I'm converting a Chrome Extension to a Safari Web Extension, I found it's not easy to get favicon of current tab/url natively. The tab object in Safari doesn't have favIconUrl. { 	"id": 121, 	"index": 6, 	"active": true, 	"width": 1324, 	"audible": false, 	"url": "https://github.com/", 	"mutedInfo": { 		"muted": false 	}, 	"windowId": 2, 	"title": "GitHub", 	"incognito": false, 	"pinned": false, 	"height": 935, 	"highlighted": true, 	"status": "complete" } 		 2. I didn't find Safari has similar thing like chrome://favicon 3. I found Safari's favicon caches in ~/Library/Safari/Favicon Cache/favicons but have no idea how to use them in Safari Web Extension.

Does webkit have a way to display a smart banner for a home screen web app similar to how a smart banner can be displayed for native apps? I recently noticed (10/23) that Twitter showed a smart banner encouraging Home Screen web app on my Mac running Sonoma. How is this done?

Hi there! I'm new to App Development and I'm running into the following error when playing audio on a website loaded through a WKWebView: 0x112000cc0 - ProcessAssertion::acquireSync Failed to acquire RBS assertion 'WebKit Media Playback' for process with PID=70.197, error: Error Domain=RBSServiceErrorDomain Code=1 "(originator doesn't have entitlement com.apple.runningboard.assertions.webkit AND originator doesn't have entitlement com.apple.multitasking.systemappassertions)" UserInfo={NSLocalizedFailureReason=(originator doesn't have entitlement com.apple.runningboard.assertions.webkit AND originator doesn't have entitlement com.apple.multitasking.systemappassertions)} Looking through this forum, it seems more people have this issue, yet no one has found a solution (or posted it...). The solutions that I did find (Background Modes capability, webView.configuration.allowsInlineMediaPlayback = true), did nothing. To make sure the issue had nothing to do with my own code, I created an empty project to reproduce the issue. I'm not sure on the best way to share it, but it's a small file (forgive me, I have no clue what it does, actually chatGPT made it for me. My real application is a WebApp wrapped with Capacitor, so it handles all the Swift stuff) import SwiftUI import WebKit struct WebView: UIViewRepresentable { let urlString: String func makeUIView(context: Context) -> WKWebView { let webView = WKWebView() webView.configuration.allowsInlineMediaPlayback = true webView.configuration.allowsAirPlayForMediaPlayback = true webView.navigationDelegate = context.coordinator return webView } func updateUIView(_ uiView: WKWebView, context: Context) { if let url = URL(string: urlString) { let request = URLRequest(url: url) uiView.load(request) } } func makeCoordinator() -> Coordinator { Coordinator(self) } class Coordinator: NSObject, WKNavigationDelegate { var parent: WebView init(_ parent: WebView) { self.parent = parent } func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) { print("Web page loading failed: \(error.localizedDescription)") } } } struct WebViewDemo: View { var body: some View { NavigationView { WebView(urlString: "https://www.w3schools.com/html/tryit.asp?filename=tryhtml5_audio_all") .navigationBarTitle("Web View") } } } struct WebView_Previews: PreviewProvider { static var previews: some View { WebViewDemo() } } Nothing special, right? When I build the app and navigate to a website that has an tag (https://www.w3schools.com/html/tryit.asp?filename=tryhtml5_audio_all). I still see the error when I play the audio. It plays nonetheless, but the error is there. I'm not at all interested in actually playing audio in the background/when the app is closed/suspended. I just want the error to go away! I've tried different iOS versions (14,15,16,17), but the problem persists. Anyone know what's happening?

Since updating to iOS v17.4.1 our safari extension no longer functions as it used to We are experiencing issues where our content script is not getting initialized, On devices running iOS 17.4.1, the content script included in our extension does not appear to run. There are no logs from the content script in the console, whereas on other versions and devices, it operates as expected. Our Extension relies con communication between the background and content scripts in order for us to render various popups to our users, based on our logs as of iOS 17.4.1 this communication is not successful, we can see messages being sent from the background script but as mentioned above nothing on the content script side. This behavior happens majority of the time and on random sites, sometimes opening the same site in a new tab would work but not always. There are also times where we would only receive our popups after opening the safari menu and interacting with our extension via this menu. Please assist with a way forward

I'm experiencing a Safari Web Extension issue where the non-persistant background script seems to crash after 30 seconds even when the content script is messaging it. Here is a minimal-reproducible example. When running in an emulator, the background script will stay responsive forever. However, when running on a physical device, the background script becomes non-responsive after 30 seconds of activity. It never becomes responsive again until I toggle the extensions enable/disable toggle, after which it stays active for 30 seconds and then crashes again.

I have a hybrid mobile app which loads web server screens in its iframe(which is under the WKWebView); an https request is initiated from the mobile app to the web server which returns the html page to be loaded in the iframe. The calls which are initiated from outside the iframe have cookies maintained in their requests, while the ones initiated from inside the iframe(web server page) loose the cookies and do not inherit them in IOS beta 18 while It worked fine in the previous IOS versions. Anybody has infos about this or similar cases?

Flutter web view- I am downloading assets from server and using that assets to create html file to load on web view. I downloaded them to the local document directory on the device. From there I can load the HTML files in a webview using the file:// schema, with the benefit that images, css etc. that are referenced in the HTML are loaded as well. This works fine in Android (simulator and real device) as well as in an iOS simulator. But on an iOS device the flutter webview fails to load assets , images & css files with a relative URL from local directory. This is strange as the iOS simulator should behave the same in that case (as it is not really a hardware related issue). Help me out from this issue.

Hi everyone, I’m working on an iOS app using WKWebView, and I have a specific use case involving cross-origin iframes and form autofill. I’m wondering if it’s possible to programmatically fill input elements, such as credit card numbers, within a cross-origin iframe loaded in a WKWebView. I understand that due to the Same-Origin Policy, direct DOM manipulation of cross-origin iframes is restricted. However, I’m curious if there are any methods or workarounds that might allow me to achieve this, specifically within the context of WKWebView. Thanks.

I am using two iPhone11 devices, having iOS v17.6.1 for automation testing using Seleniumv4.X-Appium v2.x. Today I updated the mac to Sequoia15 version which updated the XCode to v16. Just after this update, I could not able to run the previously running automation script. The console message is "org.openqa.selenium.SessionNotCreatedException: Could not start a new session. Response code 500. Message: Unable to launch WebDriverAgent. Original error: xcodebuild failed with code 70. This usually indicates an issue with the local Xcode setup or WebDriverAgent project configuration or the driver-to-platform version mismatch."

We have observed that blocking content using Safari web extension does not fetch few URLS within the #document (documentURLs) because the onBeforeRequest webextension API is currently not available in Safari iOS. But it works fine using the Content blocking extension. We have a list of URLs which we want to block from the website. Which extension would you suggest the Content blocking extension or the Safari web extension?

We are using manifest version 2, and currently some dynamic ads which come under the #document (documentURL) are not getting fetched and we are not able to block. is there an alternative for onBeginRequest in iOS Safari? How can we fetch the dynamic URLs otherwise?

Safari cannot open the page due to the error 'WebKit encountered an internal error.' We are using https://github.com/stleamist/BetterSafariView.git, and it was working fine before we updated to Xcode 16.

Is it possible to enable/disable the enabled flag before the extension is loaded? we want to have a button in our app which controls the availability of the content blocker ruleSet in declarative_net_request in manifest (version 2). "declarative_net_request": { "rule_resources": [ { "id": "ruleset_1", "enabled": true, "path": "ruleset_1.json" } ] },

Hi! We are having a hard time with the universal link, help is appreciated! Thanks in advance! The universal link doesn't work after installation for some time. A user has to wait for from 5 to a couple of hours after the app is installed on the device. This has also affected App reviewers since we need the universal link to work for successful login. Each submission will receive a rejection of we cannot login and it will be approved until we kindly ask them to try again. I believe the JSON is delivered to devices by Apple's CDN system and the fact that it works on most devices most of the time should imply that we have a valid apple-app-site-association setup. So I am really confused about the wait time, which is giving us trouble with app review and a bad user experience

It seems Safari 18's fetch() does not include credentials even credentials: include and safari extension has host_permissions for that domain. Is there anyone has this problem? I try to request in popup.js like this: const response = await fetch( url, { method: 'GET', mode: 'cors', credentials: 'include', referrerPolicy: 'no-referrer', } ); and it does not include the cookie from host_permissions. Those code worked in Safari 17 (macOS Sonoma).

Hi, I am having issue with WebAssembly not able to load wasm file on Safari web extension. It is showing CompileError: Refused to create a WebAssembly object because 'unsafe-eval' or 'wasm-unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src 'self' 'wasm-unsafe-eval'". It was working fine 2 month ago, my original CPS is "script-src 'self' 'unsafe-eval'". But now it is not accepting 'unsafe-eval', I also tried 'wasm-unsafe-eval' did not work. Is there any changes on Safari browser regarding the CSP for WebAssenbly? Please let me know what CPS value will work. Here is the example code on how I load the WebAssembly wasm file. fetch('test_wasm_lib.wasm') .then(response => { if (!response.ok) throw new Error('Network response was not ok'); return response.arrayBuffer(); }) .then(bytes => WebAssembly.instantiate(bytes)) .then(results => { // Use your WebAssembly instance here console.log('load wasm success') }) .catch(error => { console.error('Error loading WASM:', error); });

Hi everyone, I’m working on an app that uses WKWebView. Due to security concerns, our customers want the app to disable copy-paste functionality and similar options (such as Lookup and Share, allowing users to extract text from the app or save it as a file. I was able to disable copy-paste and remove UIMenu options like Lookup and Share. Everything worked fine until the iOS 18.1 beta, which introduced a new menu called Writing Tools (Apple Intelligence) that has its own copy and share buttons I've tried several ways to remove it Remove all UIMenu items using canPerformAction, and it works for all menus but Writing Tools, which still remains override func canPerformAction(_ action: Selector, withSender sender: Any?) -> Bool { return false } Remove it from UIMenuBuilder override func buildMenu(with builder: UIMenuBuilder) { builder.remove(menu: .lookup) builder.remove(menu: .share) } But unfortunately, UIMenuBuilder does not have an identifier for Writing Tools, and it seems like there are no API changes from Xcode 15 to Xcode 16 (https://developer.apple.com/documentation/uikit/uimenu/identifier) It seems like the only way to disable it through MDM configuration (key: allowWritingTools), but we don't use MDM https://developer.apple.com/documentation/devicemanagement/restrictions Environment iOS Version: iOS 18.1 beta4 Device: iPhone 15 Pro App platform: iOS Xcode version: 16.0 MacOS: 15.0 Thank you

Hi, there. I am trying to use ServiceWorker on iPad to retry a request that has a communication error. However, I am having trouble with the process being terminated after 70 seconds. Occurs at least on iPadOS 17.6.1 and 16.3. The following is the service worker code to reproduce the problem: self.addEventListener('fetch', (event) => { if (event.request.url.includes('test.html')) { event.respondWith(longRunFetch()); } }); async function longRunFetch(request) { await new Promise(resolve => setTimeout(resolve, 75000)); return new Response('Fetch completed'); } When this code is executed on an iPad and a request is made to test.html, the service worker stops after about 70 seconds. When it stops, it falls back to the network request and the contents of test.html are displayed. The service worker thread appears to be killed and is unavailable until the browser is restarted. If timeout is set to 65000, 'Fetch completed' is displayed as expected. Why is the process terminated in 70 seconds? Is there any way to continue processing beyond 70 seconds?

After updating Xcode to the latest version we observed that SFSafariViewController is not loading web pages on Xcode 16 Simulator with iOS 18, whenever it is presented the View Controller is empty (does not load any content) and the app freezes, but other screens that use WKWebView are working normally. Also, during tests on physical devices with iOS 18 it seems to work just fine, so it might be just a IDE version problem. Is anyone experiencing the same issue? If so, did anyone find a solution for it?

So recently Intune add support for controlling safari web extension enablement using the new ddm configuration added in Macos 15, but unfortunately I can't make it work no matter what I try. On the destination machine I see the that a user declaration for safari extension has been created, but there is not details on which extension they applied and it seems faulty (See attachment) I have 2 questions: Has anyone managed to make it work? Is there a way to test this declaration like I can do with Mobile config by manually load it to the machine? Thank you.