[webkit-changes] [WebKit/WebKit] ff562d: Unreviewed, reverting 307081@main (5fa8be5b7960)

[Sihui]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: ff562da30d35189c715ad37f8e170628d714b19b
      
https://github.com/WebKit/WebKit/commit/ff562da30d35189c715ad37f8e170628d714b19b
  Author: Sihui Liu <sihui_...@apple.com>
  Date:   2026-02-13 (Fri, 13 Feb 2026)

  Changed paths:
    M LayoutTests/http/tests/navigation/resources/back-iframe-popup.html
    M 
LayoutTests/http/tests/navigation/resources/cross-site-iframe-nav-page.html
    M 
LayoutTests/http/tests/navigation/resources/cross-site-iframe-nav-popup.html
    M 
LayoutTests/http/tests/navigation/resources/cross-site-iframe-nav-with-bfcache-page.html
    M LayoutTests/http/tests/navigation/resources/navigation-utils.js
    R 
LayoutTests/http/tests/site-isolation/navigation/back-iframe-cross-site-no-bf-cache-expected.txt
    R 
LayoutTests/http/tests/site-isolation/navigation/back-iframe-cross-site-no-bf-cache.html
    M Source/WebCore/history/HistoryItem.cpp
    M Source/WebCore/history/HistoryItem.h
    M Source/WebCore/loader/FrameLoader.cpp
    M Source/WebCore/page/Frame.cpp

  Log Message:
  -----------
  Unreviewed, reverting 307081@main (5fa8be5b7960)
https://bugs.webkit.org/show_bug.cgi?id=307808
rdar://170324602

Crash inside HistoryItem::childItemForFrame in PLT.

Reverted change:

    [Site Isolation] Back navigation fails when page contains iframe that 
navigated cross-site.
    https://bugs.webkit.org/show_bug.cgi?id=307121
    rdar://169754535
    307081@main (5fa8be5b7960)

Canonical link: https://commits.webkit.org/307486@main



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