Florian showed me http://test.csswg.org/source/contributors/opera/submitted/css3-conditional/at-supports-030.html , which we fail. (Some of his other tests that we fail probably aren't valid.) I audited for missing SkipUntil calls, found one, and it fixed the test. (At some point we should import Florian's tests to test this.)
Created attachment 651520 [details] [diff] [review] Add missing SkipUntil call in @supports parsing. ()
(In reply to David Baron [:dbaron] from comment #0) > (At some point we should import Florian's tests to test this.) I see layout/reftests/w3c-css/received/ looks like the place where importing test from csswg.org would go. I guess we should wait until the tooling for automatic importing there is set up?
https://hg.mozilla.org/integration/mozilla-inbound/rev/b300b474c35e https://hg.mozilla.org/integration/mozilla-inbound/rev/98df684d7a3a (imported tests)