Closed Bug 1499386 Opened Last year Closed Last year
Implement @supports selector() syntax
This implements the selector(<complex-selector>) syntax for @supports. See https://github.com/w3c/csswg-drafts/issues/3207 for explainer and discussion. Probably would should wait for that to be sorted out to land this, or maybe we should put it behind a pref to get the code landed and change our implementation if the discussion there leads to a change.
FYI the general wpt rule is that tests for underspecced features should have .tentative. in the filename. ALthough of course the CSSWG may have a different opinion.
Pushed by email@example.com: https://hg.mozilla.org/integration/autoland/rev/631545ef7925 Implement @supports selector() syntax. r=heycam
Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/13576 for changes under testing/web-platform/tests
I’ve updated the MDN page at: https://developer.mozilla.org/en-US/docs/Web/CSS/@supports#Function_syntax
Upstream web-platform-tests status checks passed, PR will merge once commit reaches central.
Upstream PR merged
I've added an entry for this in our experimental features pages. Exe_Boss has done the page and BCD update, so I think the docs are complete on this one. Nice work!
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