[Webkit-unassigned] [Bug 254682] Some pseudo-elements should be known in @supports selector()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=254682

Tim Nguyen (:ntim) <ntim at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Pseudo-elements should be   |Some pseudo-elements should
                   |parsed in @supports         |be known in @supports
                   |selector()                  |selector()
                 CC|                            |jh718.park at samsung.com

--- Comment #1 from Tim Nguyen (:ntim) <ntim at apple.com> ---
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?

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