hi, I'm having an issue with Safari devlop menu "Web Extension Background Content" menu item being grayed out. I cant do any debugging right now and its becoming mission critical for us. Any help is appreciated. Thank you,

Hi, we are experiencing a strange issue with our Web App. Our web app runs entirely on the same domain , and we are making several AJAX requests to the same server. The Error occurs only on Iphones, the app works completely fine on androids and computers. Most of the requests work fine, but suddenly, one specific request always fails with the following error: XMLHttpRequest cannot load https://demo2.artios.cz/app37g/v105/php/endpoint.php due to access control checks What we have checked so far: ✅ CORS headers seem correct. Also we operate entirely on the same domain, client and server. ✅ The same request works fine in computer and android devices. ✅ The issue occurs only on iPhone (tested on Chrome and Safari). ✅ Some requests to the same endpoint pass, but suddenly, this specific request always fails. ✅ There is no OPTIONS preflight request logged in the network tab, but we use only simple requests. ✅ We are making a POST request with multipart/form-data. What is Your advice, or where I can find more info about this error? We do not think the CORS is the problem. We have tried to inspect with WebInspector but with no relevant answers. Thank You very much!

Update: turns out the testphone with iOS 18 was set to 'Do not disturb'. Case closed. Hi all, I created a progressive web app. I is hosted on an actual live domain, served over https. When installed on an iPhone homescreen on iOS 17.7.2, sending web push notifications works fine: the response from the push service endpoint has a status code of 201, indicating all is good. In the service worker of the PWA, an eventlistener for the 'push' event is trigggered and displays an OS notification. On iOS18.0 however, even though the response from the push service endpoint has a status code of 201, there is no notification showing. Even though permission has been granted, and registration.pushManager.subscribe() is successful. When working locally, I've setup my server to run on localhost in https mode as well by following this excellent Technical Note to setup my own Certificate Authority, have it be trusted by my iOS test devices and have the CA issue a certificate so TLS can be set up. On this locally running https server, web push notifications do arrive for iOS 17.7.2, but also not for iOS18.0. I'm not sure how to start debugging this, as I can't seem to get the webinspector to show for the service worker most times, and when I can, there is no console.log() output visible. This still stands: So really, I'm looking for a (reliable) way to be able to debug this issues in safari, or find some documentation on what changed for Safari on iOS 18 that requires changes. Any help or thoughts on this matter?

My website is using a lot of memory. JavaScript Allocations Timeline shows that js occupies 130MB. However, instruments show that the overall memory usage of webview reaches 480MB. I would like to know if there is any tool to analyze the distribution of this 480MB of memory usage.

I have a hybrid mobile app which loads web server screens in its iframe(which is under the WKWebView); an https request is initiated from the mobile app to the web server which returns the html page to be loaded in the iframe. The calls which are initiated from outside the iframe have cookies maintained in their requests, while the ones initiated from inside the iframe(web server page) loose the cookies and do not inherit them in IOS beta 18 while It worked fine in the previous IOS versions. Anybody has infos about this or similar cases?

If you create a cookie and add to the WKWebViewConfiguration the completionHandler returns 'Cookies synced' suggesting cookie was added with success. However, upon inspection of app in Safari the cookie is not there. This is broken in iOS 18 beta and works in previous versions without issue. Did Apple change the WKWebView API and break this feature? code snippet: NSDictionary* settings = self.commandDelegate.settings; WKWebViewConfiguration* configuration = [self createConfigurationFromSettings:settings]; configuration.userContentController = userContentController; NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary]; [cookieProperties setObject:@"foo" forKey:NSHTTPCookieName]; [cookieProperties setObject:@"bar" forKey:NSHTTPCookieValue]; [cookieProperties setObject:@"mydomain.com" forKey:NSHTTPCookieDomain]; [cookieProperties setObject:@"mydomain.com" forKey:NSHTTPCookieOriginURL]; [cookieProperties setObject:@"/" forKey:NSHTTPCookiePath]; NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:cookieProperties]; [configuration.websiteDataStore.httpCookieStore setCookie:cookie completionHandler:^{NSLog(@"Cookies synced");}]; WKWebView* wkWebView = [[WKWebView alloc] initWithFrame:self.engineWebView.frame configuration:configuration];

When we activate the developer options and right-click to select "Inspect," then navigate to the Network tab, we can view the request entries. However, upon clicking on an entry, I can see the headers, cookies, and other details, but one crucial aspect is absent: the request and response data. This seems like a fundamental feature—why is it missing? 🤔

Problem Details : In the case of iOS, the image to be displayed in the pop-up message within the TypeScript application does not appear during file download. An error occurred trying to load the resource when attempting to fetch the image (in the case of Safari). The image does not appear in Edge or Chrome either, besides Safari. The image is displayed correctly on Windows 10, 11, Mac Ventura, Mac Sonoma, and Android. Neither svg format nor png format images are displayed. Only in the case of iOS, a download modal appears in Safari (In Edge and Chrome, a different display asking whether or not to download appears, which is different from the modal). The issue only occurs when the download modal display and the image fetching for the pop-up are conducted simultaneously. If you delay the display of the download modal from the timing of fetching the image for the pop-up (apply a wait), the image can be fetched. Verification Environment: iOS v.17.5.1 Safari 604.1 iOS v.17.3 Safari 604.1 IOS v.17.4.1 Chrome 126.0.6478.54 IOS v.17.4.1 Edge: 125.0.2535.72 Consideration and Request: Based on the problem details, I am considering that this issue might be a bug in iOS. I would like to know from experts whether this event is a bug or a specification of iOS. If there is any information about similar events occurring, I would like to know. If there are any solutions, hints, or advice, I would appreciate it if you could provide them. If additional information is required from me, I would like to be contacted. Thank you for your cooperation.

Issue Summary: I have encountered an issue where JavaScript does not execute in a WebView when another UIViewController is presented modally with modalPresentationStyle.fullScreen. This problem only occurs on physical devices running iOS 17.5.1. The issue is not present on iOS 17.5 simulators or devices running iOS 17.4.1 or earlier. Reproduction Steps: Create a ViewController with a WebView. Load a web page (e.g., https://apple.com) in the WebView. Present another ViewController modally with modalPresentationStyle.fullScreen. Verify that JavaScript execution in the initial WebView stops working. Test Code: import UIKit import WebKit class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Set up the WebView let configuration = WKWebViewConfiguration() let webView = WKWebView(frame: view.frame, configuration: configuration) view.addSubview(webView) webView.frame = view.frame if #available(iOS 16.4, *) { webView.isInspectable = true } else { // Fallback on earlier versions } webView.load(URLRequest(url: URL(string: "https://apple.com")!)) } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) let navigationController = UINavigationController(rootViewController: TargetViewController()) navigationController.modalPresentationStyle = .fullScreen present(navigationController, animated: true) } } class TargetViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() // Set up the WebView let webView = WKWebView(frame: view.frame, configuration: WKWebViewConfiguration()) view.addSubview(webView) webView.frame = view.frame if #available(iOS 16.4, *) { webView.isInspectable = true } else { // Fallback on earlier versions } webView.load(URLRequest(url: URL(string: "https://apple.com")!)) } } Observations: The JavaScript within the WebView stops executing only on physical devices running iOS 17.5.1. This issue does not occur on the iOS 17.5 simulator. Devices running iOS 17.4.1 or earlier do not experience this issue. Request for Assistance: Could you please provide any insights or potential workarounds for this issue? Additionally, if this is a known bug, any information on upcoming fixes would be highly appreciated. Thank you.

M1 Air, Sonoma., Books.app. How to open an inspector? old method defaults write com.apple.iBooksX WebKitDeveloperExtras -bool YES doesn't work

On ios15, when loading a page, occasionally all resources under a domain name cannot be loaded. the code like this: <html><head> <title>issue page</title> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"> </style></head> <body><div> <script type="text/javascript" src="https://wx.qq.com/open/js/jweixin-1.6.0.js"></script> <script type="text/javascript" src="https://wap.xxxx.com/static/webapp/common_res/3rd/jquery-3.6.2.min.js"></script> <script type="text/javascript" src="https://statres.ok.com/quickapp/js/qa_router.min.js"></script> <script type="text/javascript" src="https://wap.xxxx.com/static/webapp/common_res/js/utils.min.js"></script> </div></html> This is a simplified page code. The problem is that the page cannot be loaded. Resources under wx.qq.com and statres.ok.com can be loaded, but all resources under wap.xxxx.com fail to be loaded. (Debugging via safari) wkwebview did not call back to didFinishNavigation, and the page load progress was stuck at 0.5. And then it didn't go out of time. It just stayed there. Here are some of the solutions I tried: 1、At first I thought it was a resource problem, but everything worked fine when I copied it to safari. In addition, most of the time in my page is fine, but once this problem occurs, the page will no longer load out until I restart the app. 2、thought is to cache problem, repetition, I added NSURLRequestReloadIgnoringLocalCacheData, also was not used. 3、 I captured the system logs through idevicesyslog and found no obvious anomalies in webkit. 4、When I used wireshark to find the problem, wap.xxxx.com did not even initiate dns requests, as if the browser ignored the resource.（Normally, I caught the dns request for this page） Please help me divergent ideas, thank you!

I've been having a hard time getting WebXR testing working in VisionOS. I had Ventura and installed VisionOS 1.0 and video crashed launching to WebXR. To get 1.1 I did alot of jumps to get XCode 15.3 beta and VisionOS 1.1 requiring to also upgrade to macOS Sonoma. In Ventura I was able to web inspect Safari in VisionOS 1.0 but in Sonoma, and VisionOS 1.1 I get "No Inspectable Applications" I have tried Safari and Preview Safari.