Bug 254716

Summary:	[css-conditional] Fix unknown function parsing in @supports rule
Product:	WebKit	Reporter:	Tim Nguyen (:ntim) <ntim>
Component:	CSS	Assignee:	Tim Nguyen (:ntim) <ntim>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Tim Nguyen (:ntim) 2023-03-29 18:56:01 PDT

See:
- https://wpt.fyi/results/css/css-conditional/css-supports-036.xht?label=master&label=experimental&aligned&q=css%2Fcss-conditional%2F%20safari%3Afail%20firefox%3Apass%20chrome%3Apass
- https://wpt.fyi/results/css/css-conditional/js/supports-conditionText.html?label=master&label=experimental&aligned&q=css%2Fcss-conditional%2F%20safari%3Afail%20firefox%3Apass%20chrome%3Apass

Unknown functions should be parsable and evaluate to unsupported.

Comment 1 Radar WebKit Bug Importer 2023-03-29 19:10:06 PDT

<rdar://problem/107397723>

Comment 2 Tim Nguyen (:ntim) 2023-03-29 19:14:31 PDT

Pull request: https://github.com/WebKit/WebKit/pull/12155

Comment 3 EWS 2023-03-29 21:07:26 PDT

Committed 262308@main (4726444d4de9): <https://commits.webkit.org/262308@main>

Reviewed commits have been landed. Closing PR #12155 and removing active labels.