Currently I am struggling to find a way to read the status of Safari Web Extension from settings as I can not find any public api listed for iOS as it is already available for macOS.

Reproducibility 100% on iOS 15.4 and iOS 16.6 Zero crash on iOS 18.6 Xcode 26.1 Steps to Reproduce Xcode 26.1 → New iOS App Replace ViewController.swift with the 20-line code below Run on real device • iPhone XR iOS 15.4 • iPhone 13 iOS 16.6 Tap the link → breakpoint in decidePolicyFor lldb → po navigationAction.sourceFrame Actual Result (lldb) po navigationAction.sourceFrame nil Swift declaration lies: public var sourceFrame: WKFrameInfo { get } // non-optional → Instant EXC_BREAKPOINT libswiftFoundation.dylib`URLRequest._unconditionallyBridgeFromObjectiveC Objective-C tells the truth: po [(WKNavigationAction *)navigationAction fixedSourceFrame] nil iOS 18.6 → same code prints a valid WKFrameInfo, no crash. Expected sourceFrame must be declared WKFrameInfo? in Swift or at least documented “can be nil on iOS 15–16”. Impact Every WKWebView app that touches sourceFrame on iOS 15.4 & 16.6 ships with a latent crash. Production Workaround @implementation WKNavigationAction (Safe) (WKFrameInfo *)fixedSourceFrame { return self.sourceFrame ? self.sourceFrame : nil; } @end Minimal Test (copy-paste) import UIKit import WebKit class ViewController: UIViewController, WKNavigationDelegate { lazy var web = WKWebView(frame: view.bounds) override func viewDidLoad() { super.viewDidLoad() web.navigationDelegate = self view.addSubview(web) web.load(URLRequest(url: URL(string: "https://www.apple.com")!)) } func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, preferences: WKWebpagePreferences, decisionHandler: @escaping (WKNavigationActionPolicy, WKWebpagePreferences)->Void) { print(navigationAction.sourceFrame) // ← crashes on 15.4 & 16.6 decisionHandler(.allow, preferences) } }

When creating a passkey with the PRF extension on an iPhone 15 Pro Max using Safari on iOS 18.4.1, PublicKeyCredential.getClientExtensionResults reports true; however there is no hmac-secret extension in the authenticator data as required by WebAuthn Level 3.

Hello i would like to report a bug on iOS 26 beta. The problem is on the epic games website you see when I hit sign in it is just blank but the epic games store is just fine i would like this to be fixed on iOS 26 beta 3 thank you.

Trying to implement my own forward/back buttons for the new SwiftUI WebView and reading the documentation I’m totally lost. What’s the recommended way of implementing forward/back behavior with this component?

Hello, Recently, there is an issue in my service that after typing korean at input element, first click event is not working. But i knew that other services are also having same problem. It happens only on Safari. Could you guys check this issue? Thank you.

Hi, My app is using JavascriptCore to run the business logic in a javascript environment. We are randomly seeing crashes when users move the app back to the foreground. These crashes are reported by Firebase (I am attaching an example). I also tried to find them in Organizer, but the stacktraces don't match and I am not sure if they are pointing to the same error (I attach one just in case). I was trying to investigate a little bit about this, but I could find any explanation about what pas_reallocation_did_fail would mean. Here is our implementation: -(void) enqueueCallback:(JSValue *)callback withArguments:(NSArray *)args exclusive:(BOOL)exclusive { [self enqueueBlock:^{ @autoreleasepool { [callback callWithArguments:args]; } } exclusive:exclusive]; } Basically, every JS block is enqueued and then run by a dedicated thread specific to our JSContext. Can I get some help? Thanks in advance! Crashlytics.txt 2024-08-30_10-00-01.2572_-0400-f757f8306eda9679ec1b2ff90fbc66c4eb1fbee7.crash

Hello WebKit Team, I’m writing to ask if iOS provides a native way to intercept AJAX (XMLHttpRequest or fetch) calls inside WKWebView. On Android, this is handled via: shouldInterceptRequest(WebView view, WebResourceRequest request) but iOS currently seems to have no equivalent. We’ve tried: WKURLSchemeHandler → works only for custom schemes URLProtocol with WKProcessPool → unreliable for AJAX in WebView JavaScript injection → partial and unofficial Could you please clarify: Is there a recommended native approach to intercept AJAX requests? If not supported, is it planned for future releases? Any official workaround or guidance? This is critical for debugging, analytics, and compliance in hybrid apps.

myCode is here // titleScript = "document.querySelector('#\(rawValue) span')?.textContent" guard let titleResult = try? await webView.evaluateJavaScript(type.titleScript), let title = titleResult as? String else { return } this code has error Thread 1: Swift runtime failure: Unexpectedly found nil while implicitly unwrapping an Optional value but edit Code like this It is works Successful do { ... let titleResult = try await webView.evaluateJavaScript(type.titleScript) let title = titleResult as? String ... } catch { LogManager.log(level: .error, self, #function, error, "title is Invalid : \(type.titleScript)") continue } I don't know why guard let _ = try? is Fail

Hi all , I have 2 questions regaridng App Clips. 1 - can we directly invoke App Clips from a HTML Appclip experience url ? We want to directly take users to the App Clips flow without showing App Clips cards or banner. 2 - Does Apple have a plan to support other modern mobile browsers such as Chrome , Edge and Firefox ?

Hi, How are we supposed to handle links with target="_blank" in the new SwiftUI WebView? I don't see anything in WebPage.NavigationDeciding or elsewhere that corresponds to the delegate method used for WKWebView.

Thread 0 Crashed: 0 WebKit 0x00000001a1b6bf1c WKMouseDeviceObserver.connectedDeviceCount.setter + 68 (WKMouseDeviceObserver.swift:0) 1 WebKit 0x00000001a1b6bea4 @objc WKMouseDeviceObserver.connectedDeviceCount.setter + 152 2 WebKit 0x00000001a1b6d95c closure #2 in WKMouseDeviceObserver.start() + 80 (WKMouseDeviceObserver.swift:0) 3 WebKit 0x00000001a1b4e3e9 <deduplicated_symbol> + 1 4 WebKit 0x00000001a1b4e139 <deduplicated_symbol> + 1 5 WebKit 0x00000001a1b4e769 <deduplicated_symbol> + 1 6 libswift_Concurrency.dylib 0x0000000196037cdd completeTaskWithClosure(swift::AsyncContext*, swift::SwiftError*) + 1 (Task.cpp:546)

Hello, I'm experiencing an issue where WKWebView consistently fails to load a specific URL on the iOS 18.4 simulator (Xcode 16.3). The error is as follows: Error Domain=NSURLErrorDomain Code=-1005 "The network connection was lost." UserInfo={ _kCFStreamErrorCodeKey=-4, _kCFStreamErrorDomainKey=4, NSUnderlyingError=Error Domain=kCFErrorDomainCFNetwork Code=-1005, NSErrorFailingURLKey=[REDACTED] } Key Observations: This URL fails consistently only on the iOS 18.4 simulator. The same URL loads without issue in iOS 18.3 and 18.2 simulators. The backend is serving a valid HTTPS certificate chain, and the server appears to be presenting it properly. The same application appears to work on a real iPhone running 18.4. Certificate Chain for the Failing URL Leaf: WR3 (Valid: Mar 17, 2025 – Jun 15, 2025) Intermediate 1: GTS Root R1 (Valid: Dec 13, 2023 – Feb 20, 2029) Intermediate 2: GlobalSign Root CA (Valid: Jun 19, 2020 – Jan 28, 2028) Other URLs Work Fine in iOS 18.4 Simulator WKWebView successfully loads the following URLs with similar or more complex certificate chains: https://google.com → WR2, GTS Root R1, GlobalSign Root CA https://amazon.com → DigiCert Global CA G2, DigiCert Global Root G2, VeriSign G5 https://stackoverflow.com → E5, ISRG Root X1 https://shopify.com → GlobalSign Root CA, GTS Root R4, WE1 This suggests the issue may not be with general network or certificate trust but instead something specific about how iOS 18.4 handles this domain or certificate configuration in the simulator. Any insights on how to solve this would be greatly appreciated.

Hello - we have a Mac application that uses a browser extension and the web extension JS APIs to communicate with Safari. As of macOS 15.4 / Safari 18.4 the tab OnAttached and tab onDetached events are no longer received. After some testing we verified that the events were working properly as of macOS 15.3 / Safari 18.3 but appear to have been broken in macOS 15.4. Note a similar issue was reported previously for Safari 17.6 and was fixed in macOS 15.0 (FB14324177). We have made a TestFlight version of our app (Tabby) available to simplify debugging via https://testflight.apple.com/join/Va8Zdv9d. To reproduce the issue: Install the Tabby TestFlight build on macOS 15.4 or 15.4.1 Open Safari, go to Safari settings and select the Extensions tab Enable the Tabby extension and grant permissions to all windows all the time Open a Safari window with at least 3 tabs Note the open window and tabs displayed in Tabby In Safari, perform a tab detach by dragging a tab out of the window Expected behavior Within Safari the detached tab should now be in it’s own window, and via the onDetached event Tabby should update to show the tab in it’s own window AND removed from the original window. Observed Safari fails to send the onDetached event and Tabby will continue to display the detached tab in its original window in addition to the new window. You can also use the repro steps above to observe the onDetached event being received or not by Tabby in the Safari developer console. The same steps but re-attaching the tab to the original window can be used to observe the onAttached event being received or not. We’ve attached two screen recordings to the Feedback ID below, one showing the events working on macOS 15.3, and one showing the events failing to be received on macOS 15.4.1. Note it also fails on macOS 15.4. FEEDBACK ID: FB17367977

Our iOS app uses React Native Webview (based on top of WKWebView) to display content. This webview stays in memory throughtout the app's lifecycle. We are observing a high number of webview content process terminations - around 15% of our sessions. (https://developer.apple.com/documentation/webkit/wknavigationdelegate/webviewwebcontentprocessdidterminate(_:)) What could be the reasons for it? Is there a way to know for sure? Is the 15% of sessions number something that other apps also experience, or should this be lower? Thanks!

Hello. I have a project that loads a page using jquery 3.6.3 in WKWebView. When I try this on iOS developer beta 4, WKWebView malfunctions and the page does not load properly. If I remove jquery, the page loads. Even if I update jquery to the latest version, the problem remains the same. This problem did not occur until developer beta 3. The log is as follows. 0x12107c170 - [PID=994] WebProcessProxy::didClose: (web process 0 crash) 0x12107c170 - [PID=994] WebProcessProxy::processDidTerminateOrFailedToLaunch: reason=Crash Error acquiring assertion: <Error Domain=RBSAssertionErrorDomain Code=2 "Specified target process 994 does not exist" UserInfo={NSLocalizedFailureReason=Specified target process 994 does not exist}> 0x121138300 - ProcessAssertion::acquireSync Failed to acquire RBS assertion 'XPCConnectionTerminationWatchdog' for process with PID=994, error: (null) 0x132e00018 - [pageProxyID=9, webPageID=10, PID=994] WebPageProxy::processDidTerminate: (pid 994), reason=Crash 0x132e00018 - [pageProxyID=9, webPageID=10, PID=994] WebPageProxy::dispatchProcessDidTerminate: reason=Crash Failed to terminate process: Error Domain=com.apple.extensionKit.errorDomain Code=18 "(null)" UserInfo={NSUnderlyingError=0x13357de30 {Error Domain=RBSRequestErrorDomain Code=3 "No such process found" UserInfo={NSLocalizedFailureReason=No such process found}}} Failed to terminate process: Error Domain=com.apple.extensionKit.errorDomain Code=18 "(null)" UserInfo={NSUnderlyingError=0x13357f390 {Error Domain=RBSRequestErrorDomain Code=3 "No such process found" UserInfo={NSLocalizedFailureReason=No such process found}}} Failed to terminate process: Error Domain=com.apple.extensionKit.errorDomain Code=18 "(null)" UserInfo={NSUnderlyingError=0x13357d770 {Error Domain=RBSRequestErrorDomain Code=3 "No such process found" UserInfo={NSLocalizedFailureReason=No such process found}}}

I recently updated my iPhone 12 to iOS 26. It seems there is a bug rendering Safari unable to "add to home screen" any website. Clicking the button displays a blank modal with Add button greyed out.

I'm looking for answer or documentation on gatekeeper and launching a MacOS app via a url scheme/custom protocol. Our application is delivered via a zip file downloaded from the web. We utilize a url scheme. The act of extracting the app from the zip registers the url scheme with the OS. From previous research/testing we found we had to break the gatekeeper lock (have the user move the app from the downloaded location) to ensure that the url is honored on first launch of the application. To ensure user compliance, we added a check to make sure that the lock has been removed by looking at the quarantine attribute. This flow is not ideal. I am looking for alternatives and was previously under the impression that if we were to move to a DMG then that would provide the user a better user experience for moving it. However, now that I am getting around to looking into it, I am seeing some implied statements that this is not the case and that the quarantine bit will just be moved from the DMG to the app. Questions: Does a DMG allow the app to be launched via custom protocol without prior launch or movement? With a notarized app, will the custom protocol work on a subsequent launch, even without prior movement?

If the Safari Technology Preview window is located on an external monitor with DisplayLink and the computer goes to sleep (screen saver), when it returns, it closes with an error. If the window is located on another monitor that is connected by USB, it does not close. Equipo: Macbook Pro M4 Pro SO: MacOS Sequoia 15.6.1 Safari Technology Preview: Release 227 (preview version work fine) DisplayLink Manager: 13.0.1 (build 46)

Hi, I'm using a webview in Swift, where I load an html file locally. Basically I have an angular project built and loaded directly into my app bundle. The webview requires the use of the camera. I request permissions via and javascript, the pop-up appears, I accept the permissions and the app works correctly. Only that after a certain number of seconds, the permissions are requested again. It's as if the webview doesn't cache the accepted permissions. Is this normal behavior?