Explore the integration of web technologies within your app. Discuss building web-based apps, leveraging Safari functionalities, and integrating with web services.

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WalletPush - Issue with JWT authentication
Hello, I find it difficult to find information about this function, but Apple would allow you to download a Wallet ticket via a JWT signed token, without going through a pkpass, by calling the url https://wallet.apple.com/push/pass? Jwt= + jwt I have made several attempts with a different payload, either I am redirected to the Apple Pay presentation page, or I have a 403 error. I think I'm on my way, but I must miss a step in my signature. Could someone help me and give me the structure or how to manage the key? At the moment I use an Identifiers type PassType ID linked to a Certificate. Has anyone heard of this novelty? According to ChatGPT it should date from iOS 16-18 and potentially not be open to all devs. Thank you! Beautiful day
Topic: Safari & Web SubTopic: General Tags:
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413
Jul ’25
iOS 26 WebKit Crash
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)
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739
Jul ’25
[bug report] Unicode characters with "Variation Selector-15" (U+FE0E) are not rendered as text in iOS 18.1.1
I reported this bug one year ago in https://developer.apple.com/forums/thread/746406, but as it is not been fixed yet, I'm going to try by opening this new incident report. iOS is not working for the Unicode Variation Selector-15 (U+FE0E) for all the characters. Can you please apply that variation selector to all your Unicode characters? I) Steps to reproduce the issue: navigate in safari to the page https://eurovot.com/vs.htm II) Expected result: as the 1st column of characters have the Variation Selector-15 (U+FE0E) applied, and the 2nd column have the Variation Selector-16 (U+FE0F) applied, the first column should always display text characters (in orange) and the second column emoji characters. III) Error result: some characters are working fine in the 1st column and displayed as text (in orange colour), but some other aren't displayed as text, they wrongly displayed as emojis instead.
Topic: Safari & Web SubTopic: General
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491
Feb ’25
Epic games website sign in page
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.
Topic: Safari & Web SubTopic: General
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278
Jun ’25
JavascriptCore crashes with pas_reallocation_did_fail
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
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Jul ’25
WKWebView based Browser Yubikey&WebAuthn Support
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
Topic: Safari & Web SubTopic: General Tags:
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552
Mar ’25
How to trigger Safari App Extension with a keyboard shortcut without a content script and Accessibility permissions?
I have a Safari App Extension which allows users to switch between last open tabs with a shortcut option+tab in the same way it's possible to switch between last open apps with command+tab. Here is how i do it: I inject a content script on all websites which has the only thing – key listener for option+tab presses. When a user presses option+tab, that keyboard listener detects it and sends a message to the Safari Handler. Then Safari Handler sends a message to the containing app and it shows a panel with last open tabs. This approach has a problem: it shows a message to a user in settings: "Can read sensitive info from web pages, including passwords..." Which is bad, because in reality i don't read passwords. If i remove SFSafariContentScript key in the Safari App Extension target's Info.plist, then this message about reading sensitive data disappears, but then i loose the ability to open the tabs panel. How can I open my app window with a shortcut without frightening a user? It's possible to listen to global key presses, but that would require a user to grant the app permissions of Accessibility (Privacy & Security) in macOS system settings, which also sounds shady. I know an app which does not require an Accessibility permission: https://apps.apple.com/ua/app/tabback-lite/id6469582909 and at the same time it does not tell a user about reading sensitive data in the extension settings. Here is my app: https://apps.apple.com/ua/app/tab-finder/id6741719894 It's open-source: https://github.com/kopyl/safari-tab-switcher
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582
Feb ’25
What makes Safari render an active extension's icon in color in the toolbar?
Sometimes Safari is rendering the icon for an active extension in its original provided colored representation, other times Safari is applying an overlay color in line with the system's highlight color. This difference can even be seen seen on the Safari Extensions Developer home page: https://developer.apple.com/safari/extensions/images/extensions-hero-large_2x.png You will notice that Grammarly's icon is shown in it's original color format, while the others aren't. Example of extensions where the icon is shown in color: Bitwarden Grammarly 1Password Consent-O-Matic I've compared the source code of Bitwarden and Consent-o-Matic with my own extension and cannot find any differences in the settings or image properties (resolution, DPI, file type, color profile). If I take the exact PNG source files from said open source extensions and replace them in my own source code, these icons show up in full color. Does this perhaps mean there is a bug in Safari's processing of the icons where it fails to overlay the icon with the highlight color in some cases? I and I assume many developers with me would like to understand what determines this difference. Ideally, there is a consistent UX where the end user has the choice between icons in color or highlight color overlay.
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1.2k
Mar ’25
Safari Extension doesn't load after running Product > Archive
I've been developing a Safari web extension for MacOS and iOS, and I'm running into a very strange issue. I ported over my Chrome extension to Safari, and for several days as I was iterating on the extension (change code, build, run, test in Safari), everything worked perfectly fine. Once I was finished with the extension, I followed the instructions on how to prepare to submit the Safari web extension (and it's containing MacOS and iOS apps) to the App Store for review. For the MacOS app and Safari web extension on Mac, I changed my target from "My Mac" (which I'd been using for testing), to "Any Mac". I then went to the "Product" menu in Xcode and selected "Archive" That's when things started to go wrong. The next time I went to Safari, my web extension could no longer find critical files to run the extension (such as background.js, popup.html, etc.) This was despite there being no code changes before or after me creating a build archive. When I restarted Safari, the extension no longer appeared in the list of extensions within preferences. No matter what I do (clean build folder and re-run, restart Safari, restart Xcode, restart computer), nothing will get my extension to show up in Safari again. Note that this does not happen with the Safari web extension in the iOS simulator. It only happens on Mac. I was confident that my extension was working, so I submitted my extension to the Mac App Store for review. It was approved, and a few users have downloaded it and it works totally fine. To further try to figure out what's going on, I created a new sample Xcode project. From the new project screen, I chose the "Safari web extension" under "Multiplatform". Without making any code changes, I build and run that project, and the default MacOS app and Safari web extension from the template. I then immediately create an archive (with no code changes). Once I try to run the project for my Mac again, the extension no longer works. So I have verified that this problem does not have to do with my extension's code, but I cannot for the life of me figure out what is wrong. I have examined every possible build setting, but given that I ran a default project template, made no changes, and it still had this problem, I'm not sure what else could be wrong.
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656
Jan ’25
Animated AVIF Playback Inconsistency on Safari Across iPhone Models
Animated AVIFs don't work properly on Safari, with inconsistent behavior across iPhone models. On iPhone 14 Pro (A16, iOS 18.3.1), playback works fine, but on iPhone 15 (A16, iOS 18.3.1), it shows as a still image. iPhone 16 Pro (A18, iOS 18.4 beta) plays correctly, and M1 Pro MacBook handles it well too. Oddly, Xcode simulator (M1 Pro) only plays a specific file on iPhone 14 Pro. Is this tied to AV1 decoding differences (hardware vs. software) or a WebKit rendering issue? Any insights or documentation would help! Note: The tested images are commercial files, so I can’t attach them here, but I’m happy to share those upon request.
Topic: Safari & Web SubTopic: General
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377
Feb ’25
WKBrowsingContextController is invalid
Is this code invalid on a phone running xcode16 iOS18? Class cls = NSClassFromString(@"WKBrowsingContextController"); SEL sel = NSSelectorFromString(@"registerSchemeForCustomProtocol:"); if ([(id)cls respondsToSelector:sel]) { [(id)cls performSelector:sel withObject:@"http"]; [(id)cls performSelector:sel withObject:@"https"]; } }
Topic: Safari & Web SubTopic: General
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135
Jun ’25
Safari goes into an infinite loading loop if it cannot load the webpage
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.
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886
Mar ’25
WKWebView requires authentication
I use WKWebView to display a webpage that requires authentication through an authentication provider. This works as expected, but when I close and reopen the app, I have to reauthenticate. However, if I open the same page in Safari, I only have to authenticate once. If I close Safari and reopen it, the page displays without prompting me to authenticate again. I see some cookies stored in httpCookieStore, so I assume that storing cookies works. Does anyone have an idea why authentication is not persistent between app launches? Thanks in advance. Best regards, Marc
Topic: Safari & Web SubTopic: General Tags:
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146
Jul ’25
Apple Script to Automate Web Page Plot Data
Can someone please help me: I do not have the brain space (85yo) to figure out an Apple Script or Java Script app to do this simple task. I have spent a few hours each day, over several days, and have made zero progress on such an apparently simple task. I wish to create an Automator App for the macOS Safari browser that will schedule (via a Calendar Event) the download of the 48hr data behind the hourly Fuel Mix Plot Data from the AEMO Web Site, every Monday, Wednesday, Friday and Sunday. Here is the link to the AEMO web site: AEMO, Energy Systems, Electricity, National Electricity Market (NEM), Data (NEM),Data Dashboard https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/data-nem/data-dashboard-nem The 48 hour hourly Fuel Mix data is found by selecting the "Fuel Mix" button (which by default will display the NEM Current Trend). The 48 hour trend is displayed by tapping on the small "Current" pulldown menu, and selecting "48 hrs". The 48hr Data is down loaded by selecting the small circular button just to the right of the pulldown menu. a) AEMO Web Site: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/data-nem/data-dashboard-nem b) Main Menu, and underlying html, c) Fuel Mix menu, Pulldown list, DownLoad button, and underlying html, I am familiar with C++ and have built Xcode Apps, and used Excel Macros extensively in the past. Thank you. Robert.
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Jun ’25