Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 657bea79ec912681175452731088a8184b46c002
      
https://github.com/WebKit/WebKit/commit/657bea79ec912681175452731088a8184b46c002
  Author: Alex Christensen <[email protected]>
  Date:   2026-10-02 (Fri, 02 Oct 2026)

  Changed paths:
    M Source/WebKit/WebProcess/WebPage/WebPage.cpp
    M Tools/TestWebKitAPI/Helpers/cocoa/TestUIDelegate.h
    M Tools/TestWebKitAPI/Helpers/cocoa/TestUIDelegate.mm
    M Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolation.mm

  Log Message:
  -----------
  Only apply window features in process where opened window's main frame is a 
LocalFrame
https://bugs.webkit.org/show_bug.cgi?id=326002
rdar://188332553

Reviewed by Brady Eidson.

Otherwise we get different size updates from different processes and 
inconsistent popup size.

Test: Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolation.mm

* Source/WebKit/WebProcess/WebPage/WebPage.cpp:
(WebKit::m_allowsImmersiveEnvironments):
* Tools/TestWebKitAPI/Helpers/cocoa/TestUIDelegate.h:
* Tools/TestWebKitAPI/Helpers/cocoa/TestUIDelegate.mm:
(-[TestUIDelegate _webView:setWindowFrame:]):
* Tools/TestWebKitAPI/Tests/WebKit/WKWebView/SiteIsolation.mm:
(TestWebKitAPI::TEST(SiteIsolation, 
WindowFeaturesOnlyAppliedInMainFrameProcess)):

Canonical link: https://commits.webkit.org/322579@main



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