Bug 303588

Summary:	Event.composedPath should never contain nodes from UA shadow tree
Product:	WebKit	Reporter:	Ryosuke Niwa <rniwa>
Component:	New Bugs	Assignee:	Ryosuke Niwa <rniwa>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Ryosuke Niwa

Reported 2025-12-04 17:41:24 PST

`Event.composedPath` should never contain nodes from UA shadow trees even when closed shadow roots are treated as open for extention / browser scripts.

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Ryosuke Niwa

Comment 1 2025-12-04 17:45:48 PST

Pull request: https://github.com/WebKit/WebKit/pull/54885

EWS

Comment 2 2025-12-05 15:56:02 PST

Committed 304022@main (f5d64cbd34b3): <https://commits.webkit.org/304022@main> Reviewed commits have been landed. Closing PR #54885 and removing active labels.

Radar WebKit Bug Importer

Comment 3 2025-12-05 15:57:11 PST

<rdar://problem/165946826>

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