navigator.permissions.query -> permissionStatus.onchange is Supposed to listen to the event of a change in permissions in the browser settings. This works for all browsers, but in Safari for iOS and MacOS this seems to be broken in the currently recent versions 17.x Example: navigator.permissions.query({ name: 'notifications' }).then((permissionStatus) => { permissions = permissionStatus.state; // this value gets set correctly permissionStatus.onchange = () => { // This will not get executed when permissions have been changed // within the safari settings app, or iOS Settings for PWA or Safari }; }); Can someone from Apple's Webkit Team please comment on this? Thank you. T.

I'm developing a web extension for Safari on iOS using MV3. The extension is working fine in Chrome, but in Safari I experience some seemingly random issues. I would like to debug it, but here is my problem. I have my iPhone connected via cable to Mac, and it works fine with XCode, so I assume this part is OK. I open Safari or Safari Tech Preview (doesn't matter) on my Mac, developers options are enabled, and in the Develop menu, under my iPhone section, there are things I can debug. There is an entry "[Ext name] - Extension Service Worker" but when I click it, it's empty. Web inspector pops up, but there are no network requests, no logs, nothing. I know the extension is working, because I can stream log to my HTTP server, but I don't see them here at all. I can use console to trigger commands like chrome.storage.local.get(null, console.log) and it shows my local store, so why I don't see any logs? Also, the background script is not visible in the Sources tab, just one weird request: navigator.serviceWorker.register('safari-web-extension://E3449EA7-EC25-4696-8E6C-[ID HERE]/background.js'); </script> Any ideas what went wrong? The entire team of 4 people has the same issue and we can't move forward because of that. Also, the Develop => Service workers or any other menu section doesn't show my service worker. Logs for websites running on my phone are visible and in general web inspector for them works fine.

According to our crash analytics, our application crashes while a context menu is opened on a web view. This crash takes place on iOS 26+ only. The messages states that a web view is no longer inside active window hierarchy, however we doesn't modify web view instance's parent anyhow while the context menu is opened. Can you please help with a fix or at least workaround for this issue? What's your opinion for bug localization (application or framework)? NSInternalInconsistencyException UIPreviewTarget requires that the container view is in a window, but it is not. (container: <WKTargetedPreviewContainer: 0x14b442840; name=Context Menu Hint Preview Container>) userInfo: { NSAssertFile = "UITargetedPreview.m"; NSAssertLine = 64; } Crashed: CrBrowserMain 0 CoreFoundation __exceptionPreprocess + 164 1 libobjc.A.dylib objc_exception_throw + 88 2 Foundation -[NSMutableDictionary(NSMutableDictionary) initWithContentsOfFile:] + 0 3 UIKitCore -[UIPreviewTarget initWithContainer:center:transform:] + 660 4 UIKitCore (Missing) 5 UIKitCore (Missing) 6 UIKitCore (Missing) 7 UIKitCore (Missing) 8 UIKitCore (Missing) 9 UIKitCore -[_UIContextMenuPresentation present] + 56 10 UIKitCore +[UIView(UIViewAnimationWithBlocksPrivate) _modifyAnimationsWithPreferredFrameRateRange:updateReason:animations:] + 168 11 UIKitCore (Missing) 12 UIKitCore (Missing) 13 UIKitCore (Missing) 14 UIKitCore (Missing) 15 UIKitCore +[UIView(UIViewAnimationWithBlocks) _setupAnimationWithDuration:delay:view:options:factory:animations:start:animationStateGenerator:completion:] + 516 16 UIKitCore (Missing) 17 UIKitCore (Missing) 18 UIKitCore +[UIView __animateUsingSpringWithDampingRatio:response:interactive:initialDampingRatio:initialResponse:dampingRatioSmoothing:responseSmoothing:targetSmoothing:projectionDeceleration:retargetImpulse:animations:completion:] + 192 19 UIKitCore -[_UIRapidClickPresentationAssistant _animateUsingFluidSpringWithType:animations:completion:] + 316 20 UIKitCore -[_UIRapidClickPresentationAssistant _performPresentationAnimationsFromViewController:] + 516 21 UIKitCore -[_UIRapidClickPresentationAssistant presentFromSourcePreview:lifecycleCompletion:] + 400 22 UIKitCore __55-[_UIClickPresentationInteraction _performPresentation]_block_invoke_3 + 48 23 UIKitCore +[UIViewController _performWithoutDeferringTransitionsAllowingAnimation:actions:] + 140 24 UIKitCore __55-[_UIClickPresentationInteraction _performPresentation]_block_invoke_2 + 144 25 UIKitCore -[_UIClickPresentationInteraction _performPresentation] + 836 26 UIKitCore postPreviewTransition_block_invoke_2 + 104 27 UIKitCore handleEvent + 256 28 UIKitCore -[_UIClickPresentationInteraction _driverClickedUp] + 48 29 UIKitCore -[_UIClickPresentationInteraction clickDriver:didPerformEvent:] + 400 30 UIKitCore stateMachineSpec_block_invoke_5 + 48 31 UIKitCore handleEvent + 144 32 UIKitCore -[_UILongPressClickInteractionDriver _handleGestureRecognizer:] + 140 33 UIKitCore -[UIGestureRecognizerTarget _sendActionWithGestureRecognizer:] + 128 34 UIKitCore _UIGestureRecognizerSendTargetActions + 268 35 UIKitCore _UIGestureRecognizerSendActions + 268 36 UIKitCore -[UIGestureRecognizer _updateGestureForActiveEvents] + 308 37 UIKitCore -[UIGestureRecognizer gestureNode:didUpdatePhase:] + 300 38 Gestures (Missing) 39 Gestures (Missing) 40 Gestures (Missing) 41 Gestures (Missing) 42 UIKitCore -[UIGestureEnvironment _updateForEvent:window:] + 528 43 UIKitCore -[UIWindow sendEvent:] + 2924 44 UIKitCore -[UIApplication sendEvent:] + 396

Hi, after upgrading MacOS (MB Air M1 Version 26.2 (25C56)) & Safari (Version 26.2 (21623.1.14.11.9)) to latest versions, we are experiencing a new bug occurring with our web extension (Click & Read) on local storage writing and getting this error : Invalid call to browser.storage.local.set(). Disk I/O error. This doesn't happen on other browsers (chromium, Firefox). export const setLocalStorage = async (value: object) => { try { await browser.storage.local.set(value); } catch (error) { console.error("[Click & Read] Error setting local storage", error); } };

Our app encountered a new crash since beta5(23A5308g) released last week,and it seems the crash is not solved yet in beta6(23A5318c).The crash stack below `-[UIView _backing_setPosition:] -[UIView setCenter:] -[_UIEditMenuContentPresentation _displayPreparedMenu:titleView:reason:didDismissMenu:configuration:] ___54-[_UIEditMenuContentPresentation _displayMenu:reason:]_block_invoke -[UIEditMenuInteraction _editMenuPresentation:preparedMenuForDisplay:completion:] -[_UIEditMenuContentPresentation _displayMenu:reason:] -[_UIEditMenuContentPresentation displayMenu:configuration:] ___58-[UIEditMenuInteraction presentEditMenuWithConfiguration:]_block_invoke ___80-[UIEditMenuInteraction _prepareMenuAtLocation:configuration:completionHandler:]_block_invoke ___109-[UITextContextMenuInteraction _editMenuInteraction:menuForConfiguration:suggestedActions:completionHandler:]_block_invoke ___107-[UITextContextMenuInteraction _querySelectionCommandsForConfiguration:suggestedActions:completionHandler:]_block_invoke WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>::operator()(WebKit::DocumentEditingContext&&) WTF::Detail::CallableWrapper<IPC::Connection::makeAsyncReplyCompletionHandler<Messages::WebPage::RequestDocumentEditingContext, WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)> >(WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>&&, WTF::ThreadLikeAssertion)::{lambda(IPC::Connection*, IPC::Decoder*)#1}, void, IPC::Connection*, IPC::Decoder*>::call(IPC::Connection*, IPC::Decoder*) WTF::Detail::CallableWrapper<WebKit::AuxiliaryProcessProxy::sendMessage(WTF::UniqueRefIPC::Encoder&&, WTF::OptionSetIPC::SendOption, std::__1::optionalIPC::ConnectionAsyncReplyHandler, WebKit::AuxiliaryProcessProxy::ShouldStartProcessThrottlerActivity)::$_1, void, IPC::Connection*, IPC::Decoder*>::call(IPC::Connection*, IPC::Decoder*) IPC::Connection::dispatchMessage(WTF::UniqueRefIPC::Decoder) IPC::Connection::dispatchIncomingMessages() WTF::RunLoop::performWork() WTF::RunLoop::performWork(void*) _CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION ___CFRunLoopDoSource0 ___CFRunLoopDoSources0 ___CFRunLoopRun __CFRunLoopRunSpecificWithOptions _GSEventRunModal -[UIApplication _run] _UIApplicationMain main main.m start

Summary Our app’s WKWebView triggers a WebContent / GPU process crash on iPhone 15 running iOS 26.4. The same flow works on iPad running iOS 26.4. Environment Failing: iPhone 15, iOS 26.4 Working: iPad, iOS 26.4 Web stack: WKWebView / WebKit (Safari & Web) What we see The WKWebView web process terminates; logs show WebProcess and GPU process exits, followed by RBS assertion failures and (in one WebContent process) repeated containermanagerd XPC invalidation. Expected Web content loads and remains stable like on iPad 26.4. Actual Web process crashes; page goes blank or WebView recovers only after reload. Logs 0x10715d518 - [pageProxyID=14, webPageID=15, PID=3629] WebPageProxy::dispatchProcessDidTerminate: reason=Crash\ 0x10715ce18 - [pageProxyID=22, webPageID=23, PID=3629] WebPageProxy::dispatchProcessDidTerminate: reason=Crash\ 0x1480f01e0 - GPUProcessProxy::didClose:\ 0x1480f01e0 - GPUProcessProxy::gpuProcessExited: reason=Crash\ 0x14808c640 - [PID=3633] WebProcessProxy::gpuProcessExited: reason=Crash\ 0x14808cb80 - [PID=3634] WebProcessProxy::gpuProcessExited: reason=Crash\ WebContent[3633] 0x10d07ebc0 - GPUProcessConnection::didClose\ Error acquiring assertion: <Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process 3630 does not exist" UserInfo=\{NSLocalizedFailureReason=Specified target process 3630 does not exist\}>\ 0x148128600 - ProcessAssertion::acquireSync Failed to acquire RBS assertion 'XPCConnectionTerminationWatchdog' for process with PID=3630, error: (null)\ WebContent[3634] XPC connection to containermanagerd invalidated. Retry attempt 1 of 6\ WebContent[3634] XPC connection to containermanagerd invalidated. Retry attempt 2 of 6\ WebContent[3634] XPC connection to containermanagerd invalidated. Retry attempt 3 of 6\ WebContent[3634] XPC connection to containermanagerd invalidated. Retry attempt 4 of 6\ WebContent[3634] XPC connection to containermanagerd invalidated. Retry attempt 5 of 6\ WebContent[3634] XPC connection to containermanagerd invalidated. Retry attempt 6 of 6\ WebContent[3634] _container_query_get_result_at_index: error = 2\uc0\u8594 (51) XPC_INVALID_REPLY;\ WebContent[3634] container_system_group_path_for_identifier: error = ((container_error_t)51) XPC_INVALID_REPLY\ WebContent[3634] 0x11107ebc0 - GPUProcessConnection::didClose\

Our team has implemented a video player using the HTML5 tag, but we have identified an issue with loading media files. While Safari on iOS 18.0 downloads each TS file listed in the m3u8 playlist correctly, on iOS 18.4 and 18.5, a single TS file is downloaded repeatedly. Our statistics indicate that approximately six requests are made per second for the same TS file. Is this intended behavior? If not, are there any known workaround or solutions? If this issue is due to the OS or browser, are there any plans to address it in iOS 18.6 or a future release? Could you advise on the proper channel to submit a bug report for this issue? Similar issues have been reported in the past with WKWebView. The previous thread is here: https://developer.apple.com/forums/thread/784134

When CHIPS was introduced in 18.4 it worked well, however on 18.5 it does not appear to work. There do not appear to be release notes about this in 18.5, so can someone provide definitive if this is a defect that will be fixed, or have they already been deprecated?

We are experiencing an issue after Xcode 26.0 to load local javascript files to WKWebView to render our own design. it used to work well, however after Xcode 26.0, when [self.webView loadFileURL:fileURL allowingReadAccessToURL:accessURL]; it returns [PID=1514] WebProcessProxy::hasAssumedReadAccessToURL(3198190): no access self.webRootPath = [[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:CHAT_VIEW_WEB_ROOT]; NSFileManager *fileManager = [NSFileManager defaultManager]; NSError *error = nil; if (! [fileManager fileExistsAtPath:self.webRootPath]){ [fileManager createDirectoryAtPath:self.webRootPath withIntermediateDirectories:NO attributes:nil error:&error]; } NSURL *accessURL = [NSURL fileURLWithPath:self.webRootPath]; Not sure how to assign access permission to WKWebView. Any help much appreciated.

I'm building a Capacitor iOS app with a plain <video> element playing an MP4 file inline. I want Picture-in-Picture to activate automatically when the user goes home — swipe up from the bottom edge of the screen (on an iPhone with Face ID) or press the Home button (on an iPhone with a Home button). Fullscreen → background works perfectly — iOS automatically enters Picture-in-Picture. But I need this to work from inline playback without requiring the user to enter fullscreen first. Setup <video id="video" playsinline autopictureinpicture controls src="http://podcasts.apple.com/resources/462787156.mp4"> </video> // AppDelegate.swift let audioSession = AVAudioSession.sharedInstance() try? audioSession.setCategory(.playback, mode: .moviePlayback) try? audioSession.setActive(true) UIBackgroundModes: audio in Info.plist allowsPictureInPictureMediaPlayback is true (Apple default) iOS 26.3.1, WKWebView via Capacitor What I've tried 1. autopictureinpicture attribute <video playsinline autopictureinpicture ...> WKWebView doesn't honor this attribute from inline playback. It only works when transitioning from fullscreen. 2. requestPictureInPicture() on visibilitychange document.addEventListener('visibilitychange', () => { if (document.visibilityState === 'hidden' && !video.paused) { video.requestPictureInPicture(); } }); Result: Fails with "not triggered by user activation". The visibilitychange event doesn't count as a user gesture. 3. webkitSetPresentationMode('picture-in-picture') on visibilitychange document.addEventListener('visibilitychange', () => { if (document.visibilityState === 'hidden' && !video.paused) { video.webkitSetPresentationMode('picture-in-picture'); } }); Result: No error thrown. The webkitpresentationmodechanged event fires with value picture-in-picture. But the PIP window never actually appears. The API silently accepts the call but nothing renders. 4. await play() then webkitSetPresentationMode document.addEventListener('visibilitychange', async () => { if (document.visibilityState === 'hidden') { await video.play(); video.webkitSetPresentationMode('picture-in-picture'); } }); Result: play() succeeds (audio resumes in background), but PIP still doesn't open. 5. Auto-resume on system pause + PIP on visibilitychange iOS fires pause before visibilitychange when backgrounding. I tried resuming in the pause handler, then requesting PIP in visibilitychange: video.addEventListener('pause', () => { if (document.visibilityState === 'hidden') { video.play(); // auto-resume } }); document.addEventListener('visibilitychange', () => { if (document.visibilityState === 'hidden' && !video.paused) { video.webkitSetPresentationMode('picture-in-picture'); } }); Result: Audio resumes successfully, but PIP still doesn't open. 6. Native JS eval from applicationDidEnterBackground func applicationDidEnterBackground(_ application: UIApplication) { webView?.evaluateJavaScript( "document.querySelector('video').requestPictureInPicture()" ) } Result: Same failure — no user activation context. Observations The event order on background is: pause → visibility: hidden webkitSetPresentationMode reports success (event fires, no error) but the PIP window never renders requestPictureInPicture() consistently requires user activation, even from native JS eval Audio can be resumed in background via play(), but PIP is a separate gate Fullscreen → background automatically enters Picture-in-Picture, confirming the WKWebView PIP infrastructure is functional Question Is there any way to programmatically enter PIP from inline playback when a WKWebView app goes to background? Or is this intentionally restricted by WebKit to fullscreen-only transitions? Any pointers appreciated. Thanks!

overflow-x: clip; will also apply clipping on the Y-axis. The correct implementation of this should only affect the X-axis. This is correctly implemented in all browsers except for Safari

Observed versions: Reproduced on Tahoe / Safari 26 and iOS 26 Safari. Not reproduced on v18 Safari. Not reproduced in Chrome with the same reduced test setup. We are seeing a Safari-only rendering issue affecting an ad creative inside an iframe on both desktop Safari and iOS Safari. What we observe: The issue is reproducible in Safari on OS X and iOS v26. We do not reproduce it in Chrome with the same test setup. We can reproduce it in a minimal test case, outside our site app code. The issue appears tied to the rendered iframe document/layout, not our outer page layout. The problematic rendered structure inside the iframe looks like this: <div class="GoogleActiveViewElement" style="display:inline"> <ins class="dcmads" style="display:inline-block;width:320px;height:50px"> <script src="https://www.googletagservices.com/dcm/dcmads.js"></script> </ins> </div> Here is a simplified, local-reproducible version for testing: <div class="GoogleActiveViewInnerContainer" style="left:0px; top:0px; width:100%; height:100%; position:fixed; pointer-events:none; z-index:-9999;"></div> <div class="GoogleActiveViewElement" style="display:inline"> <ins class="dcmads" style="display:inline-block;width:320px;height:50px"> <script> document.write( '<a target="_blank" href="#"><img ' + 'src="data:image/svg+xml;utf8,' + encodeURIComponent( '<svg xmlns="http://www.w3.org/2000/svg" width="320" height="50">' + '<rect width="320" height="50" fill="#ffd8d8"/>' + '<text x="160" y="30" text-anchor="middle" font-family="Arial" font-size="14" fill="#222">' + 'img placeholder' + '</text>' + '</svg>' ) + '" ' + ' alt="Advertisement" border="0" width="320" height="50" style="display:block" /></a>' ); </script> </ins> </div> In Safari, this produces extra vertical spacing / cutoff above the ad. In the test code you will only notice an added top spacing, but when rendered in a live ad, the bottom gets cut off. A few details that may help: If we manually change the inner ins.dcmads from display:inline-block to display:inline, or adding overflow:hidden, the spacing issue goes away. If the loader script is moved outside the ins during manual experimentation, the issue also goes away. This makes it look like a Safari layout/rendering issue involving an inline wrapper around an inline-block ad container during script-driven rendering. Questions: Is this a known Safari/WebKit layout issue involving inline + inline-block content in iframe documents? Has there been any recent Safari/WebKit change that could affect this rendering path? Is there a preferred reduced repro format for reporting layout issues like this?

Hello, After upgrading to macOS 26.2, I’ve noticed a significant performance regression when calling evaluateJavaScript in an iOS App running on Mac (WKWebView, Swift project). Observed behavior On macOS 26.2, the callback of evaluateJavaScript takes around 3 seconds to return. This happens not only for: evaluateJavaScript("navigator.userAgent") but also for simple or even empty scripts, for example: evaluateJavaScript("") On previous macOS versions, the same calls typically returned in ~200 ms. Additional testing I created a new, empty Objective-C project with a WKWebView and tested the same evaluateJavaScript calls. In the Objective-C project, the callback still returns in ~200 ms, even on macOS 26.2. Question Is this a known issue or regression related to: iOS Apps on Mac, Swift + WKWebView, or behavioral changes in evaluateJavaScript on macOS 26.2? Any information about known issues, internal changes, or recommended workarounds would be greatly appreciated. Thank you. Test Code Swift class ViewController: UIViewController { private var tmpWebView: WKWebView? override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view. setupUserAgent() } func setupUserAgent() { let t1 = CACurrentMediaTime() tmpWebView = WKWebView(frame: .zero) tmpWebView?.isInspectable = true tmpWebView?.evaluateJavaScript("navigator.userAgent") { [weak self] result, error in let t2 = CACurrentMediaTime() print("[getUserAgent] \(t2 - t1)s") self?.tmpWebView = nil } } } Test Code Objective-C - (void)scene:(UIScene *)scene willConnectToSession:(UISceneSession *)session options:(UISceneConnectionOptions *)connectionOptions { NSTimeInterval startTime = [[NSDate date] timeIntervalSince1970]; WKWebView *webView = [[WKWebView alloc] init]; dispatch_async(dispatch_get_main_queue(), ^{ [webView evaluateJavaScript:@"navigator.userAgent" completionHandler:^(id result, NSError *error) { NSTimeInterval endTime = [[NSDate date] timeIntervalSince1970]; NSLog(@"[getUserAgent]: %.2f s", (endTime - startTime)); }]; }); }

This is my first post, so please forgive me if it is to the wrong area. I've been using Tahoe for a few days and, overall, it's very stable. But the one thing that has bothered me to no end is Safari's new behavior with respect to its header (Address bar, Favorite bookmarks bar, tab bar) background color. The web content of the active tab seems to affect everything - and oftentimes makes things completely unreadable - at least in "Dark" mode. For instance, if a web page uses a white background, the Favorites bookmark labels are the same color as the bookmark background, so reading the labels is simply impossible. At other times, they're just very difficult to read. Similarly, it is almost always impossible to tell which tab is the active one - my only workaround is to try 100% brightness....or to just guess. When Apple previously experimented with letting content bleed through to the top, there was a setting for stopping it - but I don't see such a setting anymore. Do you you know of any way to stop this effect?

Hi Apple engineers! We are making an iOS browser and are planing to deliver a feature that allows enterprise customers to use a MAM key to set a PAC file for proxy. It's designed to support unmanaged device so the MDM based solutions like 'Global HTTP Proxy MDM payload' or 'Per-App VPN' simply don't work. After doing some research we found that with WKWebView, the only framework allowed on iOS for web browsing, there's no API for programmatically setting proxy. The closes API is the WKURLSchemeHandler, but it's for data management not network request interception, in other word it can not be used to handle HTTP/HTTPS request well. When we go from the web-view level to the app level, it seems there's no API to let an app set proxy for itself at an app-level, the closest API is Per-App VPN but as mentioned above, Per-App VPN is only available for managed device so we can't use that as well. Eventually we go to the system level, and try to use Network Extension, but there's still obstacles. It seems Network Extension doesn't directly provide a way to write system proxy. In order to archive that, we may have to use Packet Tunnel Provider in destination IP mode and create a local VPN server to loop back the network traffic and do the proxy stuff in that server. In other word, the custom VPN protocol is 'forward directly without encryption'. This approach looks viable as we see some of the network analysis tools use this approach, but still I'd like to ask is this against App Store Review Guidelines? If the above approach with Network Extension is not against App Store Review Guidelines, I have a further question that, what is the NEProxySettings of NETunnelNetworkSettings for? Is it the proxy which proxies the VPN traffic (in order to hide source IP from VPN provider) or it is the proxy to use after network traffic goes into the virtual private network? If none of the above is considered recommended, what is the recommended way to programmatically set proxy on WKWebView on an unmanaged device (regardless of where the proxy runs, web-view/app/system)?

I want to print the content of a WKWebView. I've done some searching, and many people have struggled with this over the years. Some claimed success, but their solutions don't work for me. One person created images for each pages and printed that, but then if you were to print to PDF, you'd get a PDF containing images rather than text. If I just call the printView(_:)) method of the view, I get blank pages. With the following more elaborate code, I get a partial printout, 11 out of what should be about 13 pages. let info = NSPrintInfo.shared info.topMargin = 72.0; info.bottomMargin = 72.0; info.leftMargin = 72.0; info.rightMargin = 72.0; info.isVerticallyCentered = false; info.isHorizontallyCentered = false; info.horizontalPagination = .fit; info.verticalPagination = .automatic; let printOp = webView!.printOperation( with: info ) printOp.canSpawnSeparateThread = true printOp.view?.frame = NSMakeRect( 0, 0, info.paperSize.width, info.paperSize.height ) printOp.runModal(for: webView.window!, delegate: self, didRun: nil, contextInfo: nil ) When I run the above under the debugger, I see console messages saying CGContextClipToRect: invalid context 0x0. Once the print dialog appears, if I touch (but not change) the selected printer, then the page count changes to the correct value.

Device: iPhone 15pro, ios26.0 (23A 341) IOS version: 26.0 (23A 341) When using position: sticky; bottom: 0, the div is expected to stick to the bottom of the viewport when the browser toolbar hides while scrolling. However, it stops at the height where the toolbar was, instead of moving down with the disappearing toolbar. In the image below, the red-bordered navigation shows the situation where it does not stick to the bottom. i

Hi everyone, I'm exploring the new app icon appearance options (Clear, Dark, Tinted) for Progressive Web Apps (PWAs) on iOS26, iPadOS26, and macOS26. Currently, PWA icons don't seem to render well with these new appearances, particularly in Clear and Tinted modes, resulting in very very poor visual quality. You can hardly see anything. Has support for these icon appearances been fully implemented for PWAs? If so, could someone point me to the relevant Apple Developer documentation or provide guidance on how to configure PWA icons to support Clear, Dark, and Tinted appearances? I've searched the Apple Developer Forums, Stack Overflow, and Reddit but haven't found clear information on this topic.A possible solution is a png file with transparent areas, but if the pattern is dark, nothing will be visible in dark mode. Any insights or resources would be greatly appreciated. Thanks! (plz don't give up on PWA😭) Reference: https://developer.apple.com/forums/thread/761615 https://stackoverflow.com/questions/78780916/is-there-a-way-to-provide-light-dark-and-tinted-variants-of-apple-touch-icon https://developer.apple.com/library/archive/documentation/AppleApplications/Reference/SafariWebContent/ConfiguringWebApplications/ConfiguringWebApplications.html

I don't think the issue is specific iOS 18. We have a web application that runs with IIS Authentication of Windows and Anonymous. Initially the app opens and the user clicks a button and triggers the "401 Challenge" via ASP.NET. The browser presents the Active Directory login, user enters credentials, clicks Sign In, and the browser hangs (may actually be negotiating something). After a few minutes the user is logged into the application. We have done a number of google searches/AI to try to determine what to change and there is no clear solution. Is there anything else to try? This problem is not seen in Chrome on iOS or on a Windows machine. Strangely it is also not seen using BrowserStack with one of their "real" devices. We have other apps that run with just Windows Authorization and this problem is not observed.

There does not appear to be any way to use or create iCloud passkeys with a Safari Web Extension, either using the navigator.credentials API in an extension origin webpage such as the popover, or using the AuthenticationServices framework in the SafariWebExtensionHandler. I've setup an associated domain for my plugin, and I know it works for the host application. But I get errors trying to do so in the web extension target. createCredentialRegistrationRequests results in the following error: Domain=com.apple.AuthenticationServices.AuthorizationError Code=1004 "Application with identifier <ID> is not associated with domain <RPID> The other problem, assuming the entitlement works correctly for the web extension, is that there is no NSWindow to use as the presentation target from the SafariWebExtensionHandler. Trying to use the navigator.credentials.create JS API (which is the preferred method, frankly, in a web extension) results in the following error: NotAllowedError: The request is not allowed by the user agent or the platform in the current context, possibly because the user denied permission. Chrome has a great solution for this that I believe should be adopted by Safari. If an extension has host permissions for a relying party it wants to claim, or if it has an associated domain entitlement for it, webauthn operations should be allowed.