RESOLVED FIXED310726
[Web Inspector] [Site Isolation] Add inspector test for Page.overrideUserAgent with cross-origin iframes under site isolation 
https://bugs.webkit.org/show_bug.cgi?id=310726
Summary [Web Inspector] [Site Isolation] Add inspector test for Page.overrideUserAgen...
Brandon
Reported 2026-03-25 12:41:29 PDT
Add a layout test that verifies Page.overrideUserAgent propagates to cross-origin iframes when site isolation is enabled. The test overrides the user agent via Web Inspector, reloads, and confirms that navigator.userAgent in a cross-origin iframe (running in a separate process) reflects the overridden value.
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Add attachment proposed patch, testcase, etc.
Brandon
Comment 1 2026-03-25 12:41:46 PDT
<rdar://173344604>
Brandon
Comment 2 2026-03-25 12:43:25 PDT
Pull request: https://github.com/WebKit/WebKit/pull/61346
EWS
Comment 3 2026-03-27 12:48:56 PDT
Committed 310099@main (e3fd42a59227): <https://commits.webkit.org/310099@main> Reviewed commits have been landed. Closing PR #61346 and removing active labels.
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