Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 4cba7e116d9d2c9a09078017ab241f8fcb6708de
https://github.com/WebKit/WebKit/commit/4cba7e116d9d2c9a09078017ab241f8fcb6708de
Author: Zak Ridouh <[email protected]>
Date: 2026-10-09 (Fri, 09 Oct 2026)
Changed paths:
M Source/WebKit/Shared/WebPageCreationParameters.h
M Source/WebKit/Shared/WebPageCreationParameters.serialization.in
M Source/WebKit/UIProcess/WebPageProxy.cpp
M Source/WebKit/UIProcess/WebPageProxy.h
M Source/WebKit/WebProcess/WebPage/WebPage.cpp
M Tools/TestWebKitAPI/PlatformCocoa.cmake
M Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
A
Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolationUserAgentTests.swift
Log Message:
-----------
[Site Isolation] navigator.userAgentData ignores a custom user agent in
cross-site iframes
<https://bugs.webkit.org/show_bug.cgi?id=326210>
<rdar://problem/189096559>
Reviewed by BJ Burg.
Whether the user agent is custom was only broadcast to existing web content
processes when it changed, so new processes,
including cross-site iframe processes and the new process after a process swap,
never learned the UA was custom. The UI
process now remembers the last value it broadcast and passes it to new
processes in WebPageCreationParameters.
Test:
Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolationUserAgentTests.swift
* Source/WebKit/Shared/WebPageCreationParameters.h:
* Source/WebKit/Shared/WebPageCreationParameters.serialization.in:
* Source/WebKit/UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::setUserAgent):
(WebKit::WebPageProxy::creationParameters):
* Source/WebKit/UIProcess/WebPageProxy.h:
* Source/WebKit/WebProcess/WebPage/WebPage.cpp:
(WebKit::WebPage::WebPage):
* Tools/TestWebKitAPI/PlatformCocoa.cmake:
* Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
* Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolationUserAgentTests.swift:
Added.
(SiteIsolationUserAgentTests.userAgentDataUsesCustomUserAgentInCrossOriginIframe):
Canonical link: https://commits.webkit.org/323195@main
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