Display web content in windows and implement browser features using WebKit.

Posts under WebKit tag

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SwiftUI's `WebPage` back navigation not working as expected
I'm currently testing SwiftUI's WebKit by building a browsing application. For the back navigation, I have the following code implemented: if let item = webPage.backForwardList.backList.last { webPage.load(item) print( """ ===== backForwardList.backList: \(webPage.backForwardList.backList) --- backForwardList.currentItem: \(webPage.backForwardList.currentItem) --- backForwardList.forwardList: \(webPage.backForwardList.forwardList) ===== """.trimmingCharacters(in: .whitespacesAndNewlines) ) } When I look at the logs, it shows that whenever I navigate back, the currentItem is updated with the item, but the backList is appended with the previous currentItem, and the forwardList is always empty. Am I implementing this incorrectly? Thanks in advance!
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137
Sep ’25
Can't turn off inline auto predictions in WKWebView on Mac
I have a WKWebView that contains a js text editor, built on top of a content editable div. Currently, inline predictions on Mac break the text editors functionality significantly every time there's a prediction. There's not a way for me to fix this on the js side unless I can know when a prediction is shown. I've tried disabling inline predictions and writing tools with the web view config, but it doesn't work: let config = WKWebViewConfiguration() config.writingToolsBehavior = .none config.allowsInlinePredictions = false let webView = WKWebView(frame: .zero, configuration: config) I've also tried disabling all spellcheck and autocorrect features in the html but that doesn't work either: <div contenteditable="true" spellcheck="false" autocomplete="off" autocorrect="off" autocapitalize="off"></div> Is there anything I can do to turn it off? Or, is it possible to know when the WebView is predicting text?
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382
Sep ’25
keyboard crash
My app encountered a crash problem. The analysis stack seems to be related to the keyboard. The system keyboard code is unresponsive for a long time until it crash. The feature of the stack, BrowserEngineKit, seems to indicate the webview scene. Xcode debugging found that tap the input box on the webview page can reproduce the same stack as the crash, but the crash cannot be reproduced. I noticed a feedback link https://developer.apple.com/forums/thread/784718, which is the same as the top of the crash stack I encountered, so the root cause of the problem may be similar, caused by the locking operation related to UIKeyboardTaskQueue. Hope to give some suggestions. Thanks. crash log: Incident Identifier: 39E3AFE6-43B1-4DE6-AC2B-D62C5EC89752 CrashReporter Key: AppleMetricKit Hardware Model: iPhone17,2 Process: iAliexpress Code Type: ARM-64 Parent Process: ? [1] Date/Time: 2025-07-02 22:59:00 Launch Time: Unknown OS Version: iPhone OS 18.1.1 (22B91) Report Version: 104 Exception Type: EXC_CRASH Exception Codes: KERN_SUCCESS Triggered by Thread: 0 Application Specific Information: &lt;RBSTerminateContext| domain:10 code:0x8BADF00D explanation:scene-update watchdog transgression: app&lt;com.alibaba.iAliexpress(A182346C-2A09-4082-9AAE-0EC7A1A1B5AB)&gt;:2263 exhausted real (wall clock) time allowance of 10.00 seconds ProcessVisibility: Unknown ProcessState: Running WatchdogEvent: scene-update WatchdogVisibility: Background WatchdogCPUStatistics: ( "Elapsed total CPU time (seconds): 15.280 (user 9.430, system 5.850), 25% CPU", "Elapsed application CPU time (seconds): 0.210, 0% CPU" ) reportType:CrashLog maxTerminationResistance:Interactive&gt; Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000001ea7f7f90 __psynch_cvwait :8 (in libsystem_kernel.dylib) 1 libsystem_pthread.dylib 0x000000022296aa7c _pthread_cond_wait :1248 (in libsystem_pthread.dylib) 2 Foundation 0x000000019908fa9c -[NSCondition waitUntilDate:] :132 (in Foundation) 3 Foundation 0x000000019908bea8 -[NSConditionLock lockWhenCondition:beforeDate:] :80 (in Foundation) 4 UIKitCore 0x000000019d05cbb4 -[UIKeyboardTaskQueue lockWhenReadyForMainThread] :784 (in UIKitCore) 5 UIKitCore 0x000000019d05c85c -[UIKeyboardTaskQueue waitUntilAllTasksAreFinished] :160 (in UIKitCore) 6 UIKitCore 0x000000019d56720c -[_UIKeyboardStateManager prepareForSelectionChange] :128 (in UIKitCore) 7 UIKitCore 0x000000019d5674f4 -[_UIKeyboardStateManager selectionWillChange:] :72 (in UIKitCore) 8 BrowserEngineKit 0x0000000257671688 -[BETextInteraction selectionWillChange:] :84 (in BrowserEngineKit) 9 UIKitCore 0x000000019d75d654 -[UIAsyncTextInteraction selectionWillChange:] :68 (in UIKitCore) 10 UIKitCore 0x000000019dbae374 -[_UIKeyboardTextSelectionController beginSelectionChange] :64 (in UIKitCore) 11 UIKitCore 0x000000019df5fed0 -[UITextSelectionInteraction tappedToPositionCursorWithGesture:atPoint:granularity:completionHandler:] :476 (in UIKitCore) 12 UIKitCore 0x000000019df5f948 -[UITextSelectionInteraction _checkForRepeatedTap:gestureLocationOut:] :1072 (in UIKitCore) 13 UIKitCore 0x000000019df60488 -[UITextSelectionInteraction _handleMultiTapGesture:] :852 (in UIKitCore) 14 UIKitCore 0x000000019cf879cc -[UIApplication sendAction:to:from:forEvent:] :100 (in UIKitCore) 15 UIKitCore 0x000000019d84ce98 -[UITextMultiTapRecognizer onStateUpdate:] :280 (in UIKitCore) 16 UIKitCore 0x000000019cfb6ac4 -[UIGestureRecognizerTarget _sendActionWithGestureRecognizer:] :128 (in UIKitCore) 17 UIKitCore 0x000000019cfb6934 _UIGestureRecognizerSendTargetActions :92 (in UIKitCore) 18 UIKitCore 0x000000019cfb66f4 _UIGestureRecognizerSendActions :284 (in UIKitCore) 19 UIKitCore 0x000000019cc69b28 -[UIGestureRecognizer _updateGestureForActiveEvents] :572 (in UIKitCore) 20 UIKitCore 0x000000019cc3b724 _UIGestureEnvironmentUpdate :2488 (in UIKitCore) 21 UIKitCore 0x000000019cd2fa00 -[UIGestureEnvironment _deliverEvent:toGestureRecognizers:usingBlock:] :336 (in UIKitCore) 22 UIKitCore 0x000000019cecffe4 -[UIGestureEnvironment _updateForEvent:window:] :188 (in UIKitCore) 23 UIKitCore 0x000000019cecf3c8 -[UIWindow sendEvent:] :2948 (in UIKitCore) 24 iAliexpress 0x0000000104e92000 -[UIWindow(AliHA) aliHASwizzledSendEvent:] UIWindow+AliHA.m:18 (in iAliexpress) 25 UIKitCore 0x000000019cd63b70 -[UIApplication sendEvent:] :376 (in UIKitCore) 26 iAliexpress 0x0000000104e91c84 -[UIApplication(SPM) alg_sendEvent:] AFSPMManager.m:0 (in iAliexpress) 27 UIKitCore 0x000000019cd6409c __dispatchPreprocessedEventFromEventQueue :1048 (in UIKitCore) 28 UIKitCore 0x000000019cd6df3c __processEventQueue :5696 (in UIKitCore) 29 UIKitCore 0x000000019cc66c60 updateCycleEntry :160 (in UIKitCore) 30 UIKitCore 0x000000019cc649d8 _UIUpdateSequenceRun :84 (in UIKitCore) 31 UIKitCore 0x000000019cc64628 schedulerStepScheduledMainSection :172 (in UIKitCore) 32 UIKitCore 0x000000019cc6559c runloopSourceCallback :92 (in UIKitCore) 33 CoreFoundation 0x000000019a434328 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ :28 (in CoreFoundation) 34 CoreFoundation 0x000000019a4342bc __CFRunLoopDoSource0 :176 (in CoreFoundation) 35 CoreFoundation 0x000000019a431dc0 __CFRunLoopDoSources0 :244 (in CoreFoundation) 36 CoreFoundation 0x000000019a430fbc __CFRunLoopRun :840 (in CoreFoundation) 37 CoreFoundation 0x000000019a430830 CFRunLoopRunSpecific :588 (in CoreFoundation) 38 GraphicsServices 0x00000001e64101c4 GSEventRunModal :164 (in GraphicsServices) 39 UIKitCore 0x000000019cf96eb0 -[UIApplication _run] :816 (in UIKitCore) 40 UIKitCore 0x000000019d0455b4 UIApplicationMain :340 (in UIKitCore) 41 iAliexpress 0x0000000104e9b0b8 _main main.m:17 (in iAliexpress) 42 dyld 0x00000001bfe1eec8 start :2724 (in dyld)
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235
Sep ’25
iOS 26 Webview and alert issue
Hello, In iOS 26 beta, we are seeing an unexpected behavior when using SwiftUI WebView (or a custom WKWebView via UIViewRepresentable). When an alert is presented above the WebView, the WebView immediately reloads to its initial page. The alert itself also disappears instantly, making it impossible for the user to interact with it. This issue occurs both with the new SwiftUI WebView / WebPage API and with a wrapped WKWebView. The problem was not present in previous iOS versions (iOS 17/18). Steps to reproduce: Create a SwiftUI view with a WebView (pointing to any URL). Add a toolbar button that toggles a SwiftUI alert. Run the app on iOS 26 beta. Tap the button to trigger the alert. Expected behavior: The WebView should remain as-is, and the alert should stay visible until the user dismisses it. Actual behavior: As soon as the alert appears, the WebView reloads and resets to the initial page. The alert disappears immediately. Minimal Example: struct ContentView: View { @State private var showAlert = false var body: some View { NavigationStack { WebView(URL(string: "https://apple.com")!) .toolbar { ToolbarItem(placement: .topBarTrailing) { Button("Close") { showAlert = true } } } .alert("Confirm close?", isPresented: $showAlert) { Button("Cancel", role: .cancel) {} Button("Close", role: .destructive) {} } } } } I'm using Xcode Version 26.0 beta 7 Thanks for your help.
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910
Sep ’25
IOS 26 new Feature Flag? What is a „related quirk“?
It‘s called Track Configuration API found in the iOS 26.0 Public Beta 5. No explanation anywhere on the web Or release notes, it’s not mentioned anywhere. I‘m very interested in new tracking innovations. And another small thing I‘ve never found out, what is „fingerprint related quirk“ is that an insider joke Or something? I don‘t know it‘s actions. Thank you for answering
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366
Sep ’25
VisionOS: WKWebView stops rendering after WindowGroup is closed
I'm building a visionOS app where users can place canvases into the 3D environment. These canvases are RealityKit entities that render web content using a WKWebView. The web view is regularly snapshotted, and its image is applied as a texture on the canvas surface. When the user taps on a canvas, a WindowGroup is opened that displays the same shared WKWebView instance. This works great: both the canvas in 3D and the WindowGroup reflect the same live web content. The canvas owns the WKWebView and keeps a strong reference to it. Problem: Once the user closes the WindowGroup, the 3D canvas stops receiving snapshot updates. The snapshot loop task is still running (verified via logs), but WKWebView.takeSnapshot(...) never returns — the continuation hangs forever. No error is thrown, no image is returned. If the user taps the canvas again (reopening the window), snapshots resume and everything works again. @MainActor private func getSnapshot() async -> UIImage? { guard !webView.isLoading else { return nil } let config = WKSnapshotConfiguration() config.rect = webView.bounds config.afterScreenUpdates = true return await withCheckedContinuation { continuation in webView.takeSnapshot(with: config) { image, _ in continuation.resume(returning: image) } } } What I’ve already verified: The WKWebView is still in memory. The snapshot loop (Task) is still running; it just gets stuck inside takeSnapshot(...). I tried keeping the WKWebView inside a hidden UIWindow (with .alpha = 0.01, .windowLevel = .alert + 1, and isHidden = false). Suspicion It seems that once a WKWebView is passed into SwiftUI and rendered (e.g., via UIViewRepresentable), SwiftUI takes full control over its lifecycle. SwiftUI tells WebKit "This view got closed" and WebKit reacts by stopping the WKWebView. Even though it still exists in memory and is being hold by a strong reference to it in the Canvas-Entity. Right now, this feels like a one-way path: Starting from the canvas, tapping it to open the WindowGroup works fine. But once the WindowGroup is closed, the WebView freezes, and snapshots stop until the view is reopened. Questions Is there any way under visionOS to: Keep a WKWebView rendering after its SwiftUI view (WindowGroup) is dismissed? Prevent WebKit from suspending or freezing the view? Embed the view in a persistent system-rendered context to keep snapshotting functional? For context, here's the relevant SwiftUI setup struct MyWebView: View { var body: some View { if let webView = WebViewManager.shared.getWebView() { WebViewContainer(webView: webView) } } } struct WebViewContainer: UIViewRepresentable { let webView: WKWebView func makeUIView(context: Context) -> UIView { return webView } func updateUIView(_ uiView: UIView, context: Context) {} }
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Aug ’25
MediaRecorder as PWA on iOS
Hey, very strange problem I have on iOS when shared web as an app (pwa) to home screen. Whenever I use it via safari browser on iPhone, it works 100% fine every time. However, when I put it as an app on home screen, first time I open it it works fine, when i close it and reopen again, it just doesnt start recording. I have to restart my phone for it to work. So it works one time, I guess somehow it doesnt end stream or something, but in code I've tried all the possible ways to close and clean the track. tried GPT, Claude, Gemini solutions. nothing worked, it just works 1 time as PWA. my last hope is someone else encountered this issue and may try to help me ? https://pastebin.com/85i2L2vH
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381
Aug ’25
WKWebView LoadRequest crash on ios 26
Since the ios 26 beta our app is crashing when calling LoadRequest() on the wkwebview class. The app crashes out completely when it occurs even in the debugger, I was able to get a stack trace from our Sentry crash handler. See below It seems that calling LoadRequest from the mainthread fixes the issue but I don't understand why, theres no documentation to suggest this must be done. Any ideas? Below is the stack trace I got from Sentry: WebKit +0x0054e00 WebKit::allDataStores WebKit +0x0bf34f4 WebKit::NetworkProcessProxy::preconnectTo WebKit +0x0acef64 WebKit::WebPageProxy::preconnectTo WebKit +0x0b0d92c WTF::Detail::CallableWrapper::call WebKit +0x0ab6cf8 WebKit::WebPageProxy::maybeInitializeSandboxExtensionHandle WebKit +0x0ab84dc WebKit::WebPageProxy::loadRequestWithNavigationShared WebKit +0x0ab7adc WebKit::WebPageProxy::loadRequest WebKit +0x05d0704 -[WKWebView loadRequest:] Grid3iOS +0x5240944 xamarin_dyn_objc_msgSendSuper In App Grid3iOS +0x187dec4 wrapper_managed_to_native_ObjCRuntime_Messaging_NativeHandle_objc_msgSendSuper_NativeHandle_intptr_intptr_ObjCRuntime_NativeHandle In App Grid3iOS +0x512fac4 Microsoft_iOS_WebKit_WKWebView_LoadRequest_Foundation_NSUrlRequest (WKWebView.g.cs:572)
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Aug ’25
The tag displayed in native webview does not work in iPadOS 26 Beta
I'm creating an iPad app using Xcode 26 Beta 6. I have the following simple code and web page, but when I tap the file selection button, nothing appears. Do I need to add any additional code? code struct SwiftUIWebView: View { @State private var webPage = WebPage() private let url = URL(string: "https://www.xxxx.com/")! var body: some View { WebView(webPage) .onAppear { webPage.load(URLRequest(url: url)) } } } web page <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Test</title> </style> </head> <body> <div id="container"> <input type="file" /> </div> </body> </html>
Topic: Safari & Web SubTopic: General Tags:
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353
Aug ’25
"CALayer position contains NaN" Crash in WKWebView on iOS 26 Beta
I’m experiencing a crash in WKWebView on iOS 26 Developer Beta 5 and Beta 6 with the following exception: CALayer position contains NaN: [nan 65] The crash occurs when the following CSS properties are applied to content displayed in WKWebView: -webkit-user-select: none; -webkit-touch-callout: none; This issue happens consistently whenever these styles are set, leading to the crash inside WKWebView. Is this a known bug in the current iOS 26 betas, or is there a recommended workaround?
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680
Aug ’25
Allowing workaround for FamilyActivityPicker crash
As discussed and acknowledged here, there is a known bug with the FamilyActivityPicker. When a user expands a category that contains enough tokens to exceed the 50mb memory limit, the FamilyActivityPicker crashes. This happens quite frequently for heavy Safari users. An apple engineer mentioned on this thread that WebDomains shown in the picker are present based on the last 30 days of usage data as surfaced by WebKit. Is there any way a user can clear these WebDomains? Either programatically through our app or any other process we can guide them to as a workaround while this issue is getting fixed?
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720
Aug ’25
Issue with opening browser on Apple Watch SE 2 – black screen
Hello, I am experiencing an issue when trying to open the browser on my Apple Watch SE 2 running the latest version, watchOS 11.6. When I attempt to visit any website, the browser opens and displays the URL at the top as if it is loading, but the screen remains black and no content is displayed. The internet connection is available, and all other apps on the watch work normally. This issue occurs only with the browser. I would appreciate any guidance or solution to resolve this problem. Thank you for your assistance.
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664
Aug ’25
WKWebView crash on iOS 26 Beta with -webkit-user-select: none
On iOS 26 Beta, WKWebView consistently crashes when interacting with pages that use -webkit-user-select: none. This issue does not reproduce in Safari, but only when the same content is loaded inside a WKWebView. Steps to Reproduce: Install iOS 26 Beta. Open a WKWebView that loads a webpage with the following style applied globally: -webkit-user-select: none; Perform the following gesture sequence inside the WKWebView: Double tap anywhere in the web content. On the second tap, keep your finger pressed (do not lift). While still holding the second tap, drag your finger across the screen (pan). This sequence reliably produces the crash. Expected Result: No crash. The gesture should either be ignored or handled gracefully. Actual Result: The app crashes 100% of the time with the following exception: #0 0x000000013f1a0874 in __pthread_kill () #1 0x00000001357522ec in pthread_kill () #2 0x00000001801ad950 in abort () #3 0x00000001802fa26c in __abort_message () #4 0x00000001802ea1a4 in demangling_terminate_handler () #5 0x0000000180077218 in _objc_terminate () #6 0x00000001802f9758 in std::__terminate () #7 0x00000001802fc7c0 in __cxxabiv1::failed_throw () #8 0x00000001802fc7a0 in __cxa_throw () #9 0x000000018009c1bc in objc_exception_throw () #10 0x00000001804f38f8 in +[NSException raise:format:] () #11 0x000000018c5fb570 in -[CALayer setPosition:] () #12 0x0000000185d02414 in -[UIView _backing_setPosition:] () #13 0x00000001867ec978 in -[UIView setCenter:] () #14 0x0000000186666468 in -[_UIEditMenuContentPresentation _displayPreparedMenu:titleView:reason:didDismissMenu:configuration:] () #15 0x0000000186666088 in __54-[_UIEditMenuContentPresentation _displayMenu:reason:]_block_invoke () #16 0x00000001867b3ed4 in -[UIEditMenuInteraction _editMenuPresentation:preparedMenuForDisplay:completion:] () #17 0x0000000186665fb0 in -[_UIEditMenuContentPresentation _displayMenu:reason:] () #18 0x0000000186665de4 in -[_UIEditMenuContentPresentation displayMenu:configuration:] () #19 0x00000001867b3260 in __58-[UIEditMenuInteraction presentEditMenuWithConfiguration:]_block_invoke () #20 0x00000001867b4c98 in __80-[UIEditMenuInteraction _prepareMenuAtLocation:configuration:completionHandler:]_block_invoke () #21 0x000000018653ff80 in __109-[UITextContextMenuInteraction _editMenuInteraction:menuForConfiguration:suggestedActions:completionHandler:]_block_invoke () #22 0x0000000186540448 in __107-[UITextContextMenuInteraction _querySelectionCommandsForConfiguration:suggestedActions:completionHandler:]_block_invoke () #23 0x000000018dba84f8 in WTF::Detail::CallableWrapper<WTF::CompletionHandler<void (IPC::Connection*, IPC::Decoder*)> IPC::Connection::makeAsyncReplyCompletionHandler<Messages::WebPage::RequestDocumentEditingContext, WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>>(WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>&&, WTF::ThreadLikeAssertion)::'lambda'(IPC::Connection*, IPC::Decoder*), void, IPC::Connection*, IPC::Decoder*>::call () #24 0x000000018dca14cc in WTF::Detail::CallableWrapper<WebKit::AuxiliaryProcessProxy::sendMessage(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption>, std::__1::optional<IPC::ConnectionAsyncReplyHandler>, WebKit::AuxiliaryProcessProxy::ShouldStartProcessThrottlerActivity)::$_1, void, IPC::Connection*, IPC::Decoder*>::call () #25 0x000000018e2d5c54 in IPC::Connection::dispatchMessage () #26 0x000000018e2d6118 in IPC::Connection::dispatchIncomingMessages () #27 0x00000001997f9c58 in WTF::RunLoop::performWork () #28 0x00000001997fa930 in WTF::RunLoop::performWork () #29 0x000000018044d4dc in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ () #30 0x000000018044d424 in __CFRunLoopDoSource0 () #31 0x000000018044cc0c in __CFRunLoopDoSources0 () #32 0x000000018044bd84 in __CFRunLoopRun () #33 0x0000000180446e24 in _CFRunLoopRunSpecificWithOptions () #34 0x00000001924c19bc in GSEventRunModal () #35 0x00000001862217a8 in -[UIApplication _run] () #36 0x00000001862259d0 in UIApplicationMain () Same issues below. https://developer.apple.com/forums/thread/796799 https://developer.apple.com/forums/thread/796501 https://developer.apple.com/forums/thread/796874 https://developer.apple.com/forums/thread/796686
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1.3k
Aug ’25
SwiftUI's `WebPage` back navigation not working as expected
I'm currently testing SwiftUI's WebKit by building a browsing application. For the back navigation, I have the following code implemented: if let item = webPage.backForwardList.backList.last { webPage.load(item) print( """ ===== backForwardList.backList: \(webPage.backForwardList.backList) --- backForwardList.currentItem: \(webPage.backForwardList.currentItem) --- backForwardList.forwardList: \(webPage.backForwardList.forwardList) ===== """.trimmingCharacters(in: .whitespacesAndNewlines) ) } When I look at the logs, it shows that whenever I navigate back, the currentItem is updated with the item, but the backList is appended with the previous currentItem, and the forwardList is always empty. Am I implementing this incorrectly? Thanks in advance!
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137
Activity
Sep ’25
Can't turn off inline auto predictions in WKWebView on Mac
I have a WKWebView that contains a js text editor, built on top of a content editable div. Currently, inline predictions on Mac break the text editors functionality significantly every time there's a prediction. There's not a way for me to fix this on the js side unless I can know when a prediction is shown. I've tried disabling inline predictions and writing tools with the web view config, but it doesn't work: let config = WKWebViewConfiguration() config.writingToolsBehavior = .none config.allowsInlinePredictions = false let webView = WKWebView(frame: .zero, configuration: config) I've also tried disabling all spellcheck and autocorrect features in the html but that doesn't work either: <div contenteditable="true" spellcheck="false" autocomplete="off" autocorrect="off" autocapitalize="off"></div> Is there anything I can do to turn it off? Or, is it possible to know when the WebView is predicting text?
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1
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0
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382
Activity
Sep ’25
keyboard crash
My app encountered a crash problem. The analysis stack seems to be related to the keyboard. The system keyboard code is unresponsive for a long time until it crash. The feature of the stack, BrowserEngineKit, seems to indicate the webview scene. Xcode debugging found that tap the input box on the webview page can reproduce the same stack as the crash, but the crash cannot be reproduced. I noticed a feedback link https://developer.apple.com/forums/thread/784718, which is the same as the top of the crash stack I encountered, so the root cause of the problem may be similar, caused by the locking operation related to UIKeyboardTaskQueue. Hope to give some suggestions. Thanks. crash log: Incident Identifier: 39E3AFE6-43B1-4DE6-AC2B-D62C5EC89752 CrashReporter Key: AppleMetricKit Hardware Model: iPhone17,2 Process: iAliexpress Code Type: ARM-64 Parent Process: ? [1] Date/Time: 2025-07-02 22:59:00 Launch Time: Unknown OS Version: iPhone OS 18.1.1 (22B91) Report Version: 104 Exception Type: EXC_CRASH Exception Codes: KERN_SUCCESS Triggered by Thread: 0 Application Specific Information: &lt;RBSTerminateContext| domain:10 code:0x8BADF00D explanation:scene-update watchdog transgression: app&lt;com.alibaba.iAliexpress(A182346C-2A09-4082-9AAE-0EC7A1A1B5AB)&gt;:2263 exhausted real (wall clock) time allowance of 10.00 seconds ProcessVisibility: Unknown ProcessState: Running WatchdogEvent: scene-update WatchdogVisibility: Background WatchdogCPUStatistics: ( "Elapsed total CPU time (seconds): 15.280 (user 9.430, system 5.850), 25% CPU", "Elapsed application CPU time (seconds): 0.210, 0% CPU" ) reportType:CrashLog maxTerminationResistance:Interactive&gt; Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000001ea7f7f90 __psynch_cvwait :8 (in libsystem_kernel.dylib) 1 libsystem_pthread.dylib 0x000000022296aa7c _pthread_cond_wait :1248 (in libsystem_pthread.dylib) 2 Foundation 0x000000019908fa9c -[NSCondition waitUntilDate:] :132 (in Foundation) 3 Foundation 0x000000019908bea8 -[NSConditionLock lockWhenCondition:beforeDate:] :80 (in Foundation) 4 UIKitCore 0x000000019d05cbb4 -[UIKeyboardTaskQueue lockWhenReadyForMainThread] :784 (in UIKitCore) 5 UIKitCore 0x000000019d05c85c -[UIKeyboardTaskQueue waitUntilAllTasksAreFinished] :160 (in UIKitCore) 6 UIKitCore 0x000000019d56720c -[_UIKeyboardStateManager prepareForSelectionChange] :128 (in UIKitCore) 7 UIKitCore 0x000000019d5674f4 -[_UIKeyboardStateManager selectionWillChange:] :72 (in UIKitCore) 8 BrowserEngineKit 0x0000000257671688 -[BETextInteraction selectionWillChange:] :84 (in BrowserEngineKit) 9 UIKitCore 0x000000019d75d654 -[UIAsyncTextInteraction selectionWillChange:] :68 (in UIKitCore) 10 UIKitCore 0x000000019dbae374 -[_UIKeyboardTextSelectionController beginSelectionChange] :64 (in UIKitCore) 11 UIKitCore 0x000000019df5fed0 -[UITextSelectionInteraction tappedToPositionCursorWithGesture:atPoint:granularity:completionHandler:] :476 (in UIKitCore) 12 UIKitCore 0x000000019df5f948 -[UITextSelectionInteraction _checkForRepeatedTap:gestureLocationOut:] :1072 (in UIKitCore) 13 UIKitCore 0x000000019df60488 -[UITextSelectionInteraction _handleMultiTapGesture:] :852 (in UIKitCore) 14 UIKitCore 0x000000019cf879cc -[UIApplication sendAction:to:from:forEvent:] :100 (in UIKitCore) 15 UIKitCore 0x000000019d84ce98 -[UITextMultiTapRecognizer onStateUpdate:] :280 (in UIKitCore) 16 UIKitCore 0x000000019cfb6ac4 -[UIGestureRecognizerTarget _sendActionWithGestureRecognizer:] :128 (in UIKitCore) 17 UIKitCore 0x000000019cfb6934 _UIGestureRecognizerSendTargetActions :92 (in UIKitCore) 18 UIKitCore 0x000000019cfb66f4 _UIGestureRecognizerSendActions :284 (in UIKitCore) 19 UIKitCore 0x000000019cc69b28 -[UIGestureRecognizer _updateGestureForActiveEvents] :572 (in UIKitCore) 20 UIKitCore 0x000000019cc3b724 _UIGestureEnvironmentUpdate :2488 (in UIKitCore) 21 UIKitCore 0x000000019cd2fa00 -[UIGestureEnvironment _deliverEvent:toGestureRecognizers:usingBlock:] :336 (in UIKitCore) 22 UIKitCore 0x000000019cecffe4 -[UIGestureEnvironment _updateForEvent:window:] :188 (in UIKitCore) 23 UIKitCore 0x000000019cecf3c8 -[UIWindow sendEvent:] :2948 (in UIKitCore) 24 iAliexpress 0x0000000104e92000 -[UIWindow(AliHA) aliHASwizzledSendEvent:] UIWindow+AliHA.m:18 (in iAliexpress) 25 UIKitCore 0x000000019cd63b70 -[UIApplication sendEvent:] :376 (in UIKitCore) 26 iAliexpress 0x0000000104e91c84 -[UIApplication(SPM) alg_sendEvent:] AFSPMManager.m:0 (in iAliexpress) 27 UIKitCore 0x000000019cd6409c __dispatchPreprocessedEventFromEventQueue :1048 (in UIKitCore) 28 UIKitCore 0x000000019cd6df3c __processEventQueue :5696 (in UIKitCore) 29 UIKitCore 0x000000019cc66c60 updateCycleEntry :160 (in UIKitCore) 30 UIKitCore 0x000000019cc649d8 _UIUpdateSequenceRun :84 (in UIKitCore) 31 UIKitCore 0x000000019cc64628 schedulerStepScheduledMainSection :172 (in UIKitCore) 32 UIKitCore 0x000000019cc6559c runloopSourceCallback :92 (in UIKitCore) 33 CoreFoundation 0x000000019a434328 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ :28 (in CoreFoundation) 34 CoreFoundation 0x000000019a4342bc __CFRunLoopDoSource0 :176 (in CoreFoundation) 35 CoreFoundation 0x000000019a431dc0 __CFRunLoopDoSources0 :244 (in CoreFoundation) 36 CoreFoundation 0x000000019a430fbc __CFRunLoopRun :840 (in CoreFoundation) 37 CoreFoundation 0x000000019a430830 CFRunLoopRunSpecific :588 (in CoreFoundation) 38 GraphicsServices 0x00000001e64101c4 GSEventRunModal :164 (in GraphicsServices) 39 UIKitCore 0x000000019cf96eb0 -[UIApplication _run] :816 (in UIKitCore) 40 UIKitCore 0x000000019d0455b4 UIApplicationMain :340 (in UIKitCore) 41 iAliexpress 0x0000000104e9b0b8 _main main.m:17 (in iAliexpress) 42 dyld 0x00000001bfe1eec8 start :2724 (in dyld)
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Sep ’25
Facing issue with safariViewCotroller when online video played.
Video in Landscape takes 2 taps on X to close.This issue can be replicated on iphone 14 ios 18.5.There is no issue on iPhone 15 ios 18.5.
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Sep ’25
Create App with IFRAME WordPress + Elementor
Hello, I need some help. I’m creating an application, but in fact it is just an instance of a web page built with WordPress and Elementor. When submitting it for review, the following adjustment is required: 4.2.2 Design: Minimum Functionality App example: https://applink.com.br/appfortrade
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Sep ’25
iOS 26 Webview and alert issue
Hello, In iOS 26 beta, we are seeing an unexpected behavior when using SwiftUI WebView (or a custom WKWebView via UIViewRepresentable). When an alert is presented above the WebView, the WebView immediately reloads to its initial page. The alert itself also disappears instantly, making it impossible for the user to interact with it. This issue occurs both with the new SwiftUI WebView / WebPage API and with a wrapped WKWebView. The problem was not present in previous iOS versions (iOS 17/18). Steps to reproduce: Create a SwiftUI view with a WebView (pointing to any URL). Add a toolbar button that toggles a SwiftUI alert. Run the app on iOS 26 beta. Tap the button to trigger the alert. Expected behavior: The WebView should remain as-is, and the alert should stay visible until the user dismisses it. Actual behavior: As soon as the alert appears, the WebView reloads and resets to the initial page. The alert disappears immediately. Minimal Example: struct ContentView: View { @State private var showAlert = false var body: some View { NavigationStack { WebView(URL(string: "https://apple.com")!) .toolbar { ToolbarItem(placement: .topBarTrailing) { Button("Close") { showAlert = true } } } .alert("Confirm close?", isPresented: $showAlert) { Button("Cancel", role: .cancel) {} Button("Close", role: .destructive) {} } } } } I'm using Xcode Version 26.0 beta 7 Thanks for your help.
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Sep ’25
IOS 26 new Feature Flag? What is a „related quirk“?
It‘s called Track Configuration API found in the iOS 26.0 Public Beta 5. No explanation anywhere on the web Or release notes, it’s not mentioned anywhere. I‘m very interested in new tracking innovations. And another small thing I‘ve never found out, what is „fingerprint related quirk“ is that an insider joke Or something? I don‘t know it‘s actions. Thank you for answering
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Sep ’25
System Crash Reports When Using Installer Plug-in with WebView on macOS 26
Create an Installer Plug-in project and Add a WebView control to the pane’s .xib file.(Just the simple functionality of local HTML in reality.) add .bundle file into Installer Package A. Run Installer Package A on macOS 26. Result: The WebView displays correctly, and the installation completes successfully, but the system produces crash reports.
Topic: UI Frameworks SubTopic: UIKit Tags:
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Sep ’25
WKWebView in full screen shows black instead of webpage on macOS 26 beta
As you see in the image, when I fullscreen in WKWebView, it shows black instead of the webpage in full screen. It works fine in Sequoia. It has happened to me since beta 1, but I post it now, because we’re in beta 8 and it’s not fixed. What’s going on? Can somebody tell me if they have the same issue?
Topic: Safari & Web SubTopic: General Tags:
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Aug ’25
VisionOS: WKWebView stops rendering after WindowGroup is closed
I'm building a visionOS app where users can place canvases into the 3D environment. These canvases are RealityKit entities that render web content using a WKWebView. The web view is regularly snapshotted, and its image is applied as a texture on the canvas surface. When the user taps on a canvas, a WindowGroup is opened that displays the same shared WKWebView instance. This works great: both the canvas in 3D and the WindowGroup reflect the same live web content. The canvas owns the WKWebView and keeps a strong reference to it. Problem: Once the user closes the WindowGroup, the 3D canvas stops receiving snapshot updates. The snapshot loop task is still running (verified via logs), but WKWebView.takeSnapshot(...) never returns — the continuation hangs forever. No error is thrown, no image is returned. If the user taps the canvas again (reopening the window), snapshots resume and everything works again. @MainActor private func getSnapshot() async -> UIImage? { guard !webView.isLoading else { return nil } let config = WKSnapshotConfiguration() config.rect = webView.bounds config.afterScreenUpdates = true return await withCheckedContinuation { continuation in webView.takeSnapshot(with: config) { image, _ in continuation.resume(returning: image) } } } What I’ve already verified: The WKWebView is still in memory. The snapshot loop (Task) is still running; it just gets stuck inside takeSnapshot(...). I tried keeping the WKWebView inside a hidden UIWindow (with .alpha = 0.01, .windowLevel = .alert + 1, and isHidden = false). Suspicion It seems that once a WKWebView is passed into SwiftUI and rendered (e.g., via UIViewRepresentable), SwiftUI takes full control over its lifecycle. SwiftUI tells WebKit "This view got closed" and WebKit reacts by stopping the WKWebView. Even though it still exists in memory and is being hold by a strong reference to it in the Canvas-Entity. Right now, this feels like a one-way path: Starting from the canvas, tapping it to open the WindowGroup works fine. But once the WindowGroup is closed, the WebView freezes, and snapshots stop until the view is reopened. Questions Is there any way under visionOS to: Keep a WKWebView rendering after its SwiftUI view (WindowGroup) is dismissed? Prevent WebKit from suspending or freezing the view? Embed the view in a persistent system-rendered context to keep snapshotting functional? For context, here's the relevant SwiftUI setup struct MyWebView: View { var body: some View { if let webView = WebViewManager.shared.getWebView() { WebViewContainer(webView: webView) } } } struct WebViewContainer: UIViewRepresentable { let webView: WKWebView func makeUIView(context: Context) -> UIView { return webView } func updateUIView(_ uiView: UIView, context: Context) {} }
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Aug ’25
MediaRecorder as PWA on iOS
Hey, very strange problem I have on iOS when shared web as an app (pwa) to home screen. Whenever I use it via safari browser on iPhone, it works 100% fine every time. However, when I put it as an app on home screen, first time I open it it works fine, when i close it and reopen again, it just doesnt start recording. I have to restart my phone for it to work. So it works one time, I guess somehow it doesnt end stream or something, but in code I've tried all the possible ways to close and clean the track. tried GPT, Claude, Gemini solutions. nothing worked, it just works 1 time as PWA. my last hope is someone else encountered this issue and may try to help me ? https://pastebin.com/85i2L2vH
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Activity
Aug ’25
SwiftUI WebView in sheet not honoring swipe to dismiss
I’ve got the new SwiftUi webview in a sheet. When I pull down the contents from the top of the page I expect it to dismiss the sheet, but it does not. Is there a workaround or modifier I’m missing?
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Activity
Aug ’25
WKWebView LoadRequest crash on ios 26
Since the ios 26 beta our app is crashing when calling LoadRequest() on the wkwebview class. The app crashes out completely when it occurs even in the debugger, I was able to get a stack trace from our Sentry crash handler. See below It seems that calling LoadRequest from the mainthread fixes the issue but I don't understand why, theres no documentation to suggest this must be done. Any ideas? Below is the stack trace I got from Sentry: WebKit +0x0054e00 WebKit::allDataStores WebKit +0x0bf34f4 WebKit::NetworkProcessProxy::preconnectTo WebKit +0x0acef64 WebKit::WebPageProxy::preconnectTo WebKit +0x0b0d92c WTF::Detail::CallableWrapper::call WebKit +0x0ab6cf8 WebKit::WebPageProxy::maybeInitializeSandboxExtensionHandle WebKit +0x0ab84dc WebKit::WebPageProxy::loadRequestWithNavigationShared WebKit +0x0ab7adc WebKit::WebPageProxy::loadRequest WebKit +0x05d0704 -[WKWebView loadRequest:] Grid3iOS +0x5240944 xamarin_dyn_objc_msgSendSuper In App Grid3iOS +0x187dec4 wrapper_managed_to_native_ObjCRuntime_Messaging_NativeHandle_objc_msgSendSuper_NativeHandle_intptr_intptr_ObjCRuntime_NativeHandle In App Grid3iOS +0x512fac4 Microsoft_iOS_WebKit_WKWebView_LoadRequest_Foundation_NSUrlRequest (WKWebView.g.cs:572)
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Aug ’25
The tag displayed in native webview does not work in iPadOS 26 Beta
I'm creating an iPad app using Xcode 26 Beta 6. I have the following simple code and web page, but when I tap the file selection button, nothing appears. Do I need to add any additional code? code struct SwiftUIWebView: View { @State private var webPage = WebPage() private let url = URL(string: "https://www.xxxx.com/")! var body: some View { WebView(webPage) .onAppear { webPage.load(URLRequest(url: url)) } } } web page <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Test</title> </style> </head> <body> <div id="container"> <input type="file" /> </div> </body> </html>
Topic: Safari & Web SubTopic: General Tags:
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Activity
Aug ’25
WKWebview doesn't respond to click events when multiple fingers are used
If we use webView.loadFileURL(indexURL, allowingReadAccessTo: readAccessURL) on an iPad it loads the data and navigation works. But if we place two hands on top of the screen and move a bit, all click events are not working anymore. It works again if we call loadFileURL again. We filled a bug report: FB19812304
Topic: Safari & Web SubTopic: General Tags:
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Activity
Aug ’25
"CALayer position contains NaN" Crash in WKWebView on iOS 26 Beta
I’m experiencing a crash in WKWebView on iOS 26 Developer Beta 5 and Beta 6 with the following exception: CALayer position contains NaN: [nan 65] The crash occurs when the following CSS properties are applied to content displayed in WKWebView: -webkit-user-select: none; -webkit-touch-callout: none; This issue happens consistently whenever these styles are set, leading to the crash inside WKWebView. Is this a known bug in the current iOS 26 betas, or is there a recommended workaround?
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Activity
Aug ’25
Allowing workaround for FamilyActivityPicker crash
As discussed and acknowledged here, there is a known bug with the FamilyActivityPicker. When a user expands a category that contains enough tokens to exceed the 50mb memory limit, the FamilyActivityPicker crashes. This happens quite frequently for heavy Safari users. An apple engineer mentioned on this thread that WebDomains shown in the picker are present based on the last 30 days of usage data as surfaced by WebKit. Is there any way a user can clear these WebDomains? Either programatically through our app or any other process we can guide them to as a workaround while this issue is getting fixed?
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Activity
Aug ’25
Issue with opening browser on Apple Watch SE 2 – black screen
Hello, I am experiencing an issue when trying to open the browser on my Apple Watch SE 2 running the latest version, watchOS 11.6. When I attempt to visit any website, the browser opens and displays the URL at the top as if it is loading, but the screen remains black and no content is displayed. The internet connection is available, and all other apps on the watch work normally. This issue occurs only with the browser. I would appreciate any guidance or solution to resolve this problem. Thank you for your assistance.
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Activity
Aug ’25
Should UIScrollEdgeElementContainerInteraction work with a WKWebView's scroll view?
In iOS 26 beta 3, it was possible to have a UIScrollEdgeElementContainerInteraction work with a WKWebView's scroll view. But it stopped working in beta 4, and is still broken in beta 5 today. Is this expected? Or is this a bug that will be fixed before public release? Filed as FB19386650 with a trivial sample app.
Topic: UI Frameworks SubTopic: UIKit Tags:
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Activity
Aug ’25
WKWebView crash on iOS 26 Beta with -webkit-user-select: none
On iOS 26 Beta, WKWebView consistently crashes when interacting with pages that use -webkit-user-select: none. This issue does not reproduce in Safari, but only when the same content is loaded inside a WKWebView. Steps to Reproduce: Install iOS 26 Beta. Open a WKWebView that loads a webpage with the following style applied globally: -webkit-user-select: none; Perform the following gesture sequence inside the WKWebView: Double tap anywhere in the web content. On the second tap, keep your finger pressed (do not lift). While still holding the second tap, drag your finger across the screen (pan). This sequence reliably produces the crash. Expected Result: No crash. The gesture should either be ignored or handled gracefully. Actual Result: The app crashes 100% of the time with the following exception: #0 0x000000013f1a0874 in __pthread_kill () #1 0x00000001357522ec in pthread_kill () #2 0x00000001801ad950 in abort () #3 0x00000001802fa26c in __abort_message () #4 0x00000001802ea1a4 in demangling_terminate_handler () #5 0x0000000180077218 in _objc_terminate () #6 0x00000001802f9758 in std::__terminate () #7 0x00000001802fc7c0 in __cxxabiv1::failed_throw () #8 0x00000001802fc7a0 in __cxa_throw () #9 0x000000018009c1bc in objc_exception_throw () #10 0x00000001804f38f8 in +[NSException raise:format:] () #11 0x000000018c5fb570 in -[CALayer setPosition:] () #12 0x0000000185d02414 in -[UIView _backing_setPosition:] () #13 0x00000001867ec978 in -[UIView setCenter:] () #14 0x0000000186666468 in -[_UIEditMenuContentPresentation _displayPreparedMenu:titleView:reason:didDismissMenu:configuration:] () #15 0x0000000186666088 in __54-[_UIEditMenuContentPresentation _displayMenu:reason:]_block_invoke () #16 0x00000001867b3ed4 in -[UIEditMenuInteraction _editMenuPresentation:preparedMenuForDisplay:completion:] () #17 0x0000000186665fb0 in -[_UIEditMenuContentPresentation _displayMenu:reason:] () #18 0x0000000186665de4 in -[_UIEditMenuContentPresentation displayMenu:configuration:] () #19 0x00000001867b3260 in __58-[UIEditMenuInteraction presentEditMenuWithConfiguration:]_block_invoke () #20 0x00000001867b4c98 in __80-[UIEditMenuInteraction _prepareMenuAtLocation:configuration:completionHandler:]_block_invoke () #21 0x000000018653ff80 in __109-[UITextContextMenuInteraction _editMenuInteraction:menuForConfiguration:suggestedActions:completionHandler:]_block_invoke () #22 0x0000000186540448 in __107-[UITextContextMenuInteraction _querySelectionCommandsForConfiguration:suggestedActions:completionHandler:]_block_invoke () #23 0x000000018dba84f8 in WTF::Detail::CallableWrapper<WTF::CompletionHandler<void (IPC::Connection*, IPC::Decoder*)> IPC::Connection::makeAsyncReplyCompletionHandler<Messages::WebPage::RequestDocumentEditingContext, WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>>(WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>&&, WTF::ThreadLikeAssertion)::'lambda'(IPC::Connection*, IPC::Decoder*), void, IPC::Connection*, IPC::Decoder*>::call () #24 0x000000018dca14cc in WTF::Detail::CallableWrapper<WebKit::AuxiliaryProcessProxy::sendMessage(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption>, std::__1::optional<IPC::ConnectionAsyncReplyHandler>, WebKit::AuxiliaryProcessProxy::ShouldStartProcessThrottlerActivity)::$_1, void, IPC::Connection*, IPC::Decoder*>::call () #25 0x000000018e2d5c54 in IPC::Connection::dispatchMessage () #26 0x000000018e2d6118 in IPC::Connection::dispatchIncomingMessages () #27 0x00000001997f9c58 in WTF::RunLoop::performWork () #28 0x00000001997fa930 in WTF::RunLoop::performWork () #29 0x000000018044d4dc in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ () #30 0x000000018044d424 in __CFRunLoopDoSource0 () #31 0x000000018044cc0c in __CFRunLoopDoSources0 () #32 0x000000018044bd84 in __CFRunLoopRun () #33 0x0000000180446e24 in _CFRunLoopRunSpecificWithOptions () #34 0x00000001924c19bc in GSEventRunModal () #35 0x00000001862217a8 in -[UIApplication _run] () #36 0x00000001862259d0 in UIApplicationMain () Same issues below. https://developer.apple.com/forums/thread/796799 https://developer.apple.com/forums/thread/796501 https://developer.apple.com/forums/thread/796874 https://developer.apple.com/forums/thread/796686
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Aug ’25