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.

Summary: Content scripts injected via manifest continue to receive and respond to chrome.tabs.sendMessage() calls even after the user has navigated away from the original page, causing messages intended for the current tab to be handled by zombie contexts from previous pages. Environment: Safari/iOS Version: 18.5 Extension Manifest: Version 3 Expected Behavior: When a user navigates from Page A to Page B: Page A's content script context should be destroyed. chrome.tabs.sendMessage(currentTabId, message) should only reach Page B's content script Only Page B should be able to respond to action button clicks (or other background to content messages). Actual Behavior: When navigating from Page A to Page B: Page A's content script context persists as a "zombie". chrome.tabs.sendMessage(currentTabId, message) reaches zombie context instead of the Page B's one. Hence, it looks like the extension is broken because the content script does not respond to the background messages. Details: Tab ids are properly recognized by both background and content script The problem does not always occur; it occurs on random occasions. It's quite easy to have it reproduced. It can be reproduced easier if user clicks ext icon during site loading (before it fully loaded), triggering ActionClick (ext icon click) event and then sending a msg upon it to the content script Regardless of whether the content script is injected into the tab using manifest.json, registerContentScripts, or executeScript, the problem is still there Once the problem occurs, e.g. user is on macys.com but zombie injected content script believes it's google.com (a previous page), even refreshing the tab doesnt change anything - zombie context is still there (thinking it's still google.com) . Changing a domain to something completely different one could help though. Then going back to macys.com could still lead to the described issue. A zombie content script does not have access to the page's console function and others. Example communication Sending following message from the background to the content script using chrome.tabs.sendMessage() { "tab": { "id": 155, "active": true, "url": "https://www.macys.com/", "title": "Macys.com" } } Results in the content-script zombie context response (the url is taken from the window.location.href) "message": { "type": "ActionClicked", "data": {} }, "response": { "data": { "windowUrl": "https://www.google.com/", "contentReached": true, "timestamp": "1,753,138,945,272", } } }

We operate a native iOS app that authenticates users via the system browser using OIDC against a 3rd party SaaS authentication broker, which then performs authentication against the individual customer IdPs using SAML within the browser session, and then completes the OIDC login between the broker and our application. Our application initiates the OIDC login using ASWebAuthenticationSession, using the broker’s library, against the broker, and at that point the authentication workflow is handled by the broker. At the beginning of the login session, the broker sets a session-identifying cookie for their domain, before redirecting the user to their company’s identity provider to authenticate, which then redirects the user back to the broker. Intermittently, Mobile Safari does not include that previously set cookie on the final communication with the broker, when being redirected from the IdP as the final step of the SAML portion of the login workflow. When the cookie is missing, the broker cannot correlate the authentication response to the original request and the login fails, even though the user successfully authenticated at their identity provider. The same user can sometimes find success after retrying on the same device minutes later, without any changes. When we first started diagnosing this issue, we were seeing about a 20% rate of these errors across all Mobile Safari logins, which we can identify fairly conclusively (from provider logs, based on their guidance) as being caused by the session cookie set in one request not being provided on the subsequent request to the same domain. Our authentication broker provider has indicated, based on their server logs, and logs from an affected device, that this behavior is caused by Mobile Safari’s Intelligent Tracking Protection (ITP) causing Mobile Safari to not send the login session cookie to the broker when handling the SAML redirect from the IdP back to them. Our authentication broker provider recommended that we switch the SAML Request binding setting from POST to Redirect in the SAML configurations against our customer IdPs, which reduced the rate of these errors to about 5% for most of our customers. However, we have at least one customer which is still seeing about a 20% rate in these errors for Mobile Safari logins after this change, and even a 5% error rate seems high. Our authentication broker has not been able to suggest any further remediation options, and has suggested we contact Apple for assistance. Our questions are: Is it reasonable to assume that ITP is causing this issue? Is there any way to confirm, conclusively, that ITP has caused a previously-set cookie to not be provided on a subsequent request to the same domain, i.e. via device logs? If so, are there any steps which can be taken to reduce or eliminate this error? Changes to how ASWebAuthenticationSession is invoked? Changes to the Authentication Broker which would reduce the chance of ITP being triggered? Changes to the Customer IdP configuration which would reduce the chance of ITP being triggered?

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

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); } };

We’re currently working on an OTT-based application where we integrate Google Ad Manager to serve video ads. As part of the ad experience, users often see a “Learn More” CTA (Call to Action) on these ads. As per our current requirement, when a user taps “Learn More” on an ad: • The link should open in Safari (i.e., an external browser) on iOS devices • The Safari browser should ideally open in portrait orientation, as the ad content and layout are optimised for portrait mode However, based on our understanding and technical constraints on iOS, it appears that: • Orientation control is restricted to the app’s own context. • Once Safari is launched via UIApplication.shared.open, we no longer have control over how it behaves in terms of orientation. • iOS system behaviour determines Safari’s orientation based on the device’s physical orientation and Safari’s own internal configuration. Could you please confirm if there’s any supported way (via SDK, deep link config, or otherwise) to enforce portrait orientation in Safari when opening such external URLs from within an iOS app? If this is not technically feasible, we would appreciate any best practices or alternatives you can suggest for ensuring a consistent user experience.

I'm building a progressive web app (PWA) and came to the conclusion that almost nobody knows that this feature exists - Add to Home Screen. Not many people even understand what a PWA is or that you can add it to the home screen. This feels unnatural compared to installing an app from a store. Why do we make it so hard for users? Could we not make this easier by having the ability to call this installation or show an install notification? Right now, when users visit a PWA on iOS, there's no way for developers to let them know they can install it. The "Add to Home Screen" option is tucked away in the Share menu, and most users never find it. I'd really like to be able to show them a friendly prompt. Comparing to other browsers, this is possible via the beforeinstallprompt event. This would make a huge difference for user experience. Right now the only way is to show iOS users a separate set of instructions with screenshots, which feels clunky compared to what's possible on other platforms. I'm curious - is there any reason why this hasn't been added to Safari yet? Other browsers have supported this for years now. Is there any progress being made on this, or is it being considered for the roadmap? It would be really helpful to know if this is something that will be worked on in the future. I know there's a lot on the roadmap, but this would really help developers create better installation experiences for our users. Thanks for considering this!

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?

Hello Apple Developer Community, I'm experiencing an issue with PDF link interaction in WKWebView that appears to be specific to iOS 26. Problem Description: I'm loading a PDF in WKWebView.The links may vary widely and are not necessarily DPF, so I need to load them using WKWebView. On iOS versions prior to 26, links within the PDF are clickable and work correctly. On iOS 26, the same links are not clickable (no response when tapped). Expected Behavior: PDF links should remain clickable and functional across all iOS versions. What I've Tried: Tested opening the PDF directly in Safari on iOS 26 - links still not clickable This suggests the issue might be related to changes in the system's PDF rendering engine Reproduction Steps: Load the PDF URL in WKWebView Navigate to page 12 Attempt to tap the link Environment: Test Devices: iPhone 15(26.0 ) / iPhone 16 Pro Max(18.0.1 ) Xcode: 16.2 Questions: Is this an intentional change in iOS 26's PDF handling or WKWebView? If so, is there a new API or configuration to restore link interactivity? Any guidance or suggestions would be greatly appreciated!

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.

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)); }]; }); }

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.

Hey Guys My PWA video playback and even youtube videos stopped working after updating iOS to 26.0.1. The video thumnails appear fine and if i try to play the video, it remains stuck. If i restart the phone, the video plays for a second in the PWA and then stops again and entire app gets stuck. Request apple team to fix this issue at the earliest. This is hampering all my iOS users who install the PWA on their device homescreen and use it as app. FYI strangely EVERYTHING WORKS FINE ON iOS SAFARI browser including videos playback If i open it as a web app. so this seems like a specific PWA issue on latest ios 26.0.1

Hello, I've got Smart App Banner set up on my website. However, I want to be able to measure the traffic coming from this banner to the app store / app (i.e. measure impressions/downloads). Apple documentation (https://aninterestingwebsite.com/help/app-store-connect/view-app-analytics/manage-campaigns/) says you can set up a campaign link and use it in the Smart Banner to track those who download / open the app store page using your smart banner (so that we can get attribution). However, there is no documentation at all in terms of how this should be added to the tag when implementing a Smart App Banner. I've tried so many different variations and none have tracked downloads. This includes a structure based on an example taken from WWDC from a few years back which also did not work. I would appreciate any help!

The issue of fixed elements with { bottom: 0 } moving up when scrolling still persists. It seems to be a general issue with the IOS 26 release. It affects other browser too. I tested on browsers such as Safari, Chrome, Firefox, Edge and Bravo. With the exception of Edge, all the others display the behavior. Device: iPhone 15 Pro IOS Version: 26.0.1

hi Testing on OS26 Public Beta 6. In Safari, if you enter x homepage and scroll, the tab bar sticks to the bottom and moves. Make the keyboard appear in the search window When scrolling down on the Safari homepage again, the issue of not being able to stick to the bottom appears. Is it because the liquid glass UI was applied this time? and safari bug? Please let me know if I'm missing anything

I’m observing an intermittent issue with a Safari Web Extension on macOS 15.7 (Safari 26.0.1). After installing the Safari extension from the App Store, it appears under Settings → Extensions, but the enable checkbox is often missing. Sometimes, after restarting Safari multiple times, the checkbox becomes visible. However, even when I manage to enable the extension, reopening Safari often hides the checkbox again. However, I don't see this issue in safari 26 with macOS 26 I’d like to know if this behavior is a known issue with Safari 26 or macOS 15.7? Any workaround available?

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'm a web developer of WebRTC based web app for video and audio calls. After updating to iOS 26.1 beta I noticed, that my app can't use microphone anymore. When I'm calling to getUserMedia with audio set to true, Safari returns error "No AVAudioSessionCaptureDevice device". Other WebRTC demo apps also can't access microphone on this firmware. And maybe it's connected somehow, but safari can't detect connected AirPods Pro 2 as an input device. So, this bug brakes any WebRTC app, that uses microphones.