287450 2025-02-10 17:58:05 -0800 [Site Isolation] Main frame navigation to a site loaded in a child frame should not reuse message receivers 2025-02-11 10:29:03 -0800 1 1 1 Unclassified WebKit WebKit Process Model WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 charliew charliew nham webkit-bug-importer oldest_to_newest 2093680 0 charliew 2025-02-10 17:58:05 -0800 Currently, if the main frame navigates to a site that is already loaded in a child frame, ProvisionalPageProxy reuses the remote page’s message receiver and page identifier. This cannot work when we need to cache the iframe’s page that is being navigated away from. Reusing the message receiver and page’s main frame is only necessary when a new window is opened, so we should restrict this behavior to that case. 2093681 1 webkit-bug-importer 2025-02-10 17:58:17 -0800 <rdar://problem/144577663> 2093682 2 charliew 2025-02-10 18:00:46 -0800 Pull request: https://github.com/WebKit/WebKit/pull/40384 2093849 3 ews-feeder 2025-02-11 10:29:01 -0800 Committed 290219@main (cbe8887ec479): <https://commits.webkit.org/290219@main> Reviewed commits have been landed. Closing PR #40384 and removing active labels.