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Speech synthesis from Safari app extension
I'm making a Safari extension for learning languages. I need speech synthesis for any language the user chooses to learn. I initially tried to make this work within JavaScript, but Safari 18 doesn't reliably list voices for all languages on the web SpeechSynthesis API as described here: https://stackoverflow.com/questions/79179072/how-do-you-use-a-japanese-voice-with-speechsynthesis-in-safari-ios-18 As a workaround, I've had to use AVSpeechSynthesizer in SafariWebExtensionHandler (NSExtensionRequestHandling implementation for the extension). This works in the simulator but not on a real device. I've found this note from Apple in a StackOverflow reply: "Safari extensions are very short-lived, hence not fit for audio playback or speech synthesis. Not being able to validate an app extension in Xcode with a manually-added plist entry for background audio is the designed behavior. The general recommendation is to synthesize speech using JavaScript in conjunction with the Web Speech API." Unfortunately, the suggestion to use the Web Speech API is unsuitable as I just explained. Is there a way to set up a background process in the host app that can do speech synthesis? The app extension would need a way to communicate with this process, and start it if it's not running. Is that possible?
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601
Dec ’24
How to confidently select one type of camera on iOS
We have a web application that uses high resolution images to validate the authenticity of products. For this purpose we want to use the best camera to make the high resolution camera, on iPhone Pro devices this camera is the ultra-wide angle camera. The issue we have is how to confidently select that camera from the list returned by navigator.mediaDevices.enumerateDevices. We can't use the device ID as it change every time (and for every user), we could use the camera name but the string is translate to the device language which is very problematic. We could also just select a specific item in the list but we are not sure that the order is preserved and it makes it hard to deal with other iPhone models that don't have that ultra wide angle camera. Selecting a specific camera looks like an essential feature not only for us. What is the best option, we are looking for something that is future proof and easily scalable.
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Dec ’24
Public Contact Info
I wanted to create a public contact card so when my clients click a button on my website it traverses them through the iMessage API and instantly adds a contact card with photo and name as a background task. If there is implications my next question was going to be if there is a possible way to create a public contact card where for example I could redirect a client to iMessage and when starting a new conversation if they type in a name it pops up instead of needing to utilize a phone number? I am trying to explain my thought process as much as possible but I have been typing for hours. In simple terms is there a possibility to create a public contact card that can be accessed or texted by anyone who types in a name into new conversation bar?
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Dec ’24
MacOS's Safari use a lot of cpu on some js web page using requestAnimationFrame then chrome
It's being a very long time that I discovery that in some web pages, that use function requestAnimationFrame will cause a lot of cpu, but very little in Chrome. I have already submitted this bug nearly two years ago without printout requestAnimationFrame, no one replied. I submitted again and mention requestAnimationFrame recently, hope there will be some response. If anyone interested in this issue and know some tech in javascript please help. You can enter https://www.baidu.com/ and click one of the topic in all the 百度热搜 which have 弹幕滚动(using requestAnimationFrame, and cause a lot of cpu usage) on right.
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Dec ’24
iOS 18.2 Safari does not terminate the download thread after partial file downloads are completed
When I download specific files (not limited to a single website), even if I find that the downloaded file size matches the original file size and the downloaded file size no longer changes, Safari still does not stop the download thread, but continues to wait indefinitely. This results in the Safari not terminating the download thread even after the file download is completed, making it impossible to complete the download; The file has not been landed and cannot be obtained. This prevents me from downloading some files. Please fix this problem. In addition, I found that in iOS 18.2, during the process of downloading files on Safari, the synchronization and backup flags appear in the upper right corner of the notification bar. I am not sure if this is an unexpected behavior, but the flag still lingers for a long time after manually canceling the download thread. (the download thread is waiting indefinitely) Feedback Number: [FB16124044]
Topic: Safari & Web SubTopic: General Tags:
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1.1k
Dec ’24
WebSocket Connection Fails in Safari iOS 18.1+ when triggered from an iframe
Hello, I’m encountering a problem with WebSocket connections in Safari on iOS 18.1 and later when initiated from an iframe. The same implementation works perfectly in other browsers like Chrome but fails in Safari. In Safari, the WebSocket connection fails with error message "WebSocket connection to 'wss://MY_CONNECTION_URL' failed: The internet connection appears to be offline." Has anyone else faced this? Is this a known limitation or bug in Safari? Any workarounds or solutions would be greatly appreciated. Thank you!
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1.1k
Dec ’24
Not displaying some websites properly after iOS 18.2
After the iOS 18.2 update, I can no longer see the some website as I could see it on the desktop. ( for example Jeostok . Com)I have tried this in many browsers. For example, I get the same result in browsers such as Safari Chrome Firefox opera and edge. The home page is not displayed properly. It was displaying properly before the update and now it is not displaying properly. This website is my website. I frankly do not know how to solve this problem, if anyone knows, I am waiting for your help.
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1.1k
Dec ’24
Help with Device Orientation Permission on iPhone (iOS 18) in Safari
Hi everyone, I'm facing an issue with accessing device orientation and motion events in Safari on my iPhone (iOS 18). Despite trying several guides and solutions, I cannot find the option to allow access to motion and orientation for websites in the browser settings. I’ve checked privacy settings, and the device is up to date. Can anyone guide me on how to enable this feature in Safari or share any workarounds? Thanks in advance!
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620
Dec ’24
Safari 18.2 repeats Authorization header when it reloads
Safari 18.2 on Sequoia 15.2 sends repeated Authorization header when iCloud Relay is enabled and the page is reloaded. Inside Safari Preferences -> Privacy -> Hide IP address -> from Trackers and Websites (ensure this is enabled) Visit a website that uses HTTP Authorization and authenticate oneself Reload website a couple of times and it will result in an HTTP 400 error due to repeat Authorization header sent by Safari
Topic: Safari & Web SubTopic: General Tags:
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Dec ’24
Inquiry about WebRTC camera access when using Chrome browser and WKWebView API on iPadOS
We are Java application developers and we have a question regarding camera access via WebRTC on iPadOS. Specifically, on iPadOS 17.1, we are encountering an issue when trying to access the camera via the WKWebView API in the Chrome browser, where an error occurs and the camera capture fails. Our investigation suggests that device access through the navigator.mediaDevices property via the WKWebView API may not work in Chrome. However, it works as expected in the Safari browser, leading us to wonder if this is a Chrome-specific limitation, or if it's due to an iPadOS setting or specification. At this point, we are unsure if this issue is related to the WKWebView and WebRTC specifications on iPadOS 17.1, or if there are specific limitations in Chrome. We would appreciate any insights or solutions regarding camera access in iPadOS 17.1 with WKWebView and WebRTC, especially in relation to Chrome.
Topic: Safari & Web SubTopic: General Tags:
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537
Dec ’24
IOS 18.1 wkwebview bug issue
The web page image is not fully displayed, only part of it is rendered. Switch the app to the background and then to the foreground, and the incomplete image will be rendered correctly again.
Topic: Safari & Web SubTopic: General
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527
Dec ’24
Arc Browser like tabs view and tabs management in Safari
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.
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735
Dec ’24
PerApp VPN Broken on iOS 18.2 if Huge Safari Domains Configure?
When configuring a Per-App VPN payload with 250+ Safari domains under a managed app, the VPN does not trigger for the other managed apps(like chrome etc). However, the same VPN successfully starts and works when used with Safari. Reducing the number of Safari domains in the VPN payload resolves the issue, allowing the VPN to trigger for the managed app as expected. Has anyone else faced this issue, and what's the workaround for it?
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Dec ’24
WKWebView evaluateJavascript method crash with async/await when javascript call doesn't have return value
I wrote a code like the example below to execute javascript code that has no return value. let webView: WKWebView // after load complete let result = await webView.evaluateJavascript("someFunction()") // :0: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value but when i use method with completion handler manner, it doesn't be crashed. but Xcode enforces me to use 'await' keyword and warning is bordering me await webView.evaluateJavaScript("someFunction()", completionHandler: nil) // warning: Consider using asynchronous alternative function The differnce I found is the different signature. Completion handler version has Optional result type, but async/await version has just Any result type func evaluateJavaScript(_ javaScriptString: String, completionHandler: ((Any?, Error?) -> Void)? = nil) func evaluateJavaScript(_ javaScriptString: String) async throws -> Any my Xcode version is 13.2.1. Hope to fix it soon.
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5.6k
Jan ’25
Throttling on navigator.geolocation.getCurrentPosition on Safari
I'm using navigator.geolocation.getCurrentPosition to retrieve the users coordinates in a PWA built with Nextjs. getCurrentPosition is called by clicking on a button. If getCurrentPosition is called afterwards, the cached value is returned. On Safari, If I refresh the page, or logout, login and call getCurrentPosition again, the getCurrentPosition error callback is called with an error code 2 - POSITION_UNAVAILABLE. After around five minutes, getCurrentPosition can be called again. Is there some kind of throttling restriction on Safari navigator.geolocation.getCurrentPosition?
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442
Jan ’25
WKWebview termination due to memory. Adjustable threshold for termination?
Hi, Our company has an application uses the WKWebview to host a lot of content. The content is web based and hosts a lot of charts and metrics. Because of the high content, we've seen the memory of the WebContent hit above 1.25 GB. When that happens, it'll eventually terminate and we have our recovery code to reload the same page Seems like the limit is hidden / internal. Some Apple devs also noted something might be hard coded to be limited as well. Yes, we have our optimizations but we still need to keep our queries, use react, cache, etc... It's just a heavy web application. Request: Can you help us raise that limit? Are there some limitations in Webkit for such a need to terminate? As some devices have much higher RAM than before, we were hoping to be able to dynamically adjust the limit for the wkwebview before it resets. We contacted our internal contacts but they said to post here.
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495
Jan ’25
Camara preview High probability failed on iOS17.5
When using WKWebview to load the following url on iOS17.5, The Camara preview page is likely to not display the image, but there is no error report. The video cannot be loaded. There is no problem with iOS17 and iOS18. I can't find the cause of the error, How to avoid this problem? I hope you can provide some suggestions. I want a way to avoid the error,Thanks STEPS TO REPRODUCE Run iOSTest.xcodeproj on iOS17.5 Tap WKWebview(Camara) Waiting webview load url tap 手持设备训练 立即开始 download demo https://github.com/xuty/Report22/raw/refs/heads/main/iOSTest_1_url.zip
Topic: Safari & Web SubTopic: General
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274
Jan ’25
iOS 18.2 Can't open X-Callback-URL from Safari Extension
I have a Safari Extension which replaces default new tab and puts a link on a generated new tab. This link can be either usual URL link, or a URL Scheme, something like plecoapi://x-callback-url/df?hw=${char}&sec=dict In iOS 17 and previosly, this link worked flawlessly. In iOS 18, including 18.2, this X-Callback-URL link works only once, if I kill Safari process, reopen Safari and tap the link. Each subsequent tap will just reload the page, link won't work anymore until the next Safari reload. Usual URL links works every time without a problem.
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Jan ’25