[filter-effects] Should root propagate filter to the viewport? #13242
Description
In Servo we got a bug report because we are not propagating it, but other browsers do.
I don't see https://drafts.csswg.org/filter-effects-1/#FilterProperty saying that it should be propagated, but I guess it makes sense to do it.
<!DOCTYPE html>
<style>
:root {
background: red;
border: 10px solid red;
filter: hue-rotate(120deg);
}
</style>| Servo | Gecko, Blink, WebKit |
|---|---|
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