Hey everyone,
After installing iOS 26 beta, I started noticing unexpected behavior in our input event handlers.
Specifically, when users type into an field, event.target.value is always an empty string — but only when the JS file is loaded from a specific domain (e.g., t1.daumcdn.net). The exact same code works perfectly when hosted on other domains like t2.daumcdn.net or search1.daumcdn.net.
👉 I created a demo here:
🔗 CodePen Demo
The scripts loaded from each domain are 100% identical (apart from the top-level selector). Before iOS 26 beta, this worked fine.
I suspect this is related to ITP or some new cross-origin behavior in Safari, but I’d love to know if anyone else is running into this — or if someone knows a workaround.
Thanks!
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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Hello,
When I view my website (lasaluade) on iphone or ipad the top of my page bodies are cut off (3-4 first lines). However, on PC, Mac or Android everything is OK (see screenshots).
For the record, I built this site with Wordpress and Divi Builder, and I've the same result on Safari and Chrome.
Not being a developer, I don't know where to look (I just think it's iOS-related).
Have you already had this problem? Do you have any ideas?
Thanks for your help!
Topic:
Safari & Web
SubTopic:
General
I am currently developing an app using WKWebView.
In iOS 17, Apple introduced ProxyConfiguration, and I have two questions regarding its usage:
Is there a way to use ProxyConfiguration to distinguish between HTTP and HTTPS traffic?
I have reviewed the documentation but couldn’t find a clear method for this.
As an alternative approach, I am attempting to determine the request scheme within WKWebView and switch proxyConfigurations just before loading the request.
My current implementation sends requests to hoge_a by default and switches to hoge_b only for HTTP traffic.
if #available(iOS 17.0, *) {
if URLString.contains("http:") {
webView.configuration.websiteDataStore.proxyConfigurations = [hoge_b]
}
}
webView.load(request)
if #available(iOS 17.0, *) {
if URLString.contains("http:") {
webView.configuration.websiteDataStore.proxyConfigurations = [hoge_a]
}
}
2. Since I modify proxyConfigurations every time webView.load(request) is called, are there any potential issues or concerns with this approach?
I would appreciate any insights you may have on either of these questions.
We are experiencing a problem that seems to be caused by a specification changes for Safari.
We would like to discuss how to solve this problem.
Sample JavaScript:
<html>
<head>
<script>
function jumpPage(code) {
document.main.code.value = code;
win1=window.open("","win1","toolbar=no,resizable=yes,menubar=no,scrollbars=yes,status=yes,left=0,top=0");
win1.resizeTo(width=screen.availWidth,height=screen.availHeight);
document.main.action="details";
document.main.target="win1";
document.main.submit();
}
</script>
</head>
<body>
<form name="main" method="post" action="" target="">
<a href="javascript:jumpPage('001')">details</a>
<input type="hidden" name="code" value="">
</body>
</html>
This JavaScript performs the following actions when a link is clicked.
Open a window using window.open in JavaScript
Submit the above opened window by post method to the target in JavaScript.
When this operation is performed, the process in (2) could submit to the
target page with “POST” method before iOS18.1, but
will transition to the page with“GET”method from iOS18.2 onward.
All protocols are http.
This problem does not occur if the URL is specified as an IP address, but it does occur if the host name is specified as.
Please let me know how to use with“POST”method as in iOS 18.2 or earlier.
Best regards,
Topic:
Safari & Web
SubTopic:
General
Hello all,
I'm trying to retrieve geolocation data on the web, but I'm having trouble with the altitude value, which seems to differ from what I get on Android.
When using navigator.geolocation.getCurrentPosition in Safari, is the altitude value based on mean sea level, or is it ellipsoidal altitude based on the WGS84 ellipsoid?
altitude (WebKit JS): https://developer.apple.com/documentation/webkitjs/coordinates/1631861-altitude
altitude (Core Location): https://developer.apple.com/documentation/corelocation/cllocation/altitude
ellipsoidalAltitude (Core Location): https://developer.apple.com/documentation/corelocation/cllocation/ellipsoidalaltitude
If anyone has any insight into this topic I would greatly appreciate it!
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
WKWebview of iOS 18 includes Safari browser. When playing videos, some videos show "NotSupportedError: The operation is not supported.", but it is normal on iOS15 devices. The video link is as follows. Even if it is downloaded and referenced locally in HTML, it cannot be played, so it is ruled out that it is a network problem.
https://ydtj-adas.oss-cn-shanghai.aliyuncs.com/e6yun.com/exam/exam/a35447b496b94e5e9a6aab27d62c867e.mp4 cannot be played
https://ydtj-adas.oss-cn-shanghai.aliyuncs.com/e6yun.com/exam/exam/82d970957a7d4e8d88c13cd101143005.mp4 can be played
So I have web Augmented Reality apps hosted on AWS S3. It worked fine for a month, but as soon as the IOS 18.4 update was installed they stopped working. It works on every other device and IOS versions.
The URLs for the mentioned AR experiences:
digitechonline.in/solsprefimaginewt8/
digitechonline.in/solsprefimaginewt8p2/
digitechonline.in/orocarear/
These AR experiences get stuck on the loading screen and either reload or give an error. Ideally the camera is supposed to open.
I have tested it on Safari, Microsoft Edge and Google Chrome browsers.
They were created through Unity webgl and hosted on AWS S3 bucket. Please provide a quick solution to this.
While implementing Apple Maps into our web application, I have a scenario where I want to be able to drag and move some of my custom annotations around. While that is working, when "picking up" the annotation before dragging it, there is an animation which I believe is to represent the human interaction of picking up a pin from a map, I would like to cancel that animation and thought that would be possible by calling preventDefault() in the emitted long-press event, which the documentation states that annotations should emit if they are draggable. The thing is that I don't get this event to emit when long pressing an annotation. So I believe that I have found a bug.
It's in this paragraph in the documentation https://developer.apple.com/documentation/mapkitjs/handling-map-events#Respond-to-map-interaction-events
A long press occurs on the map outside an annotation. A long press may be the beginning of a panning or pinching gesture on the map. You can prevent the gesture from starting by calling the preventDefault() method of the event. Annotations need to be draggable to dispatch long-press events.
In anybody else experiencing this or do you see any clear fix for this? Maybe there is another way to cancel that "picking up the annotation for dragging" animation. I have seemed to try anything else.
Doc URL: https://developer.apple.com/documentation/applepayontheweb/requesting-an-apple-pay-payment-session
How can I send a POST request using PHP, and what certificates are required?
Currently, I have downloaded the following files on the backend: merchant_id.cer, apple_pay.cer, and a local cert.p12 file
This my code:
But,run error:cURL Error: unable to set private key file: '***/private.pem' type PEM%
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 to the server which will be used for verification. How can i do that?
iOS 18.4 introduces the new WKWebExtension API to support extensions in WKWebView. However, for extensions that have migrated to Manifest V3 and use an extension service worker as the background script, it's currently not possible to inspect them through Safari.
This is only thing I can see, I don't know how to inspect the details of the "background.js"
I'm wondering—has this changed? Is it now possible to inspect extension service workers?
Environment
• Device: any iPhone running iOS 26 Developer Beta 5 (23A5308g)
• Xcode: 16.3
Short description
The app crashes the moment the user tries to long-press to select text inside a WKWebView, double-tap an image with Text (magnifier appears)
The exception is CALayer position contains NaN. frame = (nan,0;0,48) chorPoint=(inf, 0) and it is thrown in the UI process.
Build & run any project that hosts a WKWebView. Inject the following CSS via script (this is what we do to suppress the native callout menu):
WKWebView *webView = [[WKWebView alloc] initWithFrame:self.view.bounds
configuration:[WKWebViewConfiguration new]];
NSString *js =
@"document.documentElement.style.webkitUserSelect='none';"
"document.documentElement.style.webkitTouchCallout='none';";
[webView evaluateJavaScript:js completionHandler:nil];
[self.view addSubview:webView];
Incident Identifier: EE6FB046-5087-4F15-A72D-A74965347A30
CrashReporter Key: 29e8e58e02a07557adb4ce3f463d764f3ce8bbd5
Hardware Model: iPhone16,1
Process: wallet [642]
Path: /private/var/containers/Bundle/Application/4B4E609A-C8BF-4C56-AB2A-1638249B98A5/wallet.app/wallet
Identifier: xxxxxxx
Version: xxxx
AppStoreTools: 16F7
AppVariant: 1:iPhone16,1:18
Code Type: ARM-64 (Native)
Role: Foreground
Parent Process: launchd [1]
Coalition: xxxxxx
Date/Time: 2025-08-06 12:05:24.0732 +0800
Launch Time: 2025-08-06 11:49:40.3802 +0800
OS Version: iPhone OS 26.0 (23A5308g)
Release Type: Beta
Baseband Version: 3.02.02
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Termination Reason: SIGNAL 6 Abort trap: 6
Terminating Process: wallet [642]
Triggered by Thread: 0
Application Specific Information:
abort() called
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x22da0f0cc __pthread_kill + 8
1 libsystem_pthread.dylib 0x1e097b7e8 pthread_kill + 268
2 libsystem_c.dylib 0x191361f1c abort + 124
3 libc++abi.dylib 0x182e7a808 __abort_message + 132
4 libc++abi.dylib 0x182e69484 demangling_terminate_handler() + 304
5 libobjc.A.dylib 0x182d7bf28 _objc_terminate() + 156
6 wallet 0x1068ff8c8 0x1046f4000 + 35698888
7 libc++abi.dylib 0x182e79bdc std::__terminate(void (*)()) + 16
8 libc++abi.dylib 0x182e7d314 __cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) + 88
9 libc++abi.dylib 0x182e7d2bc __cxa_throw + 92
10 libobjc.A.dylib 0x182d7992c objc_exception_throw + 448
11 CoreFoundation 0x185e908d4 +[NSException raise:format:] + 128
12 QuartzCore 0x18678a874 CA::Layer::set_position(CA::Vec2<double> const&, bool) + 160
13 QuartzCore 0x1869a7270 -[CALayer setPosition:] + 52
14 UIKitCore 0x18c4ac564 -[UIView _backing_setPosition:] + 176
15 UIKitCore 0x18cefdf0c -[UIView setCenter:] + 220
16 UIKitCore 0x18cd9f794 -[_UIEditMenuContentPresentation _displayPreparedMenu:titleView:reason:didDismissMenu:configuration:] + 936
17 UIKitCore 0x18cd9f3c0 __54-[_UIEditMenuContentPresentation _displayMenu:reason:]_block_invoke + 104
18 UIKitCore 0x18ced1060 -[UIEditMenuInteraction _editMenuPresentation:preparedMenuForDisplay:completion:] + 384
19 UIKitCore 0x18cd9f2e4 -[_UIEditMenuContentPresentation _displayMenu:reason:] + 304
20 UIKitCore 0x18cd9f0d8 -[_UIEditMenuContentPresentation displayMenu:configuration:] + 64
21 UIKitCore 0x18ced0344 __58-[UIEditMenuInteraction presentEditMenuWithConfiguration:]_block_invoke + 260
22 UIKitCore 0x18ced1f8c __80-[UIEditMenuInteraction _prepareMenuAtLocation:configuration:completionHandler:]_block_invoke + 80
23 UIKitCore 0x18cc8403c __109-[UITextContextMenuInteraction _editMenuInteraction:menuForConfiguration:suggestedActions:completionHandler:]_block_invoke + 180
24 UIKitCore 0x18cc84584 __107-[UITextContextMenuInteraction _querySelectionCommandsForConfiguration:suggestedActions:completionHandler:]_block_invoke + 148
25 WebKit 0x1a05ae5d4 WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>::operator()(WebKit::DocumentEditingContext&&) + 64
26 WebKit 0x1a05bb468 WTF::Detail::CallableWrapper<WTF::CompletionHandler<void (IPC::Connection*, IPC::Decoder*)> IPC::Connection::makeAsyncReplyCompletionHandler<Messages::WebPage::RequestDocumentEditingContext, WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>>(WTF::CompletionHandler<void (WebKit::DocumentEditingContext&&)>&&, WTF::ThreadLikeAssertion)::'lambda'(IPC::Connection*, IPC::Decoder*), void, IPC::Connection*, IPC::Decoder*>::call(IPC::Connection*, IPC::Decoder*) + 196
27 WebKit 0x19fcf5db8 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::Connection*, IPC::Decoder*>::call(IPC::Connection*, IPC::Decoder*) + 64
28 WebKit 0x19fce54f0 IPC::Connection::dispatchMessage(WTF::UniqueRef<IPC::Decoder>) + 340
29 WebKit 0x19fcf5aa0 IPC::Connection::dispatchIncomingMessages() + 536
30 JavaScriptCore 0x19a8f85d4 WTF::RunLoop::performWork() + 552
31 JavaScriptCore 0x19a8f838c WTF::RunLoop::performWork(void*) + 36
32 CoreFoundation 0x185da6230 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28
33 CoreFoundation 0x185da61a4 __CFRunLoopDoSource0 + 172
34 CoreFoundation 0x185d83c6c __CFRunLoopDoSources0 + 232
35 CoreFoundation 0x185d598b0 __CFRunLoopRun + 820
36 CoreFoundation 0x185d58c44 _CFRunLoopRunSpecificWithOptions + 532
37 GraphicsServices 0x224ce0498 GSEventRunModal + 120
38 UIKitCore 0x18b6c84b8 -[UIApplication _run] + 792
39 UIKitCore 0x18b66cbc0 UIApplicationMain + 336
40 wallet 0x1046f8558 0x1046f4000 + 17752
41 dyld 0x182dcdb18 start + 6332
We have noticed that in iOS 16 or greater , the Smart App Banner which shows based on meta tag added is not showing the app ratings inside the popup. Can we override this new behavior to show ratings and custom text.
Hi everyone,
We work on a macOS plugin which then gets loaded into another application. I'm trying to load a webpage in that application through our plugin using a WKWebView & I set my class as the navigationDelegate for the same. I do not receive any callbacks for the WKNavigationDelegate methods. I have debugged & made sure that the navigationDelegate is actually set to my class. Here is a sample code of what I'm doing :
[[NSApplication sharedApplication] runModalForWindow:self.mWindowController.window];
- (void)windowDidLoad
{
[super windowDidLoad];
[self.window makeKeyAndOrderFront:self];
[self.window orderFrontRegardless];
if (self.mLoadingView == nil)
{
self.mLoadingView = [[LoadingView alloc] initWithFrame:[[self.window contentView] frame]];
}
[[self.window contentView] addSubview:self.mLoadingView];
[self.mLoadingView showLoadingView];
[self.window setLevel:NSMainMenuWindowLevel];
[self loadWebPage];
}
-(void)loadWebPage
{
[self.mWKWebView setUIDelegate:self];
[self.mWKWebView setNavigationDelegate:self];
[self.mWKWebView stopLoading];
NSURL *lURL = [self samplePageURL];
WKNavigation *lNavigation = [self.mWKWebView loadRequest:[NSURLRequest requestWithURL:lURL]];
}
- (void)webView:(WKWebView *)pWKWebView
didFinishNavigation:(WKNavigation *)pNavigation
{
[self removeLoadingview];
[self.mWKWebView evaluateJavaScript:@"document.body.setAttribute('oncontextmenu', 'event.preventDefault();');" completionHandler:nil];
}
I do not get any calls in the webView:didFinishNavigation: & I also tried other methods like webView:didStartProvisionalNavigation, webView:didFailProvisionalNavigation:withError: etc but did not receive any call in those either. Instead of runModalForWindow: if I use showWindow: on the mWindowController the webpage somehow loads but I still don't get any callbacks & so the loadingview subview is also present. The WKWebView is placed in a storyboard, and I have an IBOutlet connected to it in my class.
Has anyone faced a similar issue or can point me to something I might be missing? All help is appreciated. Thanks in advance.
We’re encountering an issue when trying to add non-standard headers to outgoing requests using Declarative Net Request (DNR) rules in our Safari Web Extension.
Tested on macOS 15.4 with Safari 18.4.
Specifically, when attempting to add a custom header such as "X-Custom-Header" using a DNR rule, the header does not appear in the request. We are able to add standard headers like "Authorization" and "Cookie" to the request successfully using the same method.
This behavior suggests that Safari may be filtering or blocking non-standard headers when set via DNR rules, unlike other browsers.
In Chrome and Firefox, the same rule adds the "X-Custom-Header" header without any issue.
We are looking for assistance in fixing these issues and having our Safari Extension function the same as it does in Firefox and Chrome.
I am new to PHP. I have developed my own web site with a lot of javascript in simple HTML files. I want to do some extensions with PHP but I can't make a simple web page function. I am sure something simple is wrong. Help!
Here is the test web page I made: hello.html
<html>
<head>
<title>Hello World</title>
</head>
<body>
<?php echo 'Hello World!'; ?>
</body>
</html>
Pointing Safari at hello.html gives me a new tab with the correct title, but no "Hello World" in the page itself.
Here is the output of php --version:
WARNING: PHP is not recommended
PHP is included in macOS for compatibility with legacy software.
Future versions of macOS will not include PHP.
PHP 7.3.24-(to be removed in future macOS) (cli) (built: Jun 17 2021 21:41:13) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.24, Copyright (c) 1998-2018 Zend Technologies
Safari Extension Error: “Non-persistent background content cannot listen to webRequest events.” after macOS 15.4 / Safari 18.4 Update
We’re seeing the following error in the Safari Extensions tab after updating to macOS 15.4 and Safari 18.4:
“Non-persistent background content cannot listen to webRequest events.”
This error did not appear prior to the update, and we haven’t found any official documentation stating that webRequest API is no longer supported in Safari.
In our extension (Manifest V3), we are using the webRequest.onHeadersReceived callback to intercept response headers and read updated cookies.
While the functionality itself still works as expected. we’re able to access the response headers and this error is now shown in the Extension settings page.
We are not seeing this issue in other browsers (Chrome, Firefox) using the same Manifest V3 setup.
Is there any plan to deprecate webRequest support in Manifest V3 for Safari?
We’d appreciate any clarification or guidance on how to handle this going forward.
I have a Safari Web Extension that successfully receives a message from a webpage and returns a response.
I now want to add a user interface to the Safari Web Extension. How do I do this?
I have modified the default template code as follow to add an NSAlert for testing. The modal runs, but no alert ever appears, and the code remains stuck at runModal.
What is the correct way to add a UI to a webextension?
- (void)beginRequestWithExtensionContext:(NSExtensionContext *)context {
id message = [context.inputItems.firstObject userInfo][SFExtensionMessageKey];
NSLog(@"Received message from browser.runtime.sendNativeMessage: %@", message);
NSAlert* alert = [[NSAlert alloc]init];
[alert setMessageText:message[@"request"]];
[alert setInformativeText:@"Hello"];
[alert runModal];
NSExtensionItem *response = [[NSExtensionItem alloc] init];
response.userInfo = @{ SFExtensionMessageKey: @{ @"id": message[@"id"], @"uuid": message[@"uuid"], @"contentType": message[@"contentType"], @"response": message[@"request"] } };
[context completeRequestReturningItems:@[ response ] completionHandler:nil];
}
@end
I’ve been working on a personal iOS project for fun — essentially a YouTube music player, learning how background media playback works in native iOS apps.
After seeing that Musi (a famous music streaming app) can play YouTube audio in the background with the screen off — I got really curious. I’ve been trying to replicate that basic background audio functionality for YouTube embeds using WKWebView. I've spent a crazy amount of time (probably 20 hours) trying to figure this out but have achieved no success.
Here’s what I’ve tried so far:
-Embedding a YouTube video in a WKWebView
-Activating AVAudioSession with .playback and setting .setActive(true)
-Adding the UIBackgroundModes key with audio in Info.plist
-Adding the NSAppTransportSecurity key to allow arbitrary loads
--Testing on a real device (iPhone 14, iOS 18.1 target)--
What happens:
Audio plays fine in the foreground.
If I exit the app and go to the lock screen quickly enough (less than 3 seconds) after pressing play, I can resume playback briefly from the lock screen — but it doesn’t automatically continue like in Musi and other apps like it.
Most of the time, the audio stops when the app is backgrounded.
I get this error consistently in the logs:
Error acquiring assertion: <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)"
It seems like the app lacks some specific entitlements related to WebKit media playback. I don’t have AppDelegate/SceneDelegate (using SwiftUI), but can add if needed.
I’m super curious how music streaming apps using youtube as a source get around this — are they doing something different under the hood? A custom player? A SafariViewController trick? Is there a specific way to configure WKWebView to keep playing in the background, or is this a known limitation?
Would really appreciate any insight from folks who’ve explored this before or know how apps like Musi pulled it off.
Thanks in advance!