::-webkit-slider-* aliases

[miketaylr]

What is the issue with the Compatibility Standard?

I just discovered Gecko added aliases for ::-webkit-slider-* https://bugzilla.mozilla.org/show_bug.cgi?id=1735575 (at least in Nightly).

Shame they didn't open an issue or send a PR though. :'( If it ships to stable, we should document it here.

[karlcow]

@denschub @ksy36 @wisniewskit so they are aware of it and to put their finger on the scale.

[lukewarlow]

The flag got disabled inside of https://bugzilla.mozilla.org/show_bug.cgi?id=1843040

Mozilla's and WebKit's range input anatomies are different from each other, so adding simple aliases is unlikely to be web compatible.

w3c/csswg-drafts#4410 - has some relevant discussion on standardising these pseudo's (and hopefully will include standardised anatomies)