Dear Apple Developer Support Team,
I am writing regarding critical issues we are facing with Safari web push notifications in our application iLiveMyLife.io, which is severely impacting our ability to maintain reliable communication with our users.
Issue Description:
We are experiencing persistent problems with Safari push notification tokens expiring or becoming invalid without any notification to our server. This creates several critical issues:
Users stop receiving notifications without any indication of failure
Our notification delivery system has no way to detect token expiration
The expiration appears to happen frequently (seemingly almost daily in some cases)
There is no reliable mechanism to re-establish push communication without users manually revisiting the app
Technical Impact:
Our messaging functionality becomes completely unreliable
We must resort to email or SMS as fallback mechanisms, which is not feasible for a real-time communication platform
This makes building any reliable messaging application on Safari practically impossible
The Broader Context:
What makes this situation particularly challenging is that all potential alternative browser APIs that could help address this issue appear to be deliberately disabled or restricted in Safari:
Background Service Workers don't function in the background on iOS Safari
Background Sync API is not supported
WebSockets cannot operate when the app is closed
There's no way to programmatically check the validity of push tokens
The combination of these limitations creates a situation where developers have no viable technical path to build reliable notification systems for PWAs on Safari. This appears to be a systematic restriction rather than individual API limitations.
Requested Information:
Is there a recommended approach to detect Safari push token expiration?
Are there alternative notification mechanisms for PWA applications on Safari that offer more reliability?
Is there documentation on the lifecycle of Safari push tokens that could help us implement proper handling?
Are there plans to improve the Web Push API implementation in Safari to address these reliability issues?
Could you clarify if these limitations are intentional design decisions or technical constraints that might be addressed in future updates?
Business Impact:
This issue fundamentally undermines our platform's core functionality. For a collaborative tool, reliable notifications are essential - users cannot collaborate effectively if they miss updates because their push tokens silently expired. The current state creates confusion among our users, who don't understand why they suddenly stop receiving notifications.
Any guidance or assistance you could provide would be greatly appreciated. We're committed to providing an excellent experience on Safari, but the current push notification limitations make this extremely challenging.
Thank you for your time and consideration.
Best regards,
Ilya
General
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Scenario Overview:
In our app, we open an in-app browser to complete a third-party consent flow. The sequence is:
App → Website A (set cookie and redirect) → Google → Website A (check cookie) → App
After upgrading the app, the first consent attempt fails because the cookie cannot be written, causing the check cookie step to fail. However, if we use the native Safari browser, this issue does not occur.
Observed Behavior:
Scenario
Result
Upgrade app → Consent
❌ Fail
Upgrade app → Consent fail → Consent again immediately
✅ Pass
Upgrade app → Consent fail → Upgrade again after 1–2h → Consent
✅ Pass
Upgrade app → Consent fail → Upgrade again after 1d → Consent
❌ Fail
Install a new app → Consent
✅ Pass
Upgrade app → Consent, cancel flow → Consent again
✅ Pass
Install new app → Wait for upgrade → Upgrade app → Consent
✅ Pass
Install new app → Wait 1–2h → Upgrade app → Consent
✅ Pass
Investigation:
From Safari documentation, this seems related to Intelligent Tracking Prevention (ITP), which restricts cross-site cookie behavior during first-party interactions. However, I haven’t found a clear mitigation strategy yet.
Question:
Has anyone encountered similar issues with Safari ITP after app upgrades? Are there recommended approaches to ensure cookies persist across this redirect flow?
Topic:
Safari & Web
SubTopic:
General
I am following up on Thread (https://developer.apple.com/forums/thread/733233). Currently, SFSafariExtensionManager.getStateOfSafariExtension only returns if an extension is enabled, but not if "Allow in Private Browsing" is toggled on.
Is there an API in macOS 26 and Safari 19 that allows a native Safari App Extension to detect this specific permission?
Is iOS WebRTC communication via WebView stable when the app is in the background?
I'm implementing SIP communication using JsSIP within a WebView. On iOS, I'm using WKWebView, but I'm concerned that its resources may be limited by the system when the app is backgrounded. Even with the VoIP background mode declared in the Info.plist file, will the system preserve sufficient resources to keep the SIP communication active?
I’m encountering an issue on iOS when rendering a list using React.
Each list item uses the array index as the React key and consists of two parts:
a header section that uses position: sticky for dynamic sticking behavior, and
a body section whose height is automatically adjusted based on its content.
When the list data is updated, I sometimes observe that the sticky header content does not update visually in time, even though the underlying data and DOM have changed.
// demo.jsx
import React, { useState } from 'react';
import { Button } from '@iftide/mobile';
import './style2.less';
// import data1 from './data1.json';
// import data2 from './data2.json';
const prefixCls = 'im-detaillist';
const data1 = [
{
sectionTitle: '2025年05月'
},
{
sectionTitle: '2025年04月'
},
{
sectionTitle: '2025年03月'
}
];
const data2 = [
{
sectionTitle: '2023年08月'
},
{
sectionTitle: '2023年07月'
},
{
sectionTitle: '2023年06月'
},
{
sectionTitle: '2023年05月'
}
];
export default function App() {
const [list, setList] = useState(data1);
const [toggle, setToggle] = useState(true);
return (
<div>
<Button
title="更新2"
onClick={() => {
setToggle(!toggle);
setList(data2);
}}
/>
<div className={`${prefixCls}-container2`} style={{ height: `700px` }}>
{list.map((section: any, sectionIdx: number) => {
return (
<div
className={`${prefixCls}`}
key={String(sectionIdx)}
// id={section.sectionTitle}
>
<div className={`${prefixCls}-section-title`} role="text">
{section.sectionTitle}
</div>
<div
style={{
background: 'green',
height: `${Math.ceil(400 * Math.random()) + 50}px`
}}
>
省略
</div>
</div>
);
})}
</div>
</div>
);
}
.@{prefixCls}-section-title {
position: sticky;
position: -webkit-sticky;
will-change: transform;
top: 0;
z-index: 1;
padding-left: 11px;
width: 100%;
height: 30px;
font-size: var(--font-size-s);
font-weight: 400;
line-height: 30px;
color: #000000;
background-color: #F4F5F7;
letter-spacing: 0;
}
I coded two demo websites as follows (both written in NextJS):
Website 1: I coded an interval counter that increments every 1 second.
Website 2: I used the MediaRecorder API (described in the WebKit documentation: https://webkit.org/blog/11353/mediarecorder-api/).
In the ondataavailable function, I periodically send a blob (once every 1 second) to my server. In the backend, I coded a POST API to upload this blob.
I noticed that with website 1, the interval doesn't work when I run Safari in the background, even on iOS and iPadOS. However, website 2 works, meaning it still calls my API normally (I tried running Safari in the background for about 1-2 hours and it worked).
So, does this mean Apple allows native APIs like MediaRecorder and its callbacks to run in the background?
In my application, I use HTML pages to display the interface. Since it’s a cross-platform app, the pages and interactions work properly on other platforms. However, in WebKit, because HTTPS protocol is used, JS requests from the page cannot use the ws protocol but must use the wss protocol under HTTPS. Is there any way to allow a webpage under HTTPS to use ws requests normally? Google Chrome can do this.
Topic:
Safari & Web
SubTopic:
General
Hello, why is Safari blocking my domains? https://fitgel.ru https://fittoma.ru https://ohota.pro There are no errors in them, other browsers respond normally.
Topic:
Safari & Web
SubTopic:
General
Hello
We've encountered an issue with WKWebView in the latest iOS 26 beta. When loading a PDF URL, the background of the PDF viewer now displays as a dark gray instead of the expected white.
Device: iOS 26 Simulator/Device
Component: WKWebView
Issue: The background color of the loaded PDF is gray.
Expected Behavior: The background should be white, as it has been in all previous iOS versions.
Link for Testing: https://help.apple.com/pdf/security/en_US/apple-platform-security-guide.pdf
We confirmed that the same PDF and code render with a white background on iOS 26 and earlier.
Questions:
Is this an intentional change in iOS 26's WKWebView?
If so, is there a new property or configuration setting available to control the background color of the PDF viewer within WKWebView? We would like to have the ability to set it back to white.
Any insights, workarounds, or information on this matter would be greatly appreciated.
Thank you.
After reading several posts I see that I need to add the "com.apple.developer.web-browser.public-key-credential" capability to my macOS app in order to get it to work.
So my noob question is where do I request this capability? Can I as a developer request it or does the Account owner need to request it?
Once approved, how do I add it to my app's capabilities?
Thanks for your patience
Hello from Leipzig, Germany!
I noticed that when vertically scrolling in Safari 26 on my Mac, the content of the website I am currently working on is visible in the tab and URL bar with a liquid glass effect. I then looked at various other websites. Some websites have an opaque top bar. Some websites have a transparent top bar where content is visible when scrolling. On the Apple website, the top bar is opaque in light mode but transparent in dark mode. Unfortunately, I can't find a way to control this behavior. Has anyone found out more about this?
I'm trying to use DNR to force safe search with Qwant search engine.
Under certain circumstances (scenario described below) the search is performed with an API which contains the safe search level in a URL parameter. A typical query URL is https://api.qwant.com/v3/search/web?q=test&count=10&locale=fr_FR&offset=0&device=desktop&tgp=1&safesearch=0&displayed=true&llm=true.
I want a DNR rule to force safesearch to be 2 (= strict) (from some javascript code) :
{
id: 1,
priority: 1,
action: {
type: 'redirect',
"redirect": {
"transform": {
"queryTransform": {
"addOrReplaceParams": [{ "key": "safesearch", "value": "2" }]
}
}
}
},
condition: { "urlFilter": "api.qwant.com/v3/search", "resourceTypes": ["xmlhttprequest"] },
}
When this rule is activated, I end up with a URL with the original safesearch parameter AND the forced one : https://api.qwant.com/v3/search/web?q=test&count=10&locale=fr_FR&offset=0&device=desktop&tgp=1&safesearch=0&displayed=true&llm=true&safesearch=2.
To reproduce this request (with the previous DNR rule in place) :
navigate to https://www.qwant.com
search for some string (test in my case). This displays the list of results ;
click the engine button at the top right to display the settings pane ;
inspect network request performed by this page ;
change the Adult filter in the list -> the results are automatically updated with the new settings. The web request shows URL with the 2 safesearch parameters.
I already used addOrReplaceParams in 'standard' contexts (main_frame) and it works just fine. Any hint on what goes on ?
Thank you.
Hello,
I am developing a website which starts a web worker using the js code:
const zarrWorker = new Worker('./zarr_file.js', { type: 'module' });.
The script 'zarr_file.js' is served from the same origin with Cross-Origin-Embedder-Policy: require-corp and Cross-Origin-Opener-Policy: same-origin and it is importing external modules through the import statement (e.g. import * as zarr from "https://cdn.jsdelivr.net/npm/zarrita/+esm";).
All the external modules are blocked by Safari with the error Worker load was blocked by Cross-Origin-Embedder-Policy, although I can see (by running curl on them) that they correctly set cross-origin-resource-policy: cross-origin`.
The same website works fine in Chrome and Firefox.
Is it a bug or is Safari implementing stricter policies? In the latter case what would be the solution?
Hi Team,
I'm using the simple mailto functionality in the demo page and when I tested the same via Safari mailto functionality is not working.
However, the same feature is working as expected via Chrome.
Demo: https://jsfiddle.net/xut0ed4y/
Kindly help.me to resolve this issue.
We are experiencing a compatibility issue with our hybrid app related to the recent update in iPadOS 18.4, specifically concerning HTTPS connections.
What are the key changes introduced in iPadOS 18.4 regarding HTTPS connections? Our app previously managed to bypass the DigitalSignature key usage missing error in the self-signed server certificate within the didReceiveAuthenticationChallenge method, as documented here: https://developer.apple.com/documentation/webkit/wknavigationdelegate/webview(_:didreceive:completionhandler:) . However, since the update to iPadOS 18.4, this method is no longer being called, resulting in direct failure of HTTPS connections.
We are using cordova-ios 7.1.
Thanks in advance for your help.
updateDynamic rules is blocking ads on my device with iOS 17.4, but on my iOS 18 device the same code is not blocking ads.
Is this a known issue?
We are encountering an issue where the Safari extension we are developing stops working while in use on relatively new iOS versions (confirmed on 17.5.1, 17.6.1, and 18). Upon checking the Safari console, the content script is displayed in the extension script, so the background script or Service Worker must be stopping. The time until it stops is about 1 minute on 17.5.1 and about one day on 17.6.1 or 18.
When it stops, we would like to find a way to restart the Service Worker from the extension side, but we have not found a method to do so yet. To restart the extension, the user needs to turn off the corresponding extension in the iPhone settings and then turn it back on.
As mentioned in the following thread, it is written that the above bug was fixed in 17.6, but we recognize that it has not been fixed. https://forums.developer.apple.com/forums/thread/758346
On 17.5.1, adding the following process to the background script prevents it from stopping for about the same time as on 17.6 and above.
// Will be passed into runtime.onConnect for processes that are listening for the connection event
const INTERNAL_STAYALIVE_PORT = "port.connect";
// Try wake up every 9S
const INTERVAL_WAKE_UP = 9000;
// Alive port
var alivePort = null;
// Call the function at SW(service worker) start
StayAlive();
async function StayAlive() {
var wakeup = setInterval(() => {
if (alivePort == null) {
alivePort = browser.runtime.connect({ name: INTERNAL_STAYALIVE_PORT });
alivePort.onDisconnect.addListener((p) => {
alivePort = null;
});
}
if (alivePort) {
alivePort.postMessage({ content: "ping" });
}
}, INTERVAL_WAKE_UP);
}
Additionally, we considered methods to revive the Service Worker when it stops, which are listed below. None of the methods listed below resolved the issue.
①
Implemented a process to create a connection again if the return value of sendMessage is null. The determination of whether the Service Worker has stopped is made by sending a message from the content script to the background script and checking whether the message return value is null as follows.
sendMessageToBackground.js
let infoFromBackground = await browser.runtime.sendMessage(sendParam);
if (!infoFromBackground) {
// If infoFromBackground is null, Service Worker should have stopped.
browser.runtime.connect({name: 'reconnect'}); // ← reconnection process
// Sending message again
infoFromBackground = await browser.runtime.sendMessage(sendParam);
}
return infoFromBackground.message;
Background script
browser.runtime.onConnect.addListener((port) => {
if (port.name !== 'reconnect') return;
port.onMessage.addListener(async (request, sender, sendResponse) => {
sendResponse({
response: "response form background",
message: "reconnect.",
});
});
②
Verified whether the service worker could be restarted by regenerating Background.js and content.js.
sendMessageToBackground.js
export async function sendMessageToBackground(sendParam) {
let infoFromBackground = await browser.runtime.sendMessage(sendParam);
if (!infoFromBackground) {
executeContentScript(); // ← executeScript
infoFromBackground = await browser.runtime.sendMessage(sendParam);
}
return infoFromBackground.message;
}
async function executeContentScript() {
browser.webNavigation.onDOMContentLoaded.addListener((details) => {
browser.scripting.executeScript({
target: { tabId: details.tabId },
files: ["./content.js"]
});
});
}
However, browser.webNavigation.onDOMContentLoaded.addListener was not executed due to the following error.
@webkit-masked-url://hidden/:2:58295
@webkit-masked-url://hidden/:2:58539
@webkit-masked-url://hidden/:2:58539
③
Verify that ServiceWorker restarts by updating ContentScripts
async function updateContentScripts() {
try {
const scripts = await browser.scripting.getRegisteredContentScripts();
const scriptIds = scripts.map(script => script.id);
await browser.scripting.updateContentScripts(scriptIds);//update content
} catch (e) {
await errorLogger(e.stack);
}
}
However, scripting.getRegisteredContentScripts was not executed due to the same error as in 2.
@webkit-masked-url://hidden/:2:58359
@webkit-masked-url://hidden/:2:58456
@webkit-masked-url://hidden/:2:58456
@webkit-masked-url://hidden/:2:58549
@webkit-masked-url://hidden/:2:58549
These are the methods we have considered. If anyone knows a solution, please let us know.
Hello!
While working with the new Apple Pay SDK for iOS 18, I encountered a bug. When using the Ukrainian language, in the modal displaying the QR code, I noticed that there is a missing bracket for the year variable. This causes incorrect data to be displayed in the QR code.
This seems to be a localization issue specifically with the Ukrainian language in the new SDK, as the bug does not occur with other languages like English.
Has anyone else experienced this? Any advice or information on this bug would be appreciated.
Thanks!
Our app is an enterprise app via MDM.
We are experiencing an issue in iPadOS 18.4 when loading an internal HTTPS server via WKWebView in a hybrid iOS app.
Our server uses a self-signed certificate but lacks the digitalSignature usage in its Key Usage extension. (Currently we have no chance to change the server's certificate)
We override webView:didReceiveAuthenticationChallenge:completionHandler: to trust the certificate:
completionHandler(NSURLSessionAuthChallengeUseCredential, credential);
This "completionHandler" works in previous 18.3.2 , but not work in 18.4. May I know is there any changes in 18.4 for the https certification? Why this delegate not work? What we can do to ignore this ssl error and get connection?
Thanks in advance, look forward for your reply.
window.location.href = "tel:02-xxxx-xxxx"
Can the development team modify the screen text? Or can the country code be erased?
What are the reasons for continuing to be "on the phone" if the country code is automatically attached to the phone like this?
Topic:
Safari & Web
SubTopic:
General