Bug 299958

Summary:	Trusted Types incorrectly handles null or undefined policy values
Product:	WebKit	Reporter:	Luke Warlow <lwarlow>
Component:	DOM	Assignee:	Luke Warlow <lwarlow>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Other
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://github.com/web-platform-tests/wpt/pull/55179

Luke Warlow

Reported 2025-10-01 08:33:10 PDT

When a non-default TrustedTypes policy returns null or undefined it's value should be converted to an empty string, instead it stays as a null string which can lead to incorrect behavior.

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Luke Warlow

Comment 1 2025-10-01 08:38:44 PDT

Pull request: https://github.com/WebKit/WebKit/pull/51625

EWS

Comment 2 2025-10-02 12:23:02 PDT

Committed 300892@main (f1a37fa5d05b): <https://commits.webkit.org/300892@main> Reviewed commits have been landed. Closing PR #51625 and removing active labels.

Radar WebKit Bug Importer

Comment 3 2025-10-02 12:25:30 PDT

<rdar://problem/161837641>

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