This is my first post, so please forgive me if it is to the wrong area.
I've been using Tahoe for a few days and, overall, it's very stable. But the one thing that has bothered me to no end is Safari's new behavior with respect to its header (Address bar, Favorite bookmarks bar, tab bar) background color. The web content of the active tab seems to affect everything - and oftentimes makes things completely unreadable - at least in "Dark" mode. For instance, if a web page uses a white background, the Favorites bookmark labels are the same color as the bookmark background, so reading the labels is simply impossible. At other times, they're just very difficult to read.
Similarly, it is almost always impossible to tell which tab is the active one - my only workaround is to try 100% brightness....or to just guess.
When Apple previously experimented with letting content bleed through to the top, there was a setting for stopping it - but I don't see such a setting anymore. Do you you know of any way to stop this effect?
General
RSS for tagExplore 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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Hi,
I'm encountering an issue with the Clipboard API's writeText() method in Safari. It throws a NotAllowedError even when triggered by a user action (selecting an option from a <select> element). Is this expected?
This issue seems specific to Safari, as the same code works perfectly in Firefox and Chrome.
Perhaps I should send feedback to Apple, but I'd like to post it here first in case I misunderstand something.
Problem
In Safari, when I try to copy text to the clipboard using navigator.clipboard.writeText() within an input event listener attached to a <select> element, it fails with 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.
Environment
Safari
18.2 (20620.1.16.11.8)
Technology Preview 210
macOS Sequoia 15.2 (24C101)
Example
I've created a minimal reproducible example on CodePen: https://codepen.io/mshibanami/pen/LEPdxXZ
Here's the relevant JavaScript code from the example:
selectElement.addEventListener('input', async (event) => {
const selectedText = event.target.options[event.target.selectedIndex].text;
try {
await navigator.clipboard.writeText(selectedText);
alert(`Text copied to clipboard: ${selectedText}`);
} catch (err) {
alert('Failed to copy text to clipboard: ' + err);
}
});
Firefox and Chrome handle this code without any issues, successfully copying the text to the clipboard, but not Safari.
Possible Cause
I suspect this issue might be related to WebKit's User Activation API. It seems like Safari is not correctly recognizing the input or change event on a <select> element as a valid user activation for the Clipboard API, even though it is initiated by a user gesture.
Questions
Is this behavior unexpected? Should Safari allow the Clipboard API to work in this context?
(Technically, this might be expected as of now, as such events are not explicitly described in https://webkit.org/blog/13862/the-user-activation-api/.)
Any insights or suggestions would be greatly appreciated. Thanks!
iOS Safari 18.4/18.5 with IIS Windows Authentication with negotiate hangs after entering credentials
I don't think the issue is specific iOS 18.
We have a web application that runs with IIS Authentication of Windows and Anonymous. Initially the app opens and the user clicks a button and triggers the "401 Challenge" via ASP.NET. The browser presents the Active Directory login, user enters credentials, clicks Sign In, and the browser hangs (may actually be negotiating something). After a few minutes the user is logged into the application.
We have done a number of google searches/AI to try to determine what to change and there is no clear solution. Is there anything else to try?
This problem is not seen in Chrome on iOS or on a Windows machine. Strangely it is also not seen using BrowserStack with one of their "real" devices.
We have other apps that run with just Windows Authorization and this problem is not observed.
Topic:
Safari & Web
SubTopic:
General
Hey Guys
My PWA video playback and even youtube videos stopped working after updating iOS to 26.0.1.
The video thumnails appear fine and if i try to play the video, it remains stuck.
If i restart the phone, the video plays for a second in the PWA and then stops again and entire app gets stuck.
Request apple team to fix this issue at the earliest. This is hampering all my iOS users who install the PWA on their device homescreen and use it as app.
FYI strangely EVERYTHING WORKS FINE ON iOS SAFARI browser including videos playback If i open it as a web app.
so this seems like a specific PWA issue on latest ios 26.0.1
Topic:
Safari & Web
SubTopic:
General
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?
Topic:
Safari & Web
SubTopic:
General
When CHIPS was introduced in 18.4 it worked well, however on 18.5 it does not appear to work. There do not appear to be release notes about this in 18.5, so can someone provide definitive if this is a defect that will be fixed, or have they already been deprecated?
hi
Testing on OS26 Public Beta 6.
In Safari, if you enter x homepage and scroll, the tab bar sticks to the bottom and moves.
Make the keyboard appear in the search window
When scrolling down on the Safari homepage again, the issue of not being able to stick to the bottom appears.
Is it because the liquid glass UI was applied this time? and safari bug?
Please let me know if I'm missing anything
Topic:
Safari & Web
SubTopic:
General
The issue of fixed elements with
{ bottom: 0 }
moving up when scrolling still persists.
It seems to be a general issue with the IOS 26 release.
It affects other browser too. I tested on browsers such as Safari, Chrome, Firefox, Edge and Bravo.
With the exception of Edge, all the others display the behavior.
Device: iPhone 15 Pro
IOS Version: 26.0.1
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/
I'm a web developer of WebRTC based web app for video and audio calls. After updating to iOS 26.1 beta I noticed, that my app can't use microphone anymore.
When I'm calling to getUserMedia with audio set to true, Safari returns error "No AVAudioSessionCaptureDevice device".
Other WebRTC demo apps also can't access microphone on this firmware.
And maybe it's connected somehow, but safari can't detect connected AirPods Pro 2 as an input device.
So, this bug brakes any WebRTC app, that uses microphones.
Title: Content Overlapping Address Bar After Clicking Links in Safari, tested on iPhone 11 (iOS 18.1.1)
Description:
When browsing in Safari on iPhone (iOS 18.1.1), the one-tab bar (address bar) collapses as expected when scrolling down a page. However, after clicking on a link and loading the next page, the content appears to overlap the collapsed address bar. This results in parts of the content being hidden or obscured by the address bar, which affects the user experience, especially on mobile devices with limited screen space. This issue is reproducible on Next.js applications and can be observed on websites such as rotterdam.nl and halderberge.nl.
Steps to Reproduce:
Enable the One-Tab Bar: Go to Settings > Safari and enable the one-tab bar feature.
Open the website rotterdam.nl or halderberge.nl in Safari on an iPhone 11 (iOS 18.1.1).
Scroll down the page so that the top address bar collapses.
Click on any link on the page to load a new one.
Once the new page loads, observe that the content appears on top of the collapsed address bar, causing parts of the content to be hidden or obscured.
Expected Result:
The content should not overlap or be hidden behind the collapsed address bar after the page reloads. The layout should adjust properly without interference from the address bar, providing a smooth user experience.
Actual Result:
When the new page loads, the content overlaps or appears on top of the collapsed address bar, causing parts of the content to be hidden or obscured.
Device(s) Affected:
iPhone 11 running iOS 18.1.1.
OS Version:
iOS 18.1.1
Technical Notes:
To address this issue, the following solutions have been attempted with no success:
Viewport Meta Tag:
<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
This was added to help ensure proper layout on mobile devices, but did not resolve the issue.
CSS Safe Area Insets:
body {
padding-top: env(safe-area-inset-top);
}
This CSS rule was applied to account for the safe area and prevent content from being hidden under the address bar, but it did not solve the overlapping issue.
Scroll Position Adjustment (for scroll-to-top button):
Adjusting the scroll behavior by changing the scroll position to {top: 1} instead of {top: 0} was a successful workaround to keep the address bar collapsed when clicking the "scroll to top" button. However, this did not resolve the issue when navigating between pages or changing routes, where the content still overlaps the collapsed address bar.
I am creating a Safari Web Extension.
There are two calls let say, call1 and call2 which gets executed in sequence by browser, call1 gives a 302 type response and redirects to call2.
When creating DNR rule for adding "Cookie" in the request header of call1, the same cookie gets added to the request header of call2 as well(Same is the case for other headers/custom headers as-well). Because of this the set-cookie present in response header of call1 is not sent in the request header of call2, and returns 400 response.
The same setting is working fine for other browsers chrome & firefox.
Is this a bug or DNR works differently for safari ?
currently "webRequestBlocking" works in safari for manifest v3, is there any development of it getting removed just like it's removed in chrome in mv3.
Hi all,
Chrome has it already - animation-timeline aka scroll-animations.
I can nowhere find any informations on what's the status in Safari/Webkit.
Seems like they do not have it on the agenda at all?
Does anyone know anything - I wanted to push a feature request for that - but also seem there is no feature request list anymore for webkit.
See: https://www.w3.org/TR/scroll-animations/
Cheers and kind regards!
Enhancement in managing tabs in Safari
It would really be awesome to bring the fascinating tab management feature of Arc Browser to Safari across iOS, iPadOS and macOS.
Especially below listed features;
Multitask
Create
Organize
Rev Up
Release Notes
For further info , here is the official link of Arc Browser, https://resources.arc.net/hc/en-us/categories/16435255982103-Features.
Device: iPhone 15pro, ios26.0 (23A 341)
IOS version: 26.0 (23A 341)
When using position: sticky; bottom: 0, the div is expected to stick to the bottom of the viewport when the browser toolbar hides while scrolling. However, it stops at the height where the toolbar was, instead of moving down with the disappearing toolbar.
In the image below, the red-bordered navigation shows the situation where it does not stick to the bottom.
i
I'm testing web extension to safari on iOS. I've built and added extension application to simulator, but on safari settings shows no extensions.
I'm using Xcode 16.3 beta 2 with Simulator iOS 18.4 (22E5216h), tested on iPhone 16.
https://app.screencast.com/oUq4EMonmfT7u
https://app.screencast.com/MCquvHzmZi8QS
Adding Stack Trace for your reference:
thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BREAKPOINT (code=1, subcode=0x1a6efe5b8)
frame #0: 0x00000001a6efe5b8 WebCoreWebCore::BaseAudioSharedUnit::BaseAudioSharedUnit() + 668 frame #1: 0x00000001a6efe044 WebCoreWebCore::CoreAudioSharedUnit::singleton() + 80
frame #2: 0x00000001a9521fe4 WebCoreWebCore::CoreAudioCaptureSource::create(WebCore::CaptureDevice const&, WebCore::MediaDeviceHashSalts&&, WebCore::MediaConstraints const*, std::__1::optional<WTF::ObjectIdentifierGeneric<WebCore::PageIdentifierType, WTF::ObjectIdentifierMainThreadAccessTraits<unsigned long long>, unsigned long long>>) + 360 frame #3: 0x00000001a94f180c WebCoreWebCore::RealtimeMediaSourceCenter::getUserMediaDevices(WebCore::MediaStreamRequest const&, WebCore::MediaDeviceHashSalts&&, WTF::Vector<WebCore::RealtimeMediaSourceCenter::DeviceInfo, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WTF::Vector<WebCore::RealtimeMediaSourceCenter::DeviceInfo, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&, WebCore::MediaConstraintType&) + 356
frame #4: 0x00000001a94f22cc WebCoreWebCore::RealtimeMediaSourceCenter::validateRequestConstraintsAfterEnumeration(WTF::Function<void (WTF::Vector<WebCore::CaptureDevice, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&, WTF::Vector<WebCore::CaptureDevice, 0ul, WTF::CrashOnOverflow, 16ul, WTF::FastMalloc>&&)>&&, WTF::Function<void (WebCore::MediaConstraintType)>&&, WebCore::MediaStreamRequest const&, WebCore::MediaDeviceHashSalts&&) + 356 frame #5: 0x00000001a94fb394 WebCoreWTF::Detail::CallableWrapper<WebCore::RealtimeMediaSourceCenter::enumerateDevices(bool, bool, bool, bool, WTF::CompletionHandler<void ()>&&)::$_0, void>::~CallableWrapper() + 164
frame #6: 0x00000001a814bbe8 WebCoreWTF::Detail::CallableWrapper<WebCore::AVCaptureDeviceManager::refreshCaptureDevicesInternal(WTF::CompletionHandler<void ()>&&, WebCore::AVCaptureDeviceManager::ShouldSetUserPreferredCamera)::$_0::operator()()::'lambda'(), void>::call() + 520 frame #7: 0x00000001ab7f1aac JavaScriptCoreWTF::RunLoop::performWork() + 524
frame #8: 0x00000001ab7f1880 JavaScriptCoreWTF::RunLoop::performWork(void*) + 36 frame #9: 0x00000001935e7d0c CoreFoundationCFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 28
frame #10: 0x00000001935e7ca0 CoreFoundation__CFRunLoopDoSource0 + 172 frame #11: 0x00000001935e6a24 CoreFoundation__CFRunLoopDoSources0 + 232
frame #12: 0x00000001935e5c64 CoreFoundation__CFRunLoopRun + 840 frame #13: 0x000000019360a730 CoreFoundationCFRunLoopRunSpecific + 572
frame #14: 0x00000001e0fb5190 GraphicsServicesGSEventRunModal + 168 frame #15: 0x0000000196239f34 UIKitCore-[UIApplication _run] + 816
frame #16: 0x0000000196238164 UIKitCore`UIApplicationMain + 336
frame #17: 0x000000010811bec4 AppName.debug.dylibmain at AppDelegate.swift:25:13 frame #18: 0x00000001bae06a58 dyldstart + 5964
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 developing an application that needs smooth framerates within a wkwebview that interacts with native code. However, requestAnimationFrame by default is still throttled to 60hz even if all my target devices (the iPad Pro for example) have supported 120hz for a long time already. I noticed that the latest Safari in 18.3 beta supports unlocked framerates, but that's only under Safari feature flags. To my knowledge, these flags do not apply to WKWebView. Is there a way to enable unlocked framerate in WKWebView via requestAnimationFrame? (Calling JS at a faster rate from the native code side will not work, almost definitely, since WKWebView will still render at its own rate.)
This is an experimental application for internal use and I'm okay if there are temporary beta solutions available.
Hello,
In iOS 26 beta, we are seeing an unexpected behavior when using SwiftUI WebView (or a custom WKWebView via UIViewRepresentable).
When an alert is presented above the WebView, the WebView immediately reloads to its initial page. The alert itself also disappears instantly, making it impossible for the user to interact with it.
This issue occurs both with the new SwiftUI WebView / WebPage API and with a wrapped WKWebView. The problem was not present in previous iOS versions (iOS 17/18).
Steps to reproduce:
Create a SwiftUI view with a WebView (pointing to any URL).
Add a toolbar button that toggles a SwiftUI alert.
Run the app on iOS 26 beta.
Tap the button to trigger the alert.
Expected behavior:
The WebView should remain as-is, and the alert should stay visible until the user dismisses it.
Actual behavior:
As soon as the alert appears, the WebView reloads and resets to the initial page. The alert disappears immediately.
Minimal Example:
struct ContentView: View {
@State private var showAlert = false
var body: some View {
NavigationStack {
WebView(URL(string: "https://apple.com")!)
.toolbar {
ToolbarItem(placement: .topBarTrailing) {
Button("Close") {
showAlert = true
}
}
}
.alert("Confirm close?", isPresented: $showAlert) {
Button("Cancel", role: .cancel) {}
Button("Close", role: .destructive) {}
}
}
}
}
I'm using Xcode Version 26.0 beta 7
Thanks for your help.