RESOLVED FIXED309366
[Site Isolation] Support history.back() for cross-site iframe back-forward navigation. 
https://bugs.webkit.org/show_bug.cgi?id=309366
Summary [Site Isolation] Support history.back() for cross-site iframe back-forward na...
Basuke Suzuki
Reported 2026-03-06 11:39:05 PST
With site isolation enabled, history.back() triggered from JavaScript in a page containing cross-site iframes does not work correctly. The NavigationScheduler bypasses the UIProcess-driven back-forward navigation path and directly calls page->goToItem(), which fails because the correct frame state is not resolved for cross-site iframes.
Attachments
Add attachment proposed patch, testcase, etc.
Basuke Suzuki
Comment 1 2026-03-06 11:55:53 PST
Pull request: https://github.com/WebKit/WebKit/pull/60082
Basuke Suzuki
Comment 2 2026-03-10 10:39:55 PDT
<rdar://problem/171918182>
Basuke Suzuki
Comment 3 2026-03-10 22:50:53 PDT
Pull request: https://github.com/WebKit/WebKit/pull/60028
EWS
Comment 4 2026-03-11 12:26:33 PDT
Committed 309079@main (e12ff02f1726): <https://commits.webkit.org/309079@main> Reviewed commits have been landed. Closing PR #60082 and removing active labels.
Note You need to log in before you can comment on or make changes to this bug.