Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 6d7496793167c134a4d7ac0746339d217a9b555a
https://github.com/WebKit/WebKit/commit/6d7496793167c134a4d7ac0746339d217a9b555a
Author: Zak Ridouh <[email protected]>
Date: 2026-10-14 (Wed, 14 Oct 2026)
Changed paths:
M Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm
M Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolation-1.mm
Log Message:
-----------
[Site Isolation][macOS] Scroll bars in cross-site iframes keep the old style
when the system scroller style changes
<https://bugs.webkit.org/show_bug.cgi?id=326158>
<rdar://problem/189051020>
Reviewed by Tim Nguyen.
A system scroller style change only updated each page's local main frame view,
which is null in a cross-site iframe's
process, so scroll bars there kept the old style and their content stayed laid
out for it. Update every local root frame
view instead.
Test: Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolation-1.mm
* Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm:
(WebKit::WebProcess::scrollerStylePreferenceChanged):
* Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolation-1.mm:
(TestWebKitAPI::siteIsolationPreferredScrollerStyle):
(TestWebKitAPI::TEST(SiteIsolation,
ScrollerStyleChangeUpdatesCrossOriginIframe)):
Canonical link: https://commits.webkit.org/323774@main
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