This is my first time to post on this forum. If there are something we didn't notice, please tell me. Thanks. Background We're using canvas to provide a web component to marketing. https://demo.mescius.jp/spreadjs/BenchmarkSample/ Problem Recently we have met an issue from customer. He is using iPad 10th to access the web component but when he tries to scroll it and it's very slow on iPad 10th. His iPad OS version is 17.7 and this issue also can be reproduced on our iPad 10th with iPad OS 18.0.1. But if we use iPad 9th with iPad OS 17.7 and 18.0.1, things are fine and there isn't any performance issue. We developer took some time investigating and found it's because of iPad 10th's safari takes longer time to paint each frame. On iPad 9th, it needs nearly 10ms to paint each frame. But on iPad 10, it needs nearly 70ms to paint each frame. Also we can provide simple code for you to check the different. We tried to simulate the repaint when user is scrolling. You can see on iPad 9th, it will be 2~3ms but on iPad 10th, it will be more than 10ms for each frame. test-ipad10.html It has been happening on iPad 10th only with iPad OS 17.6/17.7/18.0. This will be a big problem for us because it means on the iPad 10th (the latest iPad, non Pro or Air), it can't be used. Question Is there anyone knowing similar issue with this one? And do you know how to solve it on iPad 10?

I have a Safari extension which allows the user to load their own homepage upon opening a new tab. The extension works by retrieving the homepage URL from UserDefaults and then redirecting to it using window.location.replace. In iOS 18, if the homepage is unable to be loaded due to, for example the user having no internet connection, Safari will go into an rapid loading loop, which eventually stops after a while. This is unlike iOS 17, where trying to reproduce the same scenario will end up with a Safari error page, which should be the expected behaviour. In short, instead of Safari going into an infinite loading loop, it should display a Safari error page like iOS 17 does. As this issue is only happening on iOS 18, I am almost certain it's an iOS bug and would appreciate if this can be fixed as soon as possible. I have created a Feedback Assistant report with ID FB15853821, which contains a sysdiagnose file from my iPhone 16 Pro, as well as two videos, one from my iPhone 16 Pro with iOS 18.2 beta 3 and the other video showing a comparison between iOS 18 and 17. Both videos first show the extension functioning correctly with an active internet connection, but when I disable my internet, the iOS 18 Safari goes into an infinite loop. Here are the steps to reproduce the issue: Download the Homepage for Safari app from the App Store: https://apps.apple.com/gb/app/homepage-for-safari/id6481118559 Enter any valid homepage URL, such as https://apple.com and tap Save Go to Settings -> Apps -> Safari -> Extensions -> Homepage and enable the extension Make sure Open New Tabs is set to “Homepage” Turn off both WiFi and cellular data and attempt to open a new tab in Safari Please note that this also happens with iOS 18.2 beta 4.

Hello everyone, I'm working on an app that uses WKWebView. My app uses a custom menu and we disable the default menu by overriding with: WKWebAction.canPerformAction() However, with the new iOS 18.2 release, I am no longer able to override the "Copy Link with Highlight" option that pops up when highlighting a selection as can be seen from the screenshot: Has anyone found a work around/bypass for this? Environment iOS Version: iOS 18.2 Device: iPhone 13 Pro App platform: iOS Xcode version: 16.1 MacOS: 14.5

Hello, I'm using Safari 18.2 on Sonoma 14.6.1. I was using the Developer Tools to do a Local Request Override in the Source tab for a CSS file that had a changing query string. I thought I had a good regular expression to catch all variants, but apparently it was too generic and possibly wrong, and made both Source and Network tabs no longer work in my Safari. The regular expression I entered for the Local Request Override was: //build/style.css(?.*)?$ Now my dev tools is broken to the extent that the Source and Network tabs no longer work. The slide-out panel on Source that shows Breakpoints, LocalOverrides, etc no longer shows. The toggle for it does, but does nothing now. UI in general looks a little wack on both tabs. So, since I can't turn off the Local Request Override, I've been trying to locate where Safari may have stored it to manually delete it. Not having a lot of luck on that front. It seems to me that Safari was unable to escape my regular expression correctly and it then causes additional issue. Just a guess though. Any advice or help in getting Safari Source & Network working again / manual removal of the LocalOverride would be greatly appreciated. I'm fluent in OSX and Linux, but grep was not much help surfacing anything that worked. Thanks in Advance, possibly a Safari bug as well.

Is ServiceWorker supported on WKWebView? As per Mozilla Developer Network(MDN Web) docs[1] its not supported, but our research shows that ServiceWorker becomes available for a domain in WKWebView 1) if the domain is allowlisted in app-bound domains[2] or 2) if app is registered as default browser(this can not be considered for our app as its not a browser). How to enable ServiceWorker on WKWebView? Is adding domain as app-bound domain the right/only way to enable ServiceWorker on WKWebView? We didn't find any official documentation about this. Can WebView get ServiceWorker support by default without enabling app bound domains since that is not an option for our app? Our app needs to support more than 10 domains. Powerful APIs such as JavaScript injection, cookie manipulation, event handlers are by default available to all domains/WebView instances even if App doesn't enable app-bound domains. Is it possible to do same for ServiceWorker? If ServiceWorker can not be supported by default then can Apple provide a feature by which ServiceWorker will be enabled in App for all the domains? Apple enforces maximum of 10 app-bound domains. Is it possible to remove this limit and provide a way to dynamically add to this list at the time of a request? [1] https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker#browser_compatibility [2] https://webkit.org/blog/10882/app-bound-domains/

Hi, I'm here to Report a Problem with the IOS 18.3 UPDATE. So, when i Download a file, any file. The Download Progress has no problems, but when the download complete, Nothing happens it just keeps the blue line of the download, and then I can’t open that file…this only happened to me when i downloaded the IOS 18.3… hope it'll be fixed ASAP. Bye!

Safari 18.0.1 on macOS 15.01 doesn't support the Passkey PRF extension during cross-device WebAuthn authentication when using QR code scanning, while it works correctly with iCloud passkeys. Steps to Reproduce: Clone and setup: git clone https://github.com/quocle108/passkey-prf-test yarn yarn start Test iCloud Passkey Flow: Open http://localhost:3000 in Safari Open DevTools (Cmd+Option+I) Click "Register" Choose "Passkey on iCloud" Expected console output: PRF supported: true Test Cross-Device Flow: Click "Register" Choose "Phone/Tablet" Scan QR with mobile device Expected: PRF supported: true PRF extension should be supported in cross-device flow, matching iCloud passkey behavior. Actual: PRF supported: false Cross-device flow returns empty extension results. Verify in Chrome Repeat steps 2-3 in Chrome Both flows return proper PRF extension results: PRF supported: true Test Environment: Browser: Safari 18.1.1 , Chrome 131.0.6778.70 OS: macOS 15.01 Mobile: iOS 18.x / Galaxy Note9 Android 10 Test repo: https://github.com/quocle108/passkey-prf-test

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.

I can open an app (e.g. tiktok) from a website of mine by using the deeplink “tiktok://open”, if the app is installed on my iphone. What's the deeplink to launch TestFlight? Thanks in advance

TLDR: I’m searching for a possibility to allow the usage of passkeys and hardware keys for any website in a wkwebview INFO: The browser is macOS ONLY Hi, I couldn’t really find documentation or forums posts on how to implement Webauthn for signin or hardware security keys for a second factor. Or rather where those events are triggered to be handled. In Safari you have that popover, that lets you either authenticate through Passwords or with a security key. When I visit webauthn.io for testing and click either register or authenticate I get Told not to present authorization sheet: Error Domain=com.apple.AuthenticationServicesCore.AuthorizationError Code=1 "(null)" ASAuthorizationController credential request failed with error: Error Domain=com.apple.AuthenticationServices.AuthorizationError Code=1004 "(null)" If I add func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping @MainActor (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) and func webView(_ webView: WKWebView, authenticationChallenge challenge: URLAuthenticationChallenge, shouldAllowDeprecatedTLS decisionHandler: @escaping @MainActor (Bool) -> Void) it doesn’t seem to change anything. I found something about the ASWebAuthenticationSessionWebBrowserSupported entitlement, but by my understanding this is used so a browser can get opened upon some other app calling a ASWebAuthenticationSession. Has anyone some guidance for me? I feel like webauthn and yubikey support are important security measures for our users. https://codeberg.org/miakoring/Amethyst/src/branch/main/Amethyst/Shared/ViewComponents/WebKit/WebViewModel.swift is the code for my webviewmodel. Delegates are in the Delecate folder https://codeberg.org/miakoring/Amethyst/src/branch/main/Amethyst/Shared/ViewComponents/WebKit

A DNR rule with lower priority is being applied before a DNR rule of higher priority on Safari. Specifically, a low-priority DNR block rule that matches a request is being applied before a high-priority DNR redirect rule that matches the same request, preventing the redirect from occurring. The only way to get the high-priority redirect rule to occur is to remove the DNR block rule. This does not occur on other browsers. I have already submitted a Feedback Assistant report about this bug: FB16535579 How to reproduce: Create/install a web extension on Safari with the declarativeNetRequest and declarativeNetRequestWithHostAccess permissions Open the Web Extension Background Content console and add a redirect rule with a high priority number. For example: await chrome.declarativeNetRequest.updateDynamicRules({addRules: [ {id: 5000, condition: {urlFilter: "||www.google-analytics.com*/ga.js", resourceTypes: ["script"], domainType: "thirdParty"}, priority: 80, action: {type: "redirect", redirect: {url: “http://www.apple.com/”}}} ]}) Add a block rule of lower priority for the same urlFilter: await chrome.declarativeNetRequest.updateDynamicRules({addRules: [ {id: 5001, condition: {urlFilter: "||www.google-analytics.com^", domainType: "thirdParty"}, priority: 1, action: {type: "block"}} ]}) Visit https://efforg.github.io/privacybadger-test-fixtures/html/ga_surrogate.html Check the network tab and see that neither a request to Google Analytics nor apple.com appear. This means that the request to Google Analytics was blocked instead of being / before being redirected Remove the block rule: await chrome.declarativeNetRequest.updateDynamicRules({removeRuleIds: [5001]}) Reload https://efforg.github.io/privacybadger-test-fixtures/html/ga_surrogate.html. Check the network tab and confirm that there is a request to apple.com, showing that the redirect rule is only applied if the lower-priority block rule is removed. The priority of the DNR rules should handle this without having to remove a DNR rule. I have confirmed that the incorrect application of DNR rule priority happens on other top level domains, with other urlFilters, and with other redirect URLs. I confirmed that this is happening while I’ve granted my extension permissions on all websites.

Hi Team, We are trying to upload a file or an image using the component WKWebView. How we can do it? Should we need to use another approach? Do you have any suggestion or any demo project? Thanks in advance!

Hi all, With version 18.4 beta, I have a problem with the display of webviews in the app. In particular, the app of my bank has webviews inside it, and as they are not loading, I am unable to access it. Can you help me? Thank you.

I’m encountering an issue with a Safari extension bundled with our main application (F-Secure). The extension is not appearing consistently in Safari settings on a customer’s iPad running iOS 18.3. Below are the details of the issue: Issue Description The Safari extension is bundled with the main app (F-Secure). After installing the app, the extension should automatically appear in Settings > Safari > Extensions, where the user can enable it. On the customer’s iPad, the extension is missing from the Safari settings. It briefly appeared once but then disappeared again.

Hello, my application experiences crashes related to JavaScriptCore in iOS 17 and 18. I would like to consult about potential causes, to determine whether it is a bug in JavaScriptCore or an issue with my code implementation. First, the crash stack always includes the call to JSC::MarkedBlock::aboutToMarkSlow(unsigned int). In the iOS 17 version, the crash occurs on this line, typically JSC::MarkedBlock::aboutToMarkSlow(unsigned int) + 88. In iOS 18 and later, the stack crashes atJSC::MarkedBlock::dumpInfoAndCrashForInvalidHandle(WTF::AbstractLocker&, JSC::HeapCell*). I checked the source code of JavaScriptCore for both iOS 17.6 and iOS 18.2 and observed modifications in the implementation of aboutToMarkSlow. My question is under what circumstances could this crash occur? crash.log I have attached a crash log encountered in iOS 18, hoping you can provide more effective information for problem diagnosis, especially since there are specific details worth noting near the crash registers. INVALID HANDLE: MarkedBlock = 0x141158000; heapCell = 0x14115bfa0; type = 0 INVALID HANDLE: found 24 0s at beginning of block INVALID HANDLE: block in another VM: 1, block in another VM: 1; other VM is 0x1324b6000 Moreover, in iOS 18.4, due to the implementation of dumpInfoAndCrashForInvalidHandleV2, the message has changed to: INVALID HANDLE 587: markedBlock=0x303518000; heapCell=0x303518fe0; cellFirst8Bytes=0; subspaceHash=0; contiguousZeros=0; totalzeros=0; blockVM=0x0; actualVM=0x0; isBlockVMValid=0; isBlockInSet=0; isBlockInDir=0; foundInBlockVM=0; INVALID HANDLE 606: markedBlock=0x303518000; heapCell=0x303518fe0; cellFirst8Bytes=0; subspaceHash=0; contiguousZeros=16384; totalZeros=16384; blockVM=0x0; actualVM=0x0; isBlockVMValid=0; isBlockInSet=0; isBlockInDir=0; foundInBlockVM=0; INVALID HANDLE 615: markedBlock=0x303518000; heapCell=0x303518fe0; cellFirst8Bytes=0; subspaceHash=0; contiguousZeros=16384; totalZeros=16384; blockVM=0x0; actualVM=0x0; isBlockVMValid=0; isBlockInSet=1; isBlockInDir=1; foundInBlockVM=0; (Further INVALID HANDLE messages follow the same format) I hope this provides you with more information.

Hello Apple Developer Team, I would love to see iCloud Keychain Autofill and Touch ID support extended to Chromium-based browsers on macOS (such as Ecosia, Brave, or Vivaldi). Currently, Safari allows autofill of passwords using Touch ID, but when using other browsers, I have to manually copy-paste credentials from Keychain Access, which is time-consuming. Would it be possible for Apple to provide an API or framework that allows non-WebKit browsers to integrate iCloud Keychain autofill while keeping security intact? This feature would make macOS more convenient for users who prefer alternative browsers while keeping security standards high. Thanks in advance for considering this! Best regards, Kilian

Hi, I am trying to find a unix timestamp from a safari bookmark. I have been able to open the Plist file but I am not sure how to find the timestamp. Any help would be great!

Who can help me, I am running into a WebKit crash on ios 17 and I cannot reproduce it in the debug environment. Crashes happen in these iOS version：17.6.1, 17.5.1, 17.7.5, 17.4, 17.7, 17.4.1, 17.7.3, 17.6 WebKit IPC::Connection::cancelReply<Messages::WebPage::PerformDragControllerAction, WebKit::WebPageProxy::performDragControllerAction(WebKit::DragControllerAction, WebCore::DragData&, std::__1::optional<WebCore::ProcessQualified<WTF::ObjectIdentifierGeneric<WebCore::FrameIdentifierType, WTF::ObjectIdentifierMainThreadAccessTraits> > > const&)::$_26>(WebKit::WebPageProxy::performDragControllerAction(WebKit::DragControllerAction, WebCore::DragData&, std::__1::optional<WebCore::ProcessQualified<WTF::ObjectIdentifierGeneric<WebCore::FrameIdentifierType, WTF::ObjectIdentifierMainThreadAccessTraits> > > const&)::$_26&&) (in WebKit) WebKit WTF::Detail::CallableWrapper<WebKit::AuxiliaryProcessProxy::sendMessage(WTF::UniqueRef<IPC::Encoder>&&, WTF::OptionSet<IPC::SendOption>, std::__1::optional<IPC::ConnectionAsyncReplyHandler>, WebKit::AuxiliaryProcessProxy::ShouldStartProcessThrottlerActivity)::$_1, void, IPC::Decoder*>::call(IPC::Decoder*) (in WebKit) WebKit IPC::Connection::cancelAsyncReplyHandlers() (in WebKit) WebKit IPC::Connection::invalidate() (in WebKit) WebKit WebKit::AuxiliaryProcessProxy::shutDownProcess() (in WebKit) WebKit WebKit::WebProcessProxy::shutDown() (in WebKit) WebKit WebKit::WebProcessProxy::processDidTerminateOrFailedToLaunch(WebKit::ProcessTerminationReason) (in WebKit) WebKit WebKit::WebProcessProxy::didClose(IPC::Connection&) (in WebKit) WebKit IPC::Connection::dispatchMessage(std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >) (in WebKit) WebKit IPC::Connection::SyncMessageState::ConnectionAndIncomingMessage::dispatch() (in WebKit) WebKit WTF::Detail::CallableWrapper<IPC::Connection::SyncMessageState::processIncomingMessage(IPC::Connection&, std::__1::unique_ptr<IPC::Decoder, std::__1::default_delete<IPC::Decoder> >&)::$_5, void, >::call() (in WebKit) JavaScriptCore WTF::RunLoop::performWork() (in JavaScriptCore) JavaScriptCore WTF::RunLoop::performWork(void*) (in JavaScriptCore) CoreFoundation ___CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ (in CoreFoundation) CoreFoundation ___CFRunLoopDoSource0 (in CoreFoundation) CoreFoundation ___CFRunLoopDoSources0 (in CoreFoundation) CoreFoundation ___CFRunLoopRun (in CoreFoundation) CoreFoundation _CFRunLoopRunSpecific (in CoreFoundation) GraphicsServices _GSEventRunModal (in GraphicsServices) UIKitCore -[UIApplication _run] (in UIKitCore) UIKitCore _UIApplicationMain (in UIKitCore) homework main (in homework:main.m:39) dyld start (in dyld)

I'm building a macOS Google Chrome extension. I need to be able to send messages from the Chrome extension to the macOS app What's the set up flow? I've heard about native messaging, but I struggle to implement it. I've heard about XPC, but not sure JS can send messages to a macOS XPC service.

How can i add Authorization header to a wkwebview. I checked https://developer.apple.com/documentation/foundation/nsurlrequest#1776617 which says Authorization header is a reserved http header and shouldn’t be set. I want to set it when requesting a url in wkwebview for authentication purpose?