visualizer/VisualizerProvider.tsx   |  1 +
 4 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/packages/web/src/components/play-bar/desktop/components/PlayingTrackInfo.module.css b/packages/web/src/components/play-bar/desktop/components/PlayingTrackInfo.module.css
index 490e88017d0..0bb500840d3 100644
--- a/packages/web/src/components/play-bar/desktop/components/PlayingTrackInfo.module.css
+++ b/packages/web/src/components/play-bar/desktop/components/PlayingTrackInfo.module.css
@@ -95,3 +95,28 @@
   position: relative;
   top: 1px;
 }
+
+/* Overlay (e.g. visualizer): full title and artist on one line each, no ellipsis */
+.fullTrackText {
+  width: max-content;
+  max-width: none;
+}
+
+.fullTrackText .text {
+  min-width: max-content;
+}
+
+.fullTrackText .trackTitleContainer {
+  width: max-content;
+  max-width: none;
+}
+
+.fullTrackText .trackTitle,
+.fullTrackText .artistName {
+  overflow: visible;
+  text-overflow: clip;
+}
+
+.fullTrackText .artistNameWrapper {
+  max-width: none;
+}
diff --git a/packages/web/src/components/play-bar/desktop/components/PlayingTrackInfo.tsx b/packages/web/src/components/play-bar/desktop/components/PlayingTrackInfo.tsx
index 2857973a369..a650c94d148 100644
--- a/packages/web/src/components/play-bar/desktop/components/PlayingTrackInfo.tsx
+++ b/packages/web/src/components/play-bar/desktop/components/PlayingTrackInfo.tsx
@@ -35,6 +35,8 @@ interface PlayingTrackInfoProps {
   artistHandle: string
   hasShadow: boolean
   dominantColor?: Color
+  /** When true, title and artist wrap instead of single-line ellipsis (e.g. visualizer overlay). */
+  fullTrackText?: boolean
   onClickTrackTitle: () => void
   onClickArtistName: () => void
 }
@@ -58,7 +60,8 @@ const PlayingTrackInfo = ({
   isTrackUnlisted,
   isStreamGated,
   hasShadow,
-  dominantColor
+  dominantColor,
+  fullTrackText
 }: PlayingTrackInfoProps) => {
   const { data: track } = useTrack(trackId)
   const { hasStreamAccess } = useGatedContentAccess(track)
@@ -107,7 +110,11 @@ const PlayingTrackInfo = ({
   }
 
   return (
-    <div className={styles.info}>
+    <div
+      className={cn(styles.info, {
+        [styles.fullTrackText]: fullTrackText
+      })}
+    >
       <div className={styles.profilePictureWrapper}>
         <DynamicImage
           image={profileImage}
diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.module.css b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
index 22dc4ebeb39..00d404efea2 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.module.css
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.module.css
@@ -148,7 +148,8 @@
   display: flex;
   flex-direction: column;
   align-items: flex-start;
-  overflow: hidden;
+  /* Allow wrapped track/artist text to extend below the tile */
+  overflow: visible;
   transition:
     all ease-in-out 0.18s,
     opacity ease-in-out 0.5s;
diff --git a/packages/web/src/pages/visualizer/VisualizerProvider.tsx b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
index 73f21489f2b..9f3dd14a5b1 100644
--- a/packages/web/src/pages/visualizer/VisualizerProvider.tsx
+++ b/packages/web/src/pages/visualizer/VisualizerProvider.tsx
@@ -478,6 +478,7 @@ const Visualizer = ({
             onClose()
           }}
           hasShadow={true}
+          fullTrackText
         />
       </div>
     ) : (