Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: f748942f84cc386da1f0ccd7b15497b31a6fb537
      
https://github.com/WebKit/WebKit/commit/f748942f84cc386da1f0ccd7b15497b31a6fb537
  Author: Charlie Wolfe <[email protected]>
  Date:   2025-02-18 (Tue, 18 Feb 2025)

  Changed paths:
    M Source/WebKit/UIProcess/WebPageProxy.cpp
    M Source/WebKit/WebProcess/WebPage/WebPage.cpp
    M Tools/TestWebKitAPI/Tests/WebKitCocoa/SiteIsolation.mm

  Log Message:
  -----------
  [Site Isolation] Fix back/forward isolated frame navigations after session 
restore
https://bugs.webkit.org/show_bug.cgi?id=287855
rdar://145042639

Reviewed by Alex Christensen.

* Source/WebKit/UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::goToBackForwardItem):
Certain state on WebBackForwardListItem, like isRemoteFrameNavigation(), is not 
persisted after a session
restore. So, we cannot rely on it to be correct when we use it in this function.

* Source/WebKit/WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::goToBackForwardItem):
Remove the wasRestoredFromSession() history item check and instead verify that 
the history item's frame
belongs to the current page (and was not restored from another existing page).

* Tools/TestWebKitAPI/Tests/WebKitCocoa/SiteIsolation.mm:
(TestWebKitAPI::testNavigateIframeBackForward):
(TestWebKitAPI::TEST(SiteIsolation, NavigateIframeSameOriginBackForward)):
(TestWebKitAPI::TEST(SiteIsolation, 
NavigateIframeSameOriginBackForwardAfterSessionRestore)):
(TestWebKitAPI::TEST(SiteIsolation, NavigateIframeCrossOriginBackForward)):
(TestWebKitAPI::TEST(SiteIsolation, 
NavigateIframeCrossOriginBackForwardAfterSessionRestore)):

Canonical link: https://commits.webkit.org/290550@main



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