Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 0ae18490cc0b7f416c42fcd927aba522e057c93f
https://github.com/WebKit/WebKit/commit/0ae18490cc0b7f416c42fcd927aba522e057c93f
Author: Ryosuke Niwa <[email protected]>
Date: 2026-04-25 (Sat, 25 Apr 2026)
Changed paths:
M Source/WebKit/UIProcess/WebPageProxyTesting.cpp
M Source/WebKit/UIProcess/WebProcessProxy.cpp
M Source/WebKit/UIProcess/WebProcessProxy.h
Log Message:
-----------
[Site Isolation] fast/events/before-unload-navigate-different-window.html
fails
https://bugs.webkit.org/show_bug.cgi?id=313075
rdar://175456940
Reviewed by Sihui Liu.
The bug was caused by WebProcessProxy::didStartProvisionalLoadForMainFrame
clobbering
WebProcessProxy::m_site to SiteState::MultipleSites when navigating from
about:blank to a file URL.
Avoid process swap in this case by preserving WebProcessProxy::m_site.
Also reset WebProcessProxy::m_site between each test.
Test: fast/events/before-unload-navigate-different-window.html
* Source/WebKit/UIProcess/WebPageProxyTesting.cpp:
(WebKit::WebPageProxyTesting::resetStateBetweenTests):
* Source/WebKit/UIProcess/WebProcessProxy.cpp:
(WebKit::WebProcessProxy::didStartProvisionalLoadForMainFrame):
(WebKit::WebProcessProxy::resetState):
* Source/WebKit/UIProcess/WebProcessProxy.h:
Canonical link: https://commits.webkit.org/312031@main
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