I'd like to know the install state of my iOS safari extension in the associated swift app. Is there any way to get this? As we have seen it is available for macOS here, is there anyway to know iOS Safari extension is enabled or not? Thanks

Hello, We’ve been using the CesiumJS WebGL library for several years, both on our website and within embedded WebViews in our iOS application. Since upgrading to iOS versions 18.2 and 18.3, we’ve started receiving numerous user complaints regarding application crashes on various iPad and iPhone models when loading CesiumJS. The crashes occur as soon as the 3D view initializes, and the error consistently reported is: "WebGL context lost" This issue appears to be a WebGL-related crash potentially triggered by GPU memory handling or allocation limits. However, we are not detecting any abnormal memory consumption prior to the crash, and the same setup works perfect on older iOS versions and on all Android devices and versions. Steps to Reproduce: Open: https://www.flightradar24.com/30.47,-94.84/8 Click on any aircraft icon on the map. In the aircraft details panel at the bottom, click on the “3D view” tab. On iOS 18.2 or 18.3, the page will crash shortly after initializing CesiumJS WebGL. Affected Devices: This issue is occurring across a wide range of devices, including: iPad 9th Generation iPad Pro (11-inch, 2nd Gen) iPhone SE (2020 and 2022) iPhone 11, 11 Pro iPhone XR iPhone Mini All of the above are running iOS 18.2 or 18.3. The problem does not occur on Android or previous iOS versions. Request: Has anyone else encountered similar issues with WebGL context loss after upgrading to iOS 18.2 or 18.3? Are there any known changes in memory limits or WebGL behavior in these recent iOS updates? We’d appreciate any insight or suggestions on workarounds or potential fixes. Thank you!

On iOS Devices with ProMotion (120HZ) if you animate Elements on your Page with animation-timeline you get Ghosting Effects. You can not see the Ghosting with a Simulator or on Screenshots, only on real Devices. To Reproduce I made a Minimal Example: https://codesandbox.io/p/sandbox/120hztest-xrwgtc When you scroll quickly on the Page with an iOS 120HZ Device (https://en.wikipedia.org/wiki/List_of_smartphones_with_a_high_refresh_rate_display) you will see ghosting on the Top of the right Element (animation-timeline) and no ghosting on the other animated Element. (I edited the Screenshot, to Illustrate how the Effect looks like, since it is only visible on the real Display)

在 iOS 平台使用 WKWebView 通过file://协议加载本地 HTML 文件时，存储在localStorage中的数据会在 App 后台切换、进程重启后偶尔丢失；但相同代码在安卓 / 鸿蒙平台无此问题。 现在的文档 仅明确了「默认数据存储（defaultDataStore）可将网站数据持久化到磁盘，非持久化存储（nonPersistent）仅存内存」的基础规则； 未提及「file://协议内容即使使用默认持久化存储，也会被归为临时内存存储」这一关键场景限制； 仅在WKURLSchemeHandler关联说明中隐含「自定义 URL 协议可处理 WebKit 原生不支持的 URL 方案」，但未直接关联file://的存储问题。 我找不到如何处理这个问题的官方文档，仅仅有其他的博客说需要增加http/https加载就没有这个问题。 请提供给我官方文档或者官方回复 关于出现这种file:/加载html出现问题的处理办法

Hi, we have PWA for which we´ve built a wrapper using PWA Builder tool and we are experiencing an issue with apple sign in. When we try to redirect the user to "https://appleid.apple.com/auth/authorize?...params...", a bottom sheet login prompt appears and only once the user signs in using the prompt he is then redirected to the url where he needs to sign in again and then we get the callback. We want to get rid of that bottom sheet prompt. The code we´ve tried: ` iosButton.addEventListener('click', function () { window.location.href = "https://appleid.apple.com/auth/authorize?client_id=xxxxx&redirect_uri=xxxxx&response_type=code%20id_token&scope=name%20email&response_mode=form_post"; });` The alternative code we´ve tried for which it seems that nothing happens, we only see the "Started" alert, we´ve confirmed that there is no other error : ` <script src="https://appleid.cdn-apple.com/appleauth/static/jsapi/appleid/1/en_US/appleid.auth.js"></script> <script> (function initAppleSignIn() { try { window.AppleID.auth.init({ clientId: "{{ env('APPLE_WEB_CLIENT_ID') }}", scope: "name email", redirectURI: window.location.origin +"/auth/apple/callback", usePopup: true }); } catch (e) { console.warn('Apple Sign-In init skipped:', e); } })(); function appleButtonClicked() { alert("Started"); try { const res = await window.AppleID.auth.signIn(); } catch (err) { alert("Got error"); } alert("Got here"); } </script>

The order nor -webkit-order properties of a child element of a flex parent dosen't work in Safari 18.3. Works correctly in FireFox and Chrome.

How to allocate the width of each column when customizing the rendering of HTML tables on iOS with limited screen width

I am developing an SSO Extension so that I can have SSO with Keycloak across applications. OIDC/OAuth2 works very well. But I am struggling with SAML. It works, but it seems that the form submission is always triggered twice. I use decisionHandler(.cancel) to stop the form submission and redirect it to the browser. I still get the form submitted both by the extension and by the browser. At some point I tried to allow the form submission in the Extension so that I get the redirect with the response to the browser. It still triggered another submission. Does anyone experience this issue?

Ever since the iOS and iPadOS 26.2 beta I can’t open Safari at all. Safari tries to open but crashes and goes back to my home screen. I’ve restored my devices and restarted everything and the same issue occurs. I didn’t have this problem on the beta 26.1 but this whole thing started on 26.2.

We have written a PAC script that blocklists certain domains and whitelists others. We went to Settings > Network > Wi-Fi (the network we are using), then clicked on Details, and under Proxies, we added the PAC file URL in the Automatic Proxy Configuration section. We tried hosting the PAC file both on localhost and on a separate HTTP server. After saving the settings, we tested several URLs. The blocking and allowing behavior works correctly in all browsers except Safari. Below is the PAC script we are using for your reference. The script works as expected in browsers other than Safari. This is how the PAC script URL looks: http://localhost:31290/proxy.pac function FindProxyForURL(url, host) { var blacklist = new Set(["facebook.com", "deepseek.com"]); var b_list = [...blacklist]; for (let i = 0; i < b_list.length; i++) { let ele = b_list[i] + "*"; if (shExpMatch(host, ele) || shExpMatch(url, ele)) { return "PROXY localhost:8086"; } } if (isIPBlocked(whitelist_subnet, hostIP)) { return "PROXY localhost:8087"; } if (isIPBlocked(blacklist_subnet, hostIP)) { return "PROXY localhost:8086"; } return "PROXY localhost:8080"; }

Hi there, I have a popular open source app called Foqos. What I'm finding in iOS 26 (might even effect older versions) is that when using the webcontent api within Managed settings as the following: store.webContent.blockedByFilter = .specific(domains) It doesn't work on Safari, but does work on third party applications like chrome, firefox, etc. But when using the all and exception enum like the following store.webContent.blockedByFilter = .all(except: domains) This does work on Safari This is pretty inconsistent behavior of the API and should be fixed to match the documentation. Documentation does not mention anything about Safari limitations Again source code is open: https://github.com/awaseem/foqos You can run the app yourself and find the same issues. Is anyone else experiencing this?

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.

Our current iOS application utilizes WKWebView to display a web application. We've observed intermittent deletion of non-expired 1st-party persistent cookies within this web application, leading to session drops. Here are our environment details and specific questions: Environment: App Build: Built with Xcode 16.2. WebView Class: WKWebView. Cookie Type: 1st-Party Persistent Cookie (Explicit expiration set, not a session cookie). Domain Configuration: The content server and the cookie-issuing server are the same (same IP address, same eTLD+1). The Cookie is set via the Set-Cookie HTTP Header on the server side. Questions: Automatic Deletion Policy: Are there any scenarios (e.g., related to iOS system behavior, Safari policies, or Intelligent Tracking Prevention (ITP)) where iOS or Safari might automatically delete non-expired 1st-party persistent cookies used by WKWebView? Deletion Conditions: If the answer to Q1 is Yes, under what specific conditions (e.g., memory pressure, inactivity, storage limits, specific ITP criteria) does this cookie deletion occur, and does the behavior differ significantly across various iOS versions? OS Update Impact: Are there any known specifications or documented cases where an iOS version update itself triggers the mass deletion of existing cookies stored in the WKWebsiteDataStore? Mitigation Strategy: If this automatic deletion is a known behavior, what mitigation strategies are officially recommended to ensure the persistence of essential 1st-party authentication cookies (e.g., manual synchronization with WKHTTPCookieStore or Keychain/UserDefaults)? Official Documentation: If the answer to Q1 is Yes, please provide URLs to any official Apple documentation or technical notes that detail the specifications or behavior of 1st-party persistent cookie deletion within WKWebView.

Whenever I make a safari view controller on XCode26 Beta 5, there appears to be a blurry white overlay overtop the controller. This worked fine in XCode26 Beta 2, with no code differences. Anyone have any suggestions?

The new WebView implementation in *OS 26 versions is a very valuable addition to the SwiftUI toolset. I was experimenting with it and was wondering how to implement a Pull To Refresh. While this was easily achievable with the "old" WKWebView I was not able to find an API to implement, for example, a page reload when the user uses a pull to refresh gesture. I tried to attach to a .refreshable(_:) modifier to the WebView but without success. Is there an official API for that or should maybe .refreshable(_:) already work and it's just a bug or is it simply not yet supported? Here is a minimal example I was trying but didn't succeed: struct ContentView: View { @State private var page = WebPage() var body: some View { NavigationStack { WebView(page) .refreshable { page.reload() } } } } Any help is much appreciated. Thank you!

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!

Subject: iOS 26 WKWebView: Remote Pages Become Unresponsive After Loading Local HTML Files Description We're experiencing a critical issue with WKWebView in a React Native 0.64.3 application where remote web pages become completely unresponsive after loading local HTML files in iOS 26. It works well before iOS26. Environment: React Native 0.64.3 iOS 26.0 Xcode 26.0.1 Using custom WKWebView implementations in Native modules Problem Details App loads local HTML files using loadFileURL:allowingReadAccessToURL: Later, when loading remote pages via loadRequest:, the remote pages load successfully but become unresponsive to user interactions This occurs even when using different WKWebView instances The issue is reproducible 100% of the time once a local file has been loaded Restarting the app and loading remote pages directly works fine Code Example: // Loading local file (works fine) [self.webView loadFileURL:localFileURL allowingReadAccessToURL:accessURL]; // Later, loading remote page (loads but becomes unresponsive) NSURLRequest *request = [NSURLRequest requestWithURL:remoteURL]; [self.webView loadRequest:request]; What We've Tried: Using different WKWebView instances for local vs remote content Comprehensive cleanup in dealloc (removing all user scripts and message handlers) Loading blank HTML before switching to remote content Using shared WKProcessPool (understanding its limitations in iOS 15+) Ensuring proper decisionHandler management in navigation delegates Resetting WKWebView configuration settings Clearing cookies and cache between loads Using loadFileRequest:allowingReadAccessToURL: instead of loadFileURL: Key Observations: The remote page renders correctly and network requests complete No JavaScript errors in console The view hierarchy appears normal in Debug View Hierarchy Touch events seem to be delivered but not processed by the web content Questions: Has Apple introduced new security restrictions in iOS 26 that affect the transition from file:// URLs to http:// URLs? Are there specific WKWebView configuration changes required for React Native applications in iOS 26? Could this be related to the React Native bridge or JavaScript context persistence? Any insights or workarounds would be greatly appreciated, as this is blocking our iOS 26 compatibility.

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?

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. { &#9;"id": 121, &#9;"index": 6, &#9;"active": true, &#9;"width": 1324, &#9;"audible": false, &#9;"url": "https://github.com/", &#9;"mutedInfo": { &#9;&#9;"muted": false &#9;}, &#9;"windowId": 2, &#9;"title": "GitHub", &#9;"incognito": false, &#9;"pinned": false, &#9;"height": 935, &#9;"highlighted": true, &#9;"status": "complete" } &#9;&#9; 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.

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.