[Webkit-unassigned] [Bug 244708] New: :has() selector does not accept forgiving selector list

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244708

            Bug ID: 244708
           Summary: :has() selector does not accept forgiving selector
                    list
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rune.lillesveen at gmail.com

The :has() selector takes a <forgiving-relative-selector-list>[1], but a rule like :has(:unknown) {} is fully dropped in WebKit.

There is a failing wpt test in [2].

[1] https://drafts.csswg.org/selectors/#typedef-forgiving-relative-selector-list
[2] https://wpt.fyi/results/css/selectors/has-error-recovery.html?label=experimental&label=master&aligned

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