navigator.permissions.query -> permissionStatus.onchange
is Supposed to listen to the event of a change in permissions in the
browser settings.
This works for all browsers, but in Safari for iOS and MacOS this seems to be broken in the currently recent versions 17.x
Example:
navigator.permissions.query({ name: 'notifications' }).then((permissionStatus) => {
permissions = permissionStatus.state; // this value gets set correctly
permissionStatus.onchange = () => {
// This will not get executed when permissions have been changed
// within the safari settings app, or iOS Settings for PWA or Safari
};
});
Can someone from Apple's Webkit Team please comment on this?
Thank you.
T.
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Hello - we have a Mac application that uses a browser extension and the web extension JS APIs to communicate with Safari. During user testing we found that the tab title and tab URL properties are empty when obtaining the set of open windows via windows.get() after a Safari restart. We are testing with Safari 18.4 (20621.1.15.11.10). We have made a TestFlight version of our app and extension available to help with testing: https://testflight.apple.com/join/Va8Zdv9d. Screenshot and screen recording are attached to the Feedback ID supplied below.
STEPS TO REPRODUCE
Install Tabby via the TestFlight link
Enable the Tabby for Safari extension in the Safari extensions dialog
Grant permissions for Tabby for Safari to all windows all the time
Within Safari, open two windows each with at least two tabs
Within the Tabby app, ensure you see the windows and tabs listed correctly (tab title displayed for each)
Quit and restart Safari
Expected behavior
Safari re-opens existing windows and Tabby displays title for each tab
Observed
Safari re-opens existing windows but within Tabby all tabs except the current tab are displayed with a title of “Start Page”. Under the hood the tab title and tab URL properties are empty when returned via a windows.get() call after Safari restarts.
NAME AND APPLE ID OF APP
Tabby - Browser Tab Manager
1586203406
FEEDBACK ASSISTANT ID
FB16389506
I have a local HTML file used to display mixed content with images and text. Here's the issue: the same file displays everything correctly in Google Chrome, showing both images and text as expected. However, when opened in Safari, only the text is shown—images are missing, which is very strange.
Interestingly, if I remove .png from the title attribute of the tag, the images show up properly in Safari. Alternatively, if I comment out the inclusion of html2canvas.min.js, the images also display correctly (although the layout breaks without it).
I'm not sure if this is a Safari-specific issue. Can anyone explain what might be causing this problem?
Topic:
Safari & Web
SubTopic:
General
Safari Version 14.0.1 (16610.2.11.51.8)
I am porting a Chrome/Firefox/Edge extension to Safari Web Extension. Mostly, the process was painless, I am, however, seeing quite different behavior in the tab ids generated by Safari compared to Chrome, Firefox, and Edge. My extension has callbacks for each of these browser.webNavigation events:
browser.webNavigation.onBeforeNavigate
browser.webNavigation.onCommitted
browser.webNavigation.onDOMContentLoaded
In each of these I rely on the tab id for various future tab targeting operations. When opening a new tab, the details object passed to each of these callbacks has a non-zero tabId on Chrome, Firefox, and Edge. However, in Safari, the tabId is always zero. To debug, I added one more callback:
browser.webNavigation.onCompleted
At this point Safari finally has a non-zero tabId in the details param. Needless to say this is causing some consternation with achieving the same outcomes as tab tracking on Chrome, Firefox, and Edge. It's like Safari is treating new tabs as "non tabs" until navigation completes. You can even see it when trying to get the tab by tabId=0:
browser.tabs.get(tabId) // tabId=0 here
	.then(tab => {
		// tab is undefined
	});
Seems like this might be a bug. I can't imagine why the behavior is so different from other browsers. Any ideas on how to work around?
Hi!
I configure proxy for webview like
DispatchQueue.main.async {
self.webView.configuration.websiteDataStore.proxyConfigurations = [proxyConfiguration]
}
It is fine in iosiOS 17 however, it crashes in iOS 18.3. And the problem seems to be related to the left side of the equation. I tried to call
print(self.webView.configuration.websiteDataStore.proxyConfigurations.count)
in async block and got the same bad access error. But if stop at that line of code and call
po self.webView.configuration.websiteDataStore.proxyConfigurations
in debugger it returns 0 elements.
Did anyone have the same problem? What may cause the exception?
使用direct distribution进行分发时,safari web extension 在safari setting 中显示没有权限读取、修改或传输任何网页的内容。
但是我在看公证日志显示插件是正常的公证的
这导致safari extension 无法使用。
公证日志
https://www.coupert.com/img/2025-04-10/notarization-log.json
Starting with iOS 26.2, when Safari tabs are set to Bottom or Compact view, some pages are not rendering properly. The error does not occur in Top view.
For some pages, scrolling causes rendering to be very slow, causing the user to experience page breaks and missing parts. If the user waits a few seconds, the missing parts of the page will appear, but the issue will reoccur when scrolling further. We have tested this on all available iOS devices and the issue occurs on all iPhones running iOS 26.2. The issue does not occur on iOS 26.1, and we have not experienced it on devices running iOS 18.
The issue can be reproduced on the following pages with an iPhone running iOS 26.2:
https://fotosakademia.hu/products/course/fotografia-kozephaladoknak-haladoknak
https://oktatas.kurzusguru.hu/products/course/az-online-kurzuskeszites-alapjai
From a mail app or similar, when opening a webpage in Safari as an external browser, JavaScript on the webpage stops running if Safari goes into the background. Is there a way to prevent this from happening?
Sample code for the counter:
Behavior: Upon returning from the background, the counter continues for about 7-8 seconds but does not progress further.
For example, if Safari is kept in the background for about 20 seconds and then brought back, the counter stops at around 7-8 seconds and only resumes counting after returning to the foreground.
Expectation: The counter should continue running even if Safari goes into the background.
Hi Apple engineers!
We are making an iOS browser and are planing to deliver a feature that allows enterprise customers to use a MAM key to set a PAC file for proxy. It's designed to support unmanaged device so the MDM based solutions like 'Global HTTP Proxy MDM payload' or 'Per-App VPN' simply don't work.
After doing some research we found that with WKWebView, the only framework allowed on iOS for web browsing, there's no API for programmatically setting proxy. The closes API is the WKURLSchemeHandler, but it's for data management not network request interception, in other word it can not be used to handle HTTP/HTTPS request well.
When we go from the web-view level to the app level, it seems there's no API to let an app set proxy for itself at an app-level, the closest API is Per-App VPN but as mentioned above, Per-App VPN is only available for managed device so we can't use that as well.
Eventually we go to the system level, and try to use Network Extension, but there's still obstacles. It seems Network Extension doesn't directly provide a way to write system proxy. In order to archive that, we may have to use Packet Tunnel Provider in destination IP mode and create a local VPN server to loop back the network traffic and do the proxy stuff in that server. In other word, the custom VPN protocol is 'forward directly without encryption'. This approach looks viable as we see some of the network analysis tools use this approach, but still I'd like to ask is this against App Store Review Guidelines?
If the above approach with Network Extension is not against App Store Review Guidelines, I have a further question that, what is the NEProxySettings of NETunnelNetworkSettings for? Is it the proxy which proxies the VPN traffic (in order to hide source IP from VPN provider) or it is the proxy to use after network traffic goes into the virtual private network?
If none of the above is considered recommended, what is the recommended way to programmatically set proxy on WKWebView on an unmanaged device (regardless of where the proxy runs, web-view/app/system)?
I'm working on a web browser App that's distributed via the App Store. This app renders web pages using WKWebView.
Our users are requesting a way for us to allow them to play videos in Picture in Picture. After some investigation, we noticed that in order to allow PiP videos in our browser in the sandboxed environment, we need to add the com.apple.PIPAgent entitlement under the com.apple.security.temporary-exception.mach-lookup.global-name option.
We tried to submit our app with this entitlement, but unfortunately, we were rejected:
Guideline 2.4.50) - Performance
We've determined that one or more temporary entitlement exceptions requested for this app are not appropriate and will not be granted:
com.apple.security.temporary-exception.mach-lookup.global-name
com.apple.P|PAgent
We would like to have access to this entitlement so we can offer PiP to our users.
We already created a radar about this as well: FB13814428
Additionally, we have another radar (FB13557716) regarding allowing the usage of a private flag _allowsPictureInPictureMediaPlayback, which would also be required to enable us to use PiP.
Is there any way in which we can currently enable PiP? Would opening a TSI help here?
I’m experiencing a crash in WKWebView on iOS 26 Developer Beta 5 and Beta 6 with the following exception:
CALayer position contains NaN: [nan 65]
The crash occurs when the following CSS properties are applied to content displayed in WKWebView:
-webkit-user-select: none;
-webkit-touch-callout: none;
This issue happens consistently whenever these styles are set, leading to the crash inside WKWebView.
Is this a known bug in the current iOS 26 betas, or is there a recommended workaround?
Hi, We are facing a major issue with our application. We are using FolioReaderkit to read epub files. Currently, it's working on the iOS 18.1 device and simulator, but it's not working on the iOS 18.2 and later version devices.
we are facing this error in Folioreaderkit
The passkey authentication dialog appears, and after unlocking with Touch ID, the dialog closes without any notification of success or failure.
This issue occurs with high frequency.
access to the https://passkeys-demo.appspot.com/
register account and create passkey.
logoff
access to the url again
you can see the passkey dialog
unlock device then the dialog disappears
nothing happens
reload the page
proceed 5) to 6)
nothing happens or success webauthn.
Topic:
Safari & Web
SubTopic:
General
Tags:
WebKit JS
WebKit
Safari and Web
Passkeys in iCloud Keychain
The crash is specific to iOS 26.2 WKScriptMessageHandler delegate func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage)
Name attribute is accessible but WKScriptMessage body attribute causes crash
The object seems to be not accessible
Trying to implement my own forward/back buttons for the new SwiftUI WebView and reading the documentation I’m totally lost.
What’s the recommended way of implementing forward/back behavior with this component?
iPadOS 26, dark mode
Open Safari
Search for anything or open a website that has white background
Kill Safari
Open Safari again
I still can reproduce it with Safari on iPadOS 26.0.1
This issue also happens to my app when opening a HTML/JS on WKWebView with white background while using dark mode. I did send a feedback ticket when using iPadOS 26 beta but havent seen any reply. This is my first time sending a feedback so I dont know if Apple would reply or not.
Since iOS 18.1 launched as a beta, we've been getting reports from end users on iPhone 15 Pro and iPhone 15 Pro Max specifically. They're reporting that our WebView is unable to load our local HTML content. I'm curious if anyone else has had their app or users run into this issue?
So far I've tried installing the most recent XCode Beta 16B5014f and installed an 18.1 emulator, but our app worked fine. It's also working fine on all my real devices, but we don't have a 15 Pro to test on. I'm curious if this is related to the processor on these devices and how they are intended to support Apple's new AI coming in 18.1.
I am trying to setup web sign in with apple, I have an active apple subscription and have set up all necessary things. I made a service id in apple Identifiers, connected to existing primary id (also has apple sign in enabled). I have my domain set up also correctly but still I cant generate the code due to invalid client. What do I need to do?
I have also tried recreating the service ids multiple times with no luck.
my init is
AppleID.auth.init({
clientId : '[CLIENT_ID]',//used the service id one not app id
redirectURI : '[REDIRECT_URI]',
usePopup : true
});
link to generate codes now is: https://appleid.apple.com/auth/authorize?client_id=com.crmtournest.sigin&redirect_uri=https%3A%2F%2Fwww.tournestcrm.com%2Fauth%2Fcallback&response_type=code%20id_token&state=saciy7rn1km&scope=name%20email&response_mode=web_message&frame_id=03487c22-abb4-48cd-8613-d6bf5836e9eb&m=11&v=1.5.5
Also tried: https://appleid.apple.com/auth/authorize?client_id=com.crmtournest.sigin&redirect_uri=https%3A%2F%2Fwww.tournestcrm.com%2Fauth%2Fcallback&response_type=code%20id_token (not working)
I get invalid_client
setup on apple below:
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.
Hi,
I have an app that uses WKWebView and it's crashing on iOS 26 Simulator in places I've never had problems before. In this case it's crashing when calling WKWebView.callAsyncJavaScript, but in my other project WKWebView is crashing with some sort of EXC_BAD_ACCESS other than callAsyncJavaScript.
Am I missing something?
Thanks,
Topic:
Safari & Web
SubTopic:
General