[csswg-drafts] [selectors] Specify the "all ::-webkit-* pseudos are valid" behavior

tabatkins has just created a new issue for https://github.com/w3c/csswg-drafts:

== [selectors] Specify the "all ::-webkit-* pseudos are valid" behavior ==
For a while, WebKit-derived browsers have had a quirk where *all* `::-webkit-*` pseudo-elements are considered valid at parse time (and thus won't invalidate a selector list if they appear in only one selector).  This has apparently begun to create compat problems for Firefox (see <https://github.com/whatwg/compat/issues/103>), so they're adding that behavior themselves.  This behavior is being tracked in WPT tests in <https://github.com/web-platform-tests/wpt/pull/12673>.

We should go ahead and inline that into the Selectors spec, probably in a compatibility appendix.

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/3051 using your GitHub account

Received on Friday, 24 August 2018 17:54:35 UTC