RESOLVED FIXED308562
[Site Isolation] Route same-site child frame back/forward navigations through UIProcess when UseUIProcessForBackForwardItemLoading is enabled. 
https://bugs.webkit.org/show_bug.cgi?id=308562
Summary [Site Isolation] Route same-site child frame back/forward navigations through...
Basuke Suzuki
Reported 2026-02-24 10:48:46 PST
When UseUIProcessForBackForwardItemLoading is enabled and a parent frame performs a back/forward load, intercept child frame URL loading before it falls through to the legacy loadURLIntoChildFrame path.
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Add attachment proposed patch, testcase, etc.
Basuke Suzuki
Comment 1 2026-02-24 15:31:01 PST
rdar://170106309
Basuke Suzuki
Comment 2 2026-02-24 16:41:15 PST
Pull request: https://github.com/WebKit/WebKit/pull/59373
EWS
Comment 3 2026-03-03 22:07:13 PST
Committed 308613@main (212c74a1c63a): <https://commits.webkit.org/308613@main> Reviewed commits have been landed. Closing PR #59373 and removing active labels.
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