diff --git a/SampleApps/WebView2APISample/AppWindow.cpp b/SampleApps/WebView2APISample/AppWindow.cpp
index f692d5c..ccb2c20 100644
--- a/SampleApps/WebView2APISample/AppWindow.cpp
+++ b/SampleApps/WebView2APISample/AppWindow.cpp
@@ -35,8 +35,10 @@
 #include "ScenarioCustomDownloadExperience.h"
 #include "ScenarioCustomScheme.h"
 #include "ScenarioCustomSchemeNavigate.h"
-#include "ScenarioDefaultBackgroundColor.h"
 #include "ScenarioDOMContentLoaded.h"
+#include "ScenarioDedicatedWorker.h"
+#include "ScenarioDedicatedWorkerPostMessage.h"
+#include "ScenarioDefaultBackgroundColor.h"
 #include "ScenarioDragDrop.h"
 #include "ScenarioDragDropOverride.h"
 #include "ScenarioExtensionsManagement.h"
@@ -47,10 +49,9 @@
 #include "ScenarioNonClientRegionSupport.h"
 #include "ScenarioNotificationReceived.h"
 #include "ScenarioPermissionManagement.h"
-#include "ScenarioDedicatedWorker.h"
-#include "ScenarioDedicatedWorkerPostMessage.h"
 #include "ScenarioServiceWorkerManager.h"
 #include "ScenarioServiceWorkerPostMessage.h"
+#include "ScenarioServiceWorkerPostMessageSetting.h"
 #include "ScenarioSharedWorkerManager.h"
 #include "ScenarioSaveAs.h"
 #include "ScenarioScreenCapture.h"
@@ -821,6 +822,17 @@ bool AppWindow::ExecuteWebViewCommands(WPARAM wParam, LPARAM lParam)
         worker_manager->GetAllSharedWorkers();
         return true;
     }
+    case IDM_TOGGLE_SERVICE_WORKER_JS_API_SETTING:
+    {
+        auto component = GetComponent<ScenarioServiceWorkerPostMessageSetting>();
+        if (!component)
+        {
+            NewComponent<ScenarioServiceWorkerPostMessageSetting>(this);
+            component = GetComponent<ScenarioServiceWorkerPostMessageSetting>();
+        }
+        component->ToggleServiceWorkerJsApiSetting();
+        return true;
+    }
     case IDM_SCENARIO_SCREEN_CAPTURE:
     {
         NewComponent<ScenarioScreenCapture>(this);
diff --git a/SampleApps/WebView2APISample/ScenarioServiceWorkerPostMessageSetting.cpp b/SampleApps/WebView2APISample/ScenarioServiceWorkerPostMessageSetting.cpp
new file mode 100644
index 0000000..7044b1c
--- /dev/null
+++ b/SampleApps/WebView2APISample/ScenarioServiceWorkerPostMessageSetting.cpp
@@ -0,0 +1,209 @@
+// Copyright (C) Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+#include "stdafx.h"
+#include <sstream>
+
+#include "CheckFailure.h"
+
+#include "ScenarioServiceWorkerPostMessageSetting.h"
+
+using namespace Microsoft::WRL;
+
+static constexpr WCHAR c_samplePath[] = L"scenario_sw_post_msg_scope/index2.html";
+
+ScenarioServiceWorkerPostMessageSetting::ScenarioServiceWorkerPostMessageSetting(
+    AppWindow* appWindow)
+    : m_appWindow(appWindow), m_webView(appWindow->GetWebView())
+{
+    SetupEventsOnWebview();
+}
+
+ScenarioServiceWorkerPostMessageSetting::~ScenarioServiceWorkerPostMessageSetting()
+{
+    UnregisterAllServiceWorkers();
+    m_webView->remove_ContentLoading(m_contentLoadingToken);
+    m_webView->remove_WebMessageReceived(m_webMessageReceivedToken);
+    if (m_serviceWorkerManager)
+    {
+        m_serviceWorkerManager->remove_ServiceWorkerRegistered(m_serviceWorkerRegisteredToken);
+    }
+}
+
+void ScenarioServiceWorkerPostMessageSetting::UnregisterAllServiceWorkers()
+{
+    m_webView->ExecuteScript(
+        L"navigator.serviceWorker.getRegistrations().then(function(registrations) {"
+        L"  for(let registration of registrations) {"
+        L"    registration.unregister();"
+        L"  }"
+        L"});",
+        nullptr);
+}
+
+void ScenarioServiceWorkerPostMessageSetting::ToggleServiceWorkerJsApiSetting()
+{
+    // Unregister all the existing service workers before toggling the setting.
+    // So that the setting can be applied to new service workers.
+    UnregisterAllServiceWorkers();
+    auto webView2_13 = m_webView.try_query<ICoreWebView2_13>();
+    CHECK_FEATURE_RETURN_EMPTY(webView2_13);
+
+    wil::com_ptr<ICoreWebView2Profile> webView2Profile;
+    CHECK_FAILURE(webView2_13->get_Profile(&webView2Profile));
+    auto webViewExperimentalProfile15 =
+        webView2Profile.try_query<ICoreWebView2ExperimentalProfile15>();
+
+    if (webViewExperimentalProfile15)
+    {
+        BOOL isEnabled;
+        //! [AreWebViewScriptApisEnabledForServiceWorkers]
+        CHECK_FAILURE(
+            webViewExperimentalProfile15->get_AreWebViewScriptApisEnabledForServiceWorkers(
+                &isEnabled));
+        CHECK_FAILURE(
+            webViewExperimentalProfile15->put_AreWebViewScriptApisEnabledForServiceWorkers(
+                !isEnabled));
+        //! [AreWebViewScriptApisEnabledForServiceWorkers]
+
+        MessageBox(
+            nullptr,
+            (std::wstring(L"Service Worker JS API setting has been ") +
+             (!isEnabled ? L"enabled." : L"disabled."))
+                .c_str(),
+            L"Service Worker JS API Setting", MB_OK);
+    }
+
+    // Setup events on webview2 to listen message from service worker
+    // main thread.
+    m_sampleUri = m_appWindow->GetLocalUri(c_samplePath);
+    CHECK_FAILURE(m_webView->Navigate(m_sampleUri.c_str()));
+}
+
+void ScenarioServiceWorkerPostMessageSetting::SetupEventsOnWebview()
+{
+
+    // Turn off this scenario if we navigate away from the sample page.
+    CHECK_FAILURE(m_webView->add_ContentLoading(
+        Callback<ICoreWebView2ContentLoadingEventHandler>(
+            [this](ICoreWebView2* sender, ICoreWebView2ContentLoadingEventArgs* args) -> HRESULT
+            {
+                wil::unique_cotaskmem_string uri;
+                sender->get_Source(&uri);
+                if (uri.get() != m_sampleUri)
+                {
+                    m_appWindow->DeleteComponent(this);
+                }
+                return S_OK;
+            })
+            .Get(),
+        &m_contentLoadingToken));
+
+    // Setup WebMessageReceived event to receive message from main thread.
+    m_webView->add_WebMessageReceived(
+        Callback<ICoreWebView2WebMessageReceivedEventHandler>(
+            [this](ICoreWebView2* sender, ICoreWebView2WebMessageReceivedEventArgs* args)
+                -> HRESULT
+            {
+                wil::unique_cotaskmem_string message;
+                CHECK_FAILURE(args->TryGetWebMessageAsString(&message));
+
+                std::wstring msgStr = message.get();
+                if (msgStr == L"MessageFromMainThread")
+                {
+                    std::wstringstream message{};
+                    message << L"Message: " << std::endl
+                            << L"Service Worker Message from Main thread. Service worker "
+                               L"direct messaging disabled."
+                            << std::endl;
+                    m_appWindow->AsyncMessageBox(message.str(), L"Message from Service Worker");
+                }
+                return S_OK;
+            })
+            .Get(),
+        &m_webMessageReceivedToken);
+
+    // Get ServiceWorkerManager from profile and setup events to listen to service worker post
+    // messages.
+    auto webView2_13 = m_webView.try_query<ICoreWebView2_13>();
+    CHECK_FEATURE_RETURN_EMPTY(webView2_13);
+
+    wil::com_ptr<ICoreWebView2Profile> webView2Profile;
+    CHECK_FAILURE(webView2_13->get_Profile(&webView2Profile));
+    auto webViewExperimentalProfile13 =
+        webView2Profile.try_query<ICoreWebView2ExperimentalProfile13>();
+    CHECK_FEATURE_RETURN_EMPTY(webViewExperimentalProfile13);
+    CHECK_FAILURE(
+        webViewExperimentalProfile13->get_ServiceWorkerManager(&m_serviceWorkerManager));
+
+    CHECK_FAILURE(m_serviceWorkerManager->add_ServiceWorkerRegistered(
+        Callback<ICoreWebView2ExperimentalServiceWorkerRegisteredEventHandler>(
+            [this](
+                ICoreWebView2ExperimentalServiceWorkerManager* sender,
+                ICoreWebView2ExperimentalServiceWorkerRegisteredEventArgs* args)
+            {
+                wil::com_ptr<ICoreWebView2ExperimentalServiceWorkerRegistration>
+                    serviceWorkerRegistration;
+                CHECK_FAILURE(args->get_ServiceWorkerRegistration(&serviceWorkerRegistration));
+
+                if (serviceWorkerRegistration)
+                {
+                    wil::com_ptr<ICoreWebView2ExperimentalServiceWorker> serviceWorker;
+                    CHECK_FAILURE(
+                        serviceWorkerRegistration->get_ActiveServiceWorker(&serviceWorker));
+
+                    if (serviceWorker)
+                    {
+                        SetupEventsOnServiceWorker(serviceWorker);
+                    }
+                    else
+                    {
+                        CHECK_FAILURE(serviceWorkerRegistration->add_ServiceWorkerActivated(
+                            Callback<
+                                ICoreWebView2ExperimentalServiceWorkerActivatedEventHandler>(
+                                [this](
+                                    ICoreWebView2ExperimentalServiceWorkerRegistration* sender,
+                                    ICoreWebView2ExperimentalServiceWorkerActivatedEventArgs*
+                                        args) -> HRESULT
+                                {
+                                    wil::com_ptr<ICoreWebView2ExperimentalServiceWorker>
+                                        serviceWorker;
+                                    CHECK_FAILURE(
+                                        args->get_ActiveServiceWorker(&serviceWorker));
+                                    SetupEventsOnServiceWorker(serviceWorker);
+
+                                    return S_OK;
+                                })
+                                .Get(),
+                            nullptr));
+                    }
+                }
+
+                return S_OK;
+            })
+            .Get(),
+        &m_serviceWorkerRegisteredToken));
+}
+
+void ScenarioServiceWorkerPostMessageSetting::SetupEventsOnServiceWorker(
+    wil::com_ptr<ICoreWebView2ExperimentalServiceWorker> serviceWorker)
+{
+    serviceWorker->add_WebMessageReceived(
+        Callback<ICoreWebView2ExperimentalServiceWorkerWebMessageReceivedEventHandler>(
+            [this](
+                ICoreWebView2ExperimentalServiceWorker* sender,
+                ICoreWebView2WebMessageReceivedEventArgs* args) -> HRESULT
+            {
+                wil::unique_cotaskmem_string messageRaw;
+                CHECK_FAILURE(args->TryGetWebMessageAsString(&messageRaw));
+                std::wstring messageFromWorker = messageRaw.get();
+
+                std::wstringstream message{};
+                message << L"Message: " << std::endl << messageFromWorker << std::endl;
+                m_appWindow->AsyncMessageBox(message.str(), L"Message from Service Worker");
+
+                return S_OK;
+            })
+            .Get(),
+        nullptr);
+}
diff --git a/SampleApps/WebView2APISample/ScenarioServiceWorkerPostMessageSetting.h b/SampleApps/WebView2APISample/ScenarioServiceWorkerPostMessageSetting.h
new file mode 100644
index 0000000..cd85aea
--- /dev/null
+++ b/SampleApps/WebView2APISample/ScenarioServiceWorkerPostMessageSetting.h
@@ -0,0 +1,31 @@
+// Copyright (C) Microsoft Corporation. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#pragma once
+#include "stdafx.h"
+
+#include "AppWindow.h"
+#include "ComponentBase.h"
+
+class ScenarioServiceWorkerPostMessageSetting : public ComponentBase
+{
+public:
+    ScenarioServiceWorkerPostMessageSetting(AppWindow* appWindow);
+    ~ScenarioServiceWorkerPostMessageSetting() override;
+    void SetupEventsOnWebview();
+    void SetupEventsOnServiceWorker(
+        wil::com_ptr<ICoreWebView2ExperimentalServiceWorker> serviceWorker);
+
+    void ToggleServiceWorkerJsApiSetting();
+    void UnregisterAllServiceWorkers();
+
+private:
+    AppWindow* m_appWindow;
+    wil::com_ptr<ICoreWebView2> m_webView;
+    wil::com_ptr<ICoreWebView2ExperimentalServiceWorkerManager> m_serviceWorkerManager;
+    std::wstring m_sampleUri;
+    EventRegistrationToken m_serviceWorkerRegisteredToken = {};
+    EventRegistrationToken m_contentLoadingToken = {};
+    EventRegistrationToken m_webMessageReceivedToken = {};
+};
diff --git a/SampleApps/WebView2APISample/SettingsComponent.cpp b/SampleApps/WebView2APISample/SettingsComponent.cpp
index c0e5cea..a6e9399 100644
--- a/SampleApps/WebView2APISample/SettingsComponent.cpp
+++ b/SampleApps/WebView2APISample/SettingsComponent.cpp
@@ -953,20 +953,64 @@ bool SettingsComponent::HandleWindowMessage(
             //! [ToggleSwipeNavigationEnabled]
             return true;
         }
-        case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS:
+        case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_NONE:
+        case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_LEFT:
+        case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_CENTER:
+        case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_RIGHT:
+        case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_ALL:
         {
             //! [ToggleHidePdfToolbarItems]
             CHECK_FEATURE_RETURN(m_settings7);
 
-            COREWEBVIEW2_PDF_TOOLBAR_ITEMS hiddenPdfToolbarItems;
-            CHECK_FAILURE(m_settings7->get_HiddenPdfToolbarItems(&hiddenPdfToolbarItems));
-            if (hiddenPdfToolbarItems ==
-                COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_NONE)
+            COREWEBVIEW2_PDF_TOOLBAR_ITEMS itemsToHide =
+                COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_NONE;
+            std::wstring message;
+
+            switch (LOWORD(wParam))
             {
-                CHECK_FAILURE(
-                    m_settings7->put_HiddenPdfToolbarItems(
-                        COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_PRINT |
-                        COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_SAVE) |
+            case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_NONE:
+                // Show all items (hide none)
+                itemsToHide =
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_NONE;
+                message = L"All PDF toolbar items are shown after the next navigation.";
+                break;
+            case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_LEFT:
+                // Left items: Bookmarks
+                itemsToHide = static_cast<COREWEBVIEW2_PDF_TOOLBAR_ITEMS>(
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_BOOKMARKS);
+                message =
+                    L"PDF toolbar left items (Bookmarks) are hidden after the next navigation.";
+                break;
+            case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_CENTER:
+                // Center items: Page Selector, Zoom In, Zoom Out, Fit Page, Page Layout, Rotate
+                itemsToHide = static_cast<COREWEBVIEW2_PDF_TOOLBAR_ITEMS>(
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::
+                        COREWEBVIEW2_PDF_TOOLBAR_ITEMS_PAGE_SELECTOR |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_ZOOM_IN |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_ZOOM_OUT |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_FIT_PAGE |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_PAGE_LAYOUT |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_ROTATE);
+                message = L"PDF toolbar center items (Page Selector, Zoom, Fit Page, Page "
+                          L"Layout, Rotate) are hidden after the next navigation.";
+                break;
+            case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_RIGHT:
+                // Right items: Search, Print, Save, Full Screen, More Settings
+                itemsToHide = static_cast<COREWEBVIEW2_PDF_TOOLBAR_ITEMS>(
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_SEARCH |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_PRINT |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_SAVE |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_FULL_SCREEN |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::
+                        COREWEBVIEW2_PDF_TOOLBAR_ITEMS_MORE_SETTINGS);
+                message = L"PDF toolbar right items (Search, Print, Save, Full Screen, More "
+                          L"Settings) are hidden after the next navigation.";
+                break;
+            case ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_ALL:
+                // All items
+                itemsToHide = static_cast<COREWEBVIEW2_PDF_TOOLBAR_ITEMS>(
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_PRINT |
+                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_SAVE |
                     COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_BOOKMARKS |
                     COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_FIT_PAGE |
                     COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_PAGE_LAYOUT |
@@ -980,20 +1024,12 @@ bool SettingsComponent::HandleWindowMessage(
                     COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_FULL_SCREEN |
                     COREWEBVIEW2_PDF_TOOLBAR_ITEMS::
                         COREWEBVIEW2_PDF_TOOLBAR_ITEMS_MORE_SETTINGS);
-                MessageBox(
-                    nullptr,
-                    L"PDF toolbar print and save buttons are hidden after the next navigation.",
-                    L"Settings change", MB_OK);
-            }
-            else
-            {
-                CHECK_FAILURE(m_settings7->put_HiddenPdfToolbarItems(
-                    COREWEBVIEW2_PDF_TOOLBAR_ITEMS::COREWEBVIEW2_PDF_TOOLBAR_ITEMS_NONE));
-                MessageBox(
-                    nullptr,
-                    L"PDF toolbar print and save buttons are shown after the next navigation.",
-                    L"Settings change", MB_OK);
+                message = L"All PDF toolbar items are hidden after the next navigation.";
+                break;
             }
+
+            CHECK_FAILURE(m_settings7->put_HiddenPdfToolbarItems(itemsToHide));
+            MessageBox(nullptr, message.c_str(), L"Settings change", MB_OK);
             //! [ToggleHidePdfToolbarItems]
             return true;
         }
diff --git a/SampleApps/WebView2APISample/WebView2APISample.rc b/SampleApps/WebView2APISample/WebView2APISample.rc
index 5904d53..36b69f3 100644
--- a/SampleApps/WebView2APISample/WebView2APISample.rc
+++ b/SampleApps/WebView2APISample/WebView2APISample.rc
@@ -138,7 +138,14 @@ BEGIN
         MENUITEM "Toggle Default Script Dialogs", IDM_TOGGLE_DEFAULT_SCRIPT_DIALOGS
         MENUITEM "Toggle DevTools Enabled",     ID_SETTINGS_DEV_TOOLS_ENABLED
         MENUITEM "Toggle General Autofill",     ID_SETTINGS_GENERAL_AUTOFILL_ENABLED
-        MENUITEM "Toggle Hide PDF Toolbar Items", ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS
+        POPUP "Toggle Hide PDF Toolbar Items"
+        BEGIN
+            MENUITEM "None (Show All)", ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_NONE
+            MENUITEM "Hide Left Items", ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_LEFT
+            MENUITEM "Hide Center Items", ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_CENTER
+            MENUITEM "Hide Right Items", ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_RIGHT
+            MENUITEM "Hide All Items", ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_ALL
+        END
         MENUITEM "Toggle Host Objects Allowed", ID_SETTINGS_HOST_OBJECTS_ALLOWED
         MENUITEM "Toggle JavaScript",           IDM_TOGGLE_JAVASCRIPT
         MENUITEM "Toggle Password Autosave",    ID_SETTINGS_PASSWORD_AUTOSAVE_ENABLED
@@ -324,6 +331,7 @@ BEGIN
           MENUITEM "Get Service Worker Registrations", IDM_SCENARIO_GET_SERVICE_WORKER_REGISTRATIONS
           MENUITEM "Get Service Worker Registrations for the Scope", IDM_SCENARIO_GET_SERVICE_WORKER_REGISTERED_FOR_SCOPE
           MENUITEM "Web Messaging", IDM_SCENARIO_SERVICE_WORKER_POST_MESSAGE
+          MENUITEM "Toggle Service Worker JS APIs", IDM_TOGGLE_SERVICE_WORKER_JS_API_SETTING
         END
         POPUP "Dedicated Worker"
         BEGIN
diff --git a/SampleApps/WebView2APISample/WebView2APISample.vcxproj b/SampleApps/WebView2APISample/WebView2APISample.vcxproj
index ec3c5d6..3e41185 100644
--- a/SampleApps/WebView2APISample/WebView2APISample.vcxproj
+++ b/SampleApps/WebView2APISample/WebView2APISample.vcxproj
@@ -253,6 +253,7 @@
     <ClInclude Include="ScenarioSensitivityLabel.h" />
     <ClInclude Include="ScenarioServiceWorkerManager.h" />
     <ClInclude Include="ScenarioServiceWorkerPostMessage.h" />
+    <ClInclude Include="ScenarioServiceWorkerPostMessageSetting.h" />
     <ClInclude Include="ScenarioServiceWorkerWRR.h" />
     <ClInclude Include="ScenarioSharedBuffer.h" />
     <ClInclude Include="ScenarioSharedWorkerManager.h" />
@@ -317,6 +318,7 @@
     <ClCompile Include="ScenarioSensitivityLabel.cpp" />
     <ClCompile Include="ScenarioServiceWorkerManager.cpp" />
     <ClCompile Include="ScenarioServiceWorkerPostMessage.cpp" />
+    <ClCompile Include="ScenarioServiceWorkerPostMessageSetting.cpp" />
     <ClCompile Include="ScenarioServiceWorkerWRR.cpp" />
     <ClCompile Include="ScenarioSharedBuffer.cpp" />
     <ClCompile Include="ScenarioSharedWorkerManager.cpp" />
@@ -532,13 +534,13 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
     <Import Project="..\packages\Microsoft.Windows.ImplementationLibrary.1.0.220201.1\build\native\Microsoft.Windows.ImplementationLibrary.targets" Condition="Exists('..\packages\Microsoft.Windows.ImplementationLibrary.1.0.220201.1\build\native\Microsoft.Windows.ImplementationLibrary.targets')" />
-    <Import Project="..\packages\Microsoft.Web.WebView2.1.0.3796-prerelease\build\native\Microsoft.Web.WebView2.targets" Condition="Exists('..\packages\Microsoft.Web.WebView2.1.0.3796-prerelease\build\native\Microsoft.Web.WebView2.targets')" />
+    <Import Project="..\packages\Microsoft.Web.WebView2.1.0.3848-prerelease\build\native\Microsoft.Web.WebView2.targets" Condition="Exists('..\packages\Microsoft.Web.WebView2.1.0.3848-prerelease\build\native\Microsoft.Web.WebView2.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
     <Error Condition="!Exists('..\packages\Microsoft.Windows.ImplementationLibrary.1.0.220201.1\build\native\Microsoft.Windows.ImplementationLibrary.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Windows.ImplementationLibrary.1.0.220201.1\build\native\Microsoft.Windows.ImplementationLibrary.targets'))" />
-    <Error Condition="!Exists('..\packages\Microsoft.Web.WebView2.1.0.3796-prerelease\build\native\Microsoft.Web.WebView2.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Web.WebView2.1.0.3796-prerelease\build\native\Microsoft.Web.WebView2.targets'))" />
+    <Error Condition="!Exists('..\packages\Microsoft.Web.WebView2.1.0.3848-prerelease\build\native\Microsoft.Web.WebView2.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Web.WebView2.1.0.3848-prerelease\build\native\Microsoft.Web.WebView2.targets'))" />
   </Target>
 </Project>
diff --git a/SampleApps/WebView2APISample/packages.config b/SampleApps/WebView2APISample/packages.config
index f3a3bf6..bc1ee89 100644
--- a/SampleApps/WebView2APISample/packages.config
+++ b/SampleApps/WebView2APISample/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Microsoft.Web.WebView2" version="1.0.3796-prerelease" targetFramework="native" />
+  <package id="Microsoft.Web.WebView2" version="1.0.3848-prerelease" targetFramework="native" />
   <package id="Microsoft.Windows.ImplementationLibrary" version="1.0.220201.1" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/SampleApps/WebView2APISample/resource.h b/SampleApps/WebView2APISample/resource.h
index d2474cd..1da97a5 100644
--- a/SampleApps/WebView2APISample/resource.h
+++ b/SampleApps/WebView2APISample/resource.h
@@ -221,6 +221,7 @@
 #define IDM_SCENARIO_DEDICATED_WORKER_POST_MESSAGE 3009
 #define IDM_SCENARIO_SERVICE_WORKER_POST_MESSAGE 3010
 #define IDM_SCENARIO_WEBRTC_UDP_PORT_CONFIGURATION 3011
+#define IDM_TOGGLE_SERVICE_WORKER_JS_API_SETTING 3012
 #define ID_BLOCKEDSITES                 32773
 #define ID_SETTINGS_NAVIGATETOSTRING    32774
 #define ID_ADD_INITIALIZE_SCRIPT        32775
@@ -238,7 +239,6 @@
 #define ID_SETTINGS_PINCH_ZOOM_ENABLED        32787
 #define ID_SETTINGS_SWIPE_NAVIGATION_ENABLED        32788
 #define ID_TOGGLE_CLIENT_CERTIFICATE_REQUESTED       32789
-#define ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS       32790
 #define ID_TOGGLE_CUSTOM_CONTEXT_MENU          32791
 #define ID_TOGGLE_ALLOW_EXTERNAL_DROP       32792
 #define ID_SETTINGS_TOGGLE_POST_STATUS_BAR_ACTIVITY 32793
@@ -254,6 +254,11 @@
 #define IDC_CHECK_USE_OS_REGION 32803
 #define ID_CUSTOM_DATA_PARTITION 32804
 #define ID_SETTINGS_NON_CLIENT_REGION_SUPPORT_ENABLED 32805
+#define ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_NONE       32853
+#define ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_LEFT       32854
+#define ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_CENTER     32855
+#define ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_RIGHT      32856
+#define ID_SETTINGS_TOGGLE_HIDE_PDF_TOOLBAR_ITEMS_ALL        32857
 #define IDM_SCENARIO_THROTTLING_CONTROL 32807
 #define IDM_SCENARIO_SCREEN_CAPTURE 32809
 #define IDC_STATIC                      -1
@@ -263,7 +268,7 @@
 #ifndef APSTUDIO_READONLY_SYMBOLS
 #define _APS_NO_MFC                     1
 #define _APS_NEXT_RESOURCE_VALUE        245
-#define _APS_NEXT_COMMAND_VALUE         32810
+#define _APS_NEXT_COMMAND_VALUE         32858
 #define _APS_NEXT_CONTROL_VALUE         1015
 #define _APS_NEXT_SYMED_VALUE           110
 #endif
diff --git a/SampleApps/WebView2WindowsFormsBrowser/WebView2WindowsFormsBrowser.csproj b/SampleApps/WebView2WindowsFormsBrowser/WebView2WindowsFormsBrowser.csproj
index a54a57f..96d6f77 100644
--- a/SampleApps/WebView2WindowsFormsBrowser/WebView2WindowsFormsBrowser.csproj
+++ b/SampleApps/WebView2WindowsFormsBrowser/WebView2WindowsFormsBrowser.csproj
@@ -25,7 +25,7 @@
     <PlatformTarget>AnyCPU</PlatformTarget>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3796-prerelease" />
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3848-prerelease" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="assets\" />
diff --git a/SampleApps/WebView2WpfBrowser/WebView2WpfBrowser.csproj b/SampleApps/WebView2WpfBrowser/WebView2WpfBrowser.csproj
index ffde1d8..4f924fe 100644
--- a/SampleApps/WebView2WpfBrowser/WebView2WpfBrowser.csproj
+++ b/SampleApps/WebView2WpfBrowser/WebView2WpfBrowser.csproj
@@ -61,7 +61,7 @@
     </Content>
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3796-prerelease" />
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3848-prerelease" />
 	<PackageReference Include="System.ValueTuple" Version="4.5.0" />
   </ItemGroup>
 </Project>