As of IOS 18.3, there browser.tabs.create methods active property which is supposed to determine whether a tab get open in the active window or not is not working as it should. I have the active property set to false but the tab still gets opened and is active on the window. Tested on older ios versions 18.2 and below and it works as it should.
please advise
Explore the integration of web technologies within your app. Discuss building web-based apps, leveraging Safari functionalities, and integrating with web services.
Selecting any option will automatically load the page
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We are seeing an issue in Safari on iOS 26 where the a automatic unfocus of on select box dismisses the second one.
<select name="choice1" onblur="console.log('onblur1');" onfocus="console.log('onfocus1');">
<option value="first">First Value</option>
<option value="second" selected>Second Value</option>
<option value="third">Third Value</option>
</select>
<select name="choice2" onblur="console.log('onblur2');" onfocus="console.log('onfocus2')">
<option value="first">First Value</option>
<option value="second" selected>Second Value</option>
<option value="third">Third Value</option>
</select>
select something in choice1.
quickly tap choice2 before onblur1 is logged.
At the timing of onblur1 the selection menu for choice2 is dismissed.
Anyone know how to fix this behavior?
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.
I have observed Safari App starts crashing when running with my safari extension.
Our Safari extension polls the host app every 60s. The extension receives and completes requests in
func beginRequest(with context: NSExtensionContext)
(we always call context.completeRequest(...)). The crash is intermittent: beginRequest itself does not throw.
Looking for guidance about likely causes. I am attaching the snippet from crash report.
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGKILL)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Termination Reason: Namespace RUNNINGBOARD, Code 3490524077
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x1856f5c34 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x1857083a0 mach_msg2_internal + 76
2 libsystem_kernel.dylib 0x1856fe764 mach_msg_overwrite + 484
3 libsystem_kernel.dylib 0x1856f5fa8 mach_msg + 24
4 CoreFoundation 0x185822cbc __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x1858215d8 __CFRunLoopRun + 1208
6 CoreFoundation 0x185820a98 CFRunLoopRunSpecific + 572
7 HIToolbox 0x1912c327c RunCurrentEventLoopInMode + 324
8 HIToolbox 0x1912c64e8 ReceiveNextEventCommon + 676
9 HIToolbox 0x191451484 _BlockUntilNextEventMatchingListInModeWithFilter + 76
10 AppKit 0x189745a34 _DPSNextEvent + 684
11 AppKit 0x18a0e4940 -[NSApplication(NSEventRouting) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 688
12 Safari 0x1b801cce4 -[BrowserApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 228
13 AppKit 0x189738be4 -[NSApplication run] + 480
14 AppKit 0x18970f2dc NSApplicationMain + 880
15 Safari 0x1b83dd0b0 SafariMain + 468
16 dyld 0x185396b98 start + 6076
Dear Apple Developer Experts,
We're experiencing an intermittent issue with WKWebView in our macOS application where local HTML file access is occasionally denied by the sandbox, despite proper implementation and permissions. We seek your guidance in understanding and resolving this issue.
Issue Description:
The WKWebView occasionally fails to load local HTML files stored in the app's Contents/Resources directory
Error occurs in WebKit Networking Process with sandbox denial
Issue is intermittent and can be resolved by app restart or WebKit Networking Process restart
Affects all local HTML files in the same directory once the issue occurs
Technical Details:
Error from Kernel Log:
2025-02-07 14:57:17.179821 +0800 kernel Sandbox: com.apple.WebKit.Networking(58661) deny(1) file-read-data /Applications/DingTalk.app/Contents/Resources/webcontent/contact-2024.html
WKWebView Delegate Error (captured in WKNavigationDelegate method):
(void)webView:(WKWebView *)webView didFailProvisionalNavigation:(WKNavigation *)navigation withError:(NSError *)error
Error Details:
Domain: NSPOSIXErrorDomain
Code: 1
Description: "Operation not permitted"
UserInfo: {
networkTaskMetricsPrivacyStance: Unknown,
_NSURLErrorFailingURLSessionTaskErrorKey: LocalDataTask <3694CA1E-481B-4E06-975D-E3A56AD56C0F>.<1>,
_kCFStreamErrorDomainKey: 1,
_kCFStreamErrorCodeKey: 1
}
Key Observations:
Error is captured in WKNavigationDelegate's didFailProvisionalNavigation method
The issue affects all local HTML files in the same directory once it occurs
Temporary workarounds we've discovered:
Restarting the application completely resolves the issue
Without restarting the application, terminating the "WebKit Networking Process" via Activity Monitor causes the process to automatically restart, and this resolves the issue and load works again
Additional Information:
We've collected complete system diagnostics (system_logs.logarchive) at the time of failure
The issue appears similar to discussions in Apple Developer Forums (https://developer.apple.com/forums/thread/110072), though we're uncertain if it's the same root cause
We've prepared a minimal demo project demonstrating:
Our release version app can be downloaded from: https://dtapp-pub.dingtalk.com/dingtalk-desktop/mac_dmg/Release/M1-Beta/DingTalk_v7.6.45_43521682_universal.dmg?spm=0.0.0.0.UuwovG&file=DingTalk_v7.6.45_43521682_universal.dmg for examining our app's codesign, sandbox, and entitlements configurations if needed
Important Investigation Finding:
We attempted to simulate the issue by using chmod 000 /path/to/test.html, but this produces a different error:
CopyError Domain=NSURLErrorDomain
Code=-1102
Description="You do not have permission to access the requested resource."
UserInfo={
NSLocalizedDescription=You do not have permission to access the requested resource.,
NSErrorFailingURLStringKey=file:///Users/sunus/Library/Developer/Xcode/DerivedData/WKWebViewLocalDemo-eumardnlfbmwgnhkaadglsrrhzhs/Build/Products/Debug/WKWebViewLocalDemo.app/Contents/Resources/test.html,
NSUnderlyingError=0x600003aedc50 {Error Domain=kCFErrorDomainCFNetwork Code=-1102 "(null)"}
}
This error is distinctly different from our original issue's "Operation not permitted" error, suggesting that the sandbox denial we're experiencing is not a simple file permission issue.
Questions:
Is this a known issue with the WebKit sandbox in recent macOS versions?
Are there recommended best practices or workarounds to prevent this sandbox denial?
Could this be related to the WebKit Networking Process's sandbox configuration?
Are there additional diagnostics or logs we should collect to help investigate this issue?
We appreciate your assistance in investigating this issue. Please let us know if you need any additional information or clarification.
STEPS TO REPRODUCE
Open App
Then loads the local file in /WKWebViewLocalDemo.app/Contents/Resources/test.html
PS, We also submit a DTS & Feedback
DTS:Case-ID: 11876957
Feedback-ID: FB16493282
sysdiagnose is in the Feedback-ID: FB16493282 is uploaded
Hello,
We’ve been using the CesiumJS WebGL library for several years, both on our website and within embedded WebViews in our iOS application. Since upgrading to iOS versions 18.2 and 18.3, we’ve started receiving numerous user complaints regarding application crashes on various iPad and iPhone models when loading CesiumJS.
The crashes occur as soon as the 3D view initializes, and the error consistently reported is:
"WebGL context lost"
This issue appears to be a WebGL-related crash potentially triggered by GPU memory handling or allocation limits. However, we are not detecting any abnormal memory consumption prior to the crash, and the same setup works perfect on older iOS versions and on all Android devices and versions.
Steps to Reproduce:
Open: https://www.flightradar24.com/30.47,-94.84/8
Click on any aircraft icon on the map.
In the aircraft details panel at the bottom, click on the “3D view” tab.
On iOS 18.2 or 18.3, the page will crash shortly after initializing CesiumJS WebGL.
Affected Devices:
This issue is occurring across a wide range of devices, including:
iPad 9th Generation
iPad Pro (11-inch, 2nd Gen)
iPhone SE (2020 and 2022)
iPhone 11, 11 Pro
iPhone XR
iPhone Mini
All of the above are running iOS 18.2 or 18.3. The problem does not occur on Android or previous iOS versions.
Request:
Has anyone else encountered similar issues with WebGL context loss after upgrading to iOS 18.2 or 18.3? Are there any known changes in memory limits or WebGL behavior in these recent iOS updates? We’d appreciate any insight or suggestions on workarounds or potential fixes.
Thank you!
When the “Use Strong Password?” dialog appears and I select “Not Now” to manually enter my own password, the password I type is displayed in plain text instead of being masked. Since the input field is of type="password", the entered characters should be hidden as is standard for password inputs.
Is there a way to prevent this behavior and ensure that the password is properly hidden even after dismissing the strong password suggestion dialog?
Topic:
Safari & Web
SubTopic:
General
On iOS 18 only, I've been getting this error from the didFailToContinueUserActivityWithType in AppDelegate, the activity needed for universal links. It didn't happen on previous versions of it.
Has anyone encountered this ?
Since Safari requires a macOS app as a container for Web Extensions, is there a way to establish native messaging directly from SafariWebExtensionHandler using stdin/stdout? Or does Safari enforce a different communication mechanism?
I’d like to keep the same approach as other browsers.
Any guidance on making this work would be appreciated!
How to handle it? regular downloads I already go working through Navigation and download delegates
On an older iPhone I'm testing with (6s, iOS 12.5.7), connected to the same Sandbox Apple ID that I'm using on multiple other devices, the Apple Pay button is not appearing. Neither on my web application, whatever version I set in the PaymentRequest, nor on the official demo site.
Further, 2 sandbox cards that were added fine to these other devices are failing to add on this one. Same cards and CVV codes are getting errors. At least "Invalid Card" on one of them. Although the other failed several times, then just worked this time when I tried it again :confused:
But on this phone, I have two cards successfully added, so the button should be appearing. On the demo site, whether I select Apple Pay JS API or Payment Request API, the button does not appear.
Bug Report:
Safari refuses to render content that is position: fixed or position: sticky if it goes below the iOS 26 navigation controls at the bottom of the browser. Since the controls are transparent and floating, this is a problem as fixed content is effectively unable to reach the bottom of the page. Attempting to move it below 100vh causes it to be cut off rather than rendering behind the navigation elements.
Here is some code reproducing the issue:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
html,
body {
margin: 0;
padding: 0;
background-color: #363636;
}
#just-a-bird {
position: fixed;
bottom: -100px;
width: 300px;
height: auto;
background: red;
}
</style>
</head>
<body>
<img id="just-a-bird"
src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e1/Cattle_tyrant_%28Machetornis_rixosa%29_on_Capybara.jpg/640px-Cattle_tyrant_%28Machetornis_rixosa%29_on_Capybara.jpg">
</body>
</html>
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.
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
Hello all,
As you may know, the company ProofPoint is an Apple partner, and is engaged (I think) to reduce misuse of icloud emails.
We have two servers solely set up for our web-app, which is a specialised forum for apartment owners.
The new servers were established about the same time, with the same provider, with clean new IP addresses - and as mentioned above, are only used for this web-app.
During a testing phase a YEAR ago, we became aware that our in-house icloud emails weren't receiving notifications via the app, and further investigations revealed that the cause was that ProofPoint had placed a block on that server's IP.
We immediately, via their website form initiated a Support Ticket, which, the site indicated was lodged, BUT we have never received any response to that Ticket, nor have we received any response to four subsequent Tickets we initiated - nothing. In over a year!!
Yesterday, we contacted Apple support, but the devices area of support is the main section and they said it wasn't an issue they could assist with.
Some relevant matters:
SPF: DKIM: DMARC:
are, I believe all configured correctly (and Gmail gives a PASS to all of them).
The IP is not blacklisted by any list we are aware of.
Our other server's IP isn't blocked by ProofPoint.
So, literally at wits end, I'm reaching out to the developer subscribers here to see if they have any suggestions for us.
We currently are unable to accept any new subscriber that is using an icloud email address, and that's an absurd situation to be in.
Surely we don't have to go to the trouble and inconvenience of obtaining a new IP because of this!!! But when we can't get ANY response to the Support Tickets, it's really hard.
Thanks
Topic:
Safari & Web
SubTopic:
General
Is this symbol, which Safari uses to the left of the address bar, in the public SF Symbols set? What's it called?
The order nor -webkit-order properties of a child element of a flex parent dosen't work in Safari 18.3.
Works correctly in FireFox and Chrome.
Topic:
Safari & Web
SubTopic:
General
Hello,
I am experiencing an issue when trying to open the browser on my Apple Watch SE 2 running the latest version, watchOS 11.6. When I attempt to visit any website, the browser opens and displays the URL at the top as if it is loading, but the screen remains black and no content is displayed.
The internet connection is available, and all other apps on the watch work normally. This issue occurs only with the browser.
I would appreciate any guidance or solution to resolve this problem.
Thank you for your assistance.
Recently we started noticing in Safari v18.2 browser an unexpected useragent set for https://www.espn.com pages like -
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36" (recognized as Chrome by most UA detection logic) and breaks our video playback in some scenarios.
When digging into this we came across site specific quirks and the "Disable site-specific hacks" setting which fixed the playback functionality and set a more expected UA - "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.2 Safari/605.1.15".
Is the unexpected UA being set somewhere in Safari/Webkit? Can this be removed so site functionality works without needing to find the "Disable site-specific hacks" setting?
I recently noticed that putting the app on background for some time, then switching back to it again causes the WKWebView to reload the current page, same with just hitting f5 on it. How do we disable this behavior?