254682 2023-03-29 12:52:12 -0700 [css-conditional] Some pseudo-elements should be known in @supports selector() 2023-03-29 19:42:00 -0700 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 241847 https://wpt.fyi/results/css/css-conditional/at-supports-047.html?label=master&label=experimental&aligned&q=css%2Fcss-conditional%2Fat-supports-047.html P2 Normal --- 1 ntim webkit-unassigned jh718.park oldest_to_newest 1945082 0 ntim 2023-03-29 12:52:12 -0700 See LayoutTests/imported/w3c/web-platform-tests/css/css-conditional/at-supports-047.html We fail to parse `@supports selector(input::placeholder)` http://wpt.live/css/css-conditional/at-supports-047.html 1945089 1 ntim 2023-03-29 13:20:23 -0700 So we reject ::placeholder/::file-selector-button (which do fall under CSSSelector::PseudoElementWebKitCustom) in: https://searchfox.org/wubkat/rev/4c1d077ec985eb840a20e5ffb65eb2b73fb89d31/Source/WebCore/css/parser/CSSSelectorParser.cpp#182 We probably shouldn't do this. Joonghun, do you have some context around this? Do we want to reject PseudoElementWebKitCustomLegacyPrefixed instead? or simply stop rejecting anything that's parsable? 1945227 2 ntim 2023-03-29 19:31:46 -0700 *** This bug has been marked as a duplicate of bug 241847 *** 1945230 3 jh718.park 2023-03-29 19:42:00 -0700 (In reply to Tim Nguyen (:ntim) from comment #1) > So we reject ::placeholder/::file-selector-button (which do fall under > CSSSelector::PseudoElementWebKitCustom) in: > > https://searchfox.org/wubkat/rev/4c1d077ec985eb840a20e5ffb65eb2b73fb89d31/ > Source/WebCore/css/parser/CSSSelectorParser.cpp#182 > > We probably shouldn't do this. Joonghun, do you have some context around > this? > > Do we want to reject PseudoElementWebKitCustomLegacyPrefixed instead? or > simply stop rejecting anything that's parsable? It seems that I need to look into the related codes in detail to recall. I will check on it.