Hello, The iPadOS application I'm working on has a WKWebView which should provide an Angular app. That does still work but the routing in the javascript based application isn't anymore. The error I can inspect begins with following snippet: . ERROR Error: Uncaught (in promise): SecurityError: Blocked attempt to use history.pushState() to change session history URL from file:///Users/rindlisbacher/Library/Developer/CoreSimulator/Devices/436628E4-8D12-43E4-AE7B-8FFADA02E510/data/Containers/Bundle/Application/A17AC11F-2251-4414-A5F4-C4BC7876A0B6/APPNAME.app/index.html/ to file:///Users/rindlisbacher/Library/Developer/CoreSimulator/Devices/436628E4-8D12-43E4-AE7B-8FFADA02E510/data/Containers/Bundle/Application/A17AC11F-2251-4414-A5F4-C4BC7876A0B6/APPNAME.app/index.html/dashboard. Only differences in query and fragment are allowed for file: URLs. Since the the path must match in the URLs I have a problem. What I have found so far: It seems that the WebKit browser engine has a behaviour that isn't disabled anymore, if I interpret the source file (RuntimeApplicationsChecksCocoa.cpp) correctly: if (linkedBefore(dyld_spring_2023_os_versions, DYLD_IOS_VERSION_16_4, DYLD_MACOSX_VERSION_13_3)) { ... disableBehavior(SDKAlignedBehavior::PushStateFilePathRestriction); ... } So the check is executed and my routing fails. Check on local files: if (fullURL.isLocalFile() #if PLATFORM(COCOA) && linkedOnOrAfterSDKWithBehavior(SDKAlignedBehavior::PushStateFilePathRestriction) #endif && fullURL.fileSystemPath() != documentURL.fileSystemPath()) { return createBlockedURLSecurityErrorWithMessageSuffix("Only differences in query and fragment are allowed for file: URLs."); } Does someone know something about that and is there a workaround or something? Maybe a configuration issue..? I couldn't find anything macOS: 13.3.1 (22E261) Xcode: 14.3 (14E222b) Simulation: iPadPro (11-inch) 4th generation - iOS 16.4 Thanks in advance José