254545 2023-03-27 13:35:08 -0700 New Wake Lock API does not work in Home Screen Web Apps 2025-12-10 13:51:25 -0800 1 1 1 Unclassified WebKit New Bugs Safari 17 Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=303885 InRadar P2 Normal --- 1 webkit cdumez af bedney boris.brudnoy cdumez clshortfuse cryze92 detheuss drmoerkerke dwaynemac echrs ehsan.herai ggaren ik jensimmons jesperbendtsen83 marcosc me pierre-etienne.lord robert.gergeo sbehrens1414 tomac vincent.tremblay-lavoie webkit-bug-importer webkit wiedemann.m zazi.dx oldest_to_newest 1944349 0 webkit 2023-03-27 13:35:08 -0700 New Wake Lock API works in Safari browser but does not work when web page is added to home screen. https://whatpwacando.today/wake-lock 1944379 1 cdumez 2023-03-27 14:25:40 -0700 Thank you for filing the bug and the reproduction case. I'll investigate when I have some spare cycles. I have no idea why Home Screen web apps would behave differently than MobileSafari here. 1944380 2 webkit-bug-importer 2023-03-27 14:25:53 -0700 <rdar://problem/107284303> 1944381 3 webkit 2023-03-27 14:28:12 -0700 Wake lock works: iOS Safari in browser iOS MS Edge in browser Wake lock does not work: iOS Safari added to home screen iOS MS Edge added to home screen iOS 16.4 iPhone 13 1944382 4 cdumez 2023-03-27 14:29:24 -0700 (In reply to siim from comment #3) > Wake lock works: > iOS Safari in browser > iOS MS Edge in browser > > Wake lock does not work: > iOS Safari added to home screen > iOS MS Edge added to home screen > > > iOS 16.4 > iPhone 13 One difference I can think of is WKWebView vs SafariViewController. 1944650 5 jesperbendtsen83 2023-03-28 09:32:21 -0700 I have experienced the same thing, it works in Safari browser, but not in installed PWA. iPhone 11 - iOS 16.4 iPad prod 2020 - iOS 16.4 1945224 6 marcosc 2023-03-29 19:13:10 -0700 Came up here to: https://bugs.webkit.org/show_bug.cgi?id=205104#c8 With another test case: https://pelord.github.io/wakeLockApiAddHomeScreen/ 1948311 7 webkit 2023-04-12 13:37:01 -0700 Also Wake Lock API does not work with "visibilitychange" event. Unable to re set wake lock api after user goes to home screen and back to Safari. NotAllowedError: Permission was denied https://github.com/mdn/dom-examples/blob/main/screen-wake-lock-api/script.js This example works fine in Android & Windows. 1948312 8 cdumez 2023-04-12 13:38:00 -0700 (In reply to siim from comment #7) > Also Wake Lock API does not work with "visibilitychange" event. > > Unable to re set wake lock api after user goes to home screen and back to > Safari. > > NotAllowedError: Permission was denied > > https://github.com/mdn/dom-examples/blob/main/screen-wake-lock-api/script.js > > This example works fine in Android & Windows. Please file a separate bug since this is a separate issue (please cc me). 1948321 9 webkit 2023-04-12 14:05:33 -0700 (In reply to Chris Dumez from comment #8) > Please file a separate bug since this is a separate issue (please cc me). https://bugs.webkit.org/show_bug.cgi?id=255363 1951101 10 cdumez 2023-04-25 10:24:48 -0700 We rely on the following code to keep the screen awake on iOS: ``` [UIApplication sharedApplication].idleTimerDisabled = YES; ``` This likely does't work in Home Screen Web Apps because they are not UIApplications but ViewServices. Looks like we need to find an alternate way to make this work for such apps. 1951206 11 cdumez 2023-04-25 16:58:07 -0700 Pull request: https://github.com/WebKit/WebKit/pull/13179 1951373 12 ews-feeder 2023-04-26 10:59:54 -0700 Committed 263419@main (bf7f0d4d340b): <https://commits.webkit.org/263419@main> Reviewed commits have been landed. Closing PR #13179 and removing active labels. 1956568 13 pierre-etienne.lord 2023-05-19 13:09:44 -0700 The fix do not seem to have landed into iOS 16.5 ... :( 1956569 14 cdumez 2023-05-19 13:15:42 -0700 (In reply to PE Lord from comment #13) > The fix do not seem to have landed into iOS 16.5 ... :( This is true. I should also mention that the fix isn't in WebKit. We added API to WebKit to allow the Safari team to fix this (and thus closed this WebKit bug report). However, the issue won't be resolved until Safari actually adopts the new WebKit API. 1968198 15 jesperbendtsen83 2023-07-26 00:10:24 -0700 in iOS 16.6 it doesn't work either :( fingers crossed for iOS 17... 1972911 16 webkit 2023-08-22 22:56:16 -0700 Still not fixed in iOS 17 beta 7. 1977232 17 webkit 2023-09-13 00:34:56 -0700 Still not fixed in iOS 17 RC 1977342 18 vincent.tremblay-lavoie 2023-09-13 12:47:30 -0700 Just installed iOS 17 Beta on iPad, and still doesn't work. 1979766 19 webkit 2023-09-25 04:12:17 -0700 Still not fixed in iOS 17.0.1. I guess it will be never fixed. What a waste of time. 1979897 20 cdumez 2023-09-25 12:02:49 -0700 WebKit is providing API for Safari to adopt. No further code change is expected in WebKit so there is no point in keeping this WebKit bug open. 1979899 21 ap 2023-09-25 12:05:04 -0700 Please report this https://feedbackassistant.apple.com for better visibility within Apple. You are also welcome and encouraged to comment here, however that's not as good as reporting feedback in the right place. 1979903 22 webkit 2023-09-25 12:18:40 -0700 (In reply to Alexey Proskuryakov from comment #21) > Please report this https://feedbackassistant.apple.com for better visibility > within Apple. > > You are also welcome and encouraged to comment here, however that's not as > good as reporting feedback in the right place. This website does not work with other browsers: VM95:1 Uncaught (in promise) SyntaxError: Unterminated string in JSON at position 993 (line 1 column 994) https://i.imgur.com/Ml5VgKU.png 1979904 23 webkit 2023-09-25 12:23:45 -0700 Also broken in Safari.(In reply to Alexey Proskuryakov from comment #21) > Please report this https://feedbackassistant.apple.com for better visibility > within Apple. > > You are also welcome and encouraged to comment here, however that's not as > good as reporting feedback in the right place. Also broken in Safari. Please test your links before recommending them here... 1979906 24 cdumez 2023-09-25 12:28:27 -0700 (In reply to siim from comment #23) > Also broken in Safari.(In reply to Alexey Proskuryakov from comment #21) > > Please report this https://feedbackassistant.apple.com for better visibility > > within Apple. > > > > You are also welcome and encouraged to comment here, however that's not as > > good as reporting feedback in the right place. > > Also broken in Safari. > > Please test your links before recommending them here... This site is working fine for me both in Safari and Chrome. The issue you're seeing could be caused by a browser extension. If not, I'm unsure what the issue is. https://feedbackassistant.apple.com is the main Apple website to file bugs and we do get a lot of bugs report from this site. 1979907 25 webkit 2023-09-25 12:35:17 -0700 I do not have any extensions on Safari. I guess they do not want regular users feedback :) 1979908 26 webkit 2023-09-25 12:39:59 -0700 https://i.imgur.com/RgU2eNC.png Same JSON parse error in Safari: Unhandled Promise Rejection: SyntaxError: JSON Parse error: Unterminated string SyntaxError: JSON Parse error: Unterminated string 1979909 27 cdumez 2023-09-25 12:42:03 -0700 (In reply to siim from comment #26) > https://i.imgur.com/RgU2eNC.png > > Same JSON parse error in Safari: > Unhandled Promise Rejection: SyntaxError: JSON Parse error: Unterminated > string > SyntaxError: JSON Parse error: Unterminated string At what step do you get this error? 1979913 28 webkit 2023-09-25 12:52:22 -0700 (In reply to Chris Dumez from comment #27) > At what step do you get this error? 2 seconds after login and I can see unread iOS beta news and then it crashes to blank page. 1979938 29 webkit 2023-09-25 13:58:36 -0700 Managed to get screenshot before crash. I guess untitled feedback is corrupted. https://i.imgur.com/A39si4s.png 1979956 30 webkit 2023-09-25 14:35:30 -0700 This feedback website is broken in iOS 17 iPhone 13 also. Managed to add new feedback and choose iOS/iPad and after that it crashes to blank screen. 1980198 31 jensimmons 2023-09-26 09:51:06 -0700 rdar://108573133 1980237 32 jensimmons 2023-09-26 11:33:35 -0700 Closing this again, because the work needed in the WebKit engine is in fact complete. Web apps are interesting because they involve both the browser engine and other kinds of browser technology / operating system technology. Wake Lock API does not yet work in Home Screen Web Apps. We are aware; this is not unexpected. The work that's still needed for a complete fix _is_ being tracked and discussed — just not in the WebKit project, since the WebKit portion is done. Stay tuned. 1999622 33 pierre-etienne.lord 2023-12-14 10:02:01 -0800 Does this fix in webkit has landed in iOS 17.2? 1999841 34 webkit 2023-12-15 00:49:30 -0800 No Still broken 2000261 35 jesperbendtsen83 2023-12-17 00:06:28 -0800 I'm really waiting for this to work in web apps, have been playing hidden video for years as a workaround. The downside with this method is that the video title and play and pause buttons appear on the front on iOS devices. Not cool. So Apple please prioritize this, been waiting since iOS 16.4 for a fix for web apps. The WebKit team has done their work a long time ago… 2003922 36 drmoerkerke 2024-01-09 13:44:40 -0800 How can we report this to Apple? Otherwise this will probably never be fixed :-( 2003962 37 marcosc 2024-01-09 17:16:44 -0800 Reopening... and don't don't worry, Apple people (e.g., me) do monitor these things. I'll check to see what's going on as this has possibly regressed. 2003985 38 cdumez 2024-01-09 18:34:43 -0800 @Marcos: There is no issue to fix on WebKit side, therefore there is no reason to have a WebKit bugzilla bug. There is already a radar and it is already assigned to the correct team at Apple. This issue was not forgotten. 2003986 39 cdumez 2024-01-09 18:35:14 -0800 (In reply to Danny Moerkerke from comment #36) > How can we report this to Apple? Otherwise this will probably never be fixed > :-( feedbackassistant.apple.com is how people report bugs to Apple. 2003987 40 marcosc 2024-01-09 19:09:18 -0800 Oh yeah, oops. Sorry, Chris. Forgot we’d already suggested that. 2005775 41 webkit 2024-01-17 23:30:22 -0800 Still not fixed in iOS 17.3. 2011686 42 webkit 2024-02-08 02:37:41 -0800 It is fixed in iOS 17.4 by removing PWA support entirely... No PWA, no problem. https://www.theregister.com/2024/02/08/apple_web_apps_eu/ 2014064 43 webkit 2024-02-15 12:14:37 -0800 It is official now. Home Screen Apps are just bookmarks in iOS. Thanks all @apple.com developers here for helping to kill open web. https://open-web-advocacy.org/blog/apple-on-course-to-break-all-web-apps-in-eu-within-20-days/ 2023666 44 pierre-etienne.lord 2024-03-25 08:37:06 -0700 They finally changed their mind. https://bugs.webkit.org/show_bug.cgi?id=268643#c50 2025399 45 webkit 2024-04-02 09:04:39 -0700 The bug had its one-year anniversary last month. Thanks Apple 2043838 46 dwaynemac 2024-06-30 07:44:11 -0700 i'm having this issue on iPhone 14, iOS 17.5.1 2057566 47 zazi.dx 2024-09-04 06:10:53 -0700 This bug still exists in the latest version of iOS. Any updates? Something to let us at least hope for a future where we can ship web apps properly on iOS? 2063439 48 ik 2024-09-26 11:47:37 -0700 "There is already a radar and it is already assigned to the correct team at Apple. This issue was not forgotten." https://bugs.webkit.org/show_bug.cgi?id=254545#c38 That was 9 months ago. iOS 16.4 was released 18 months ago. Would be nice if someone could send a memo or something to that team? I mean, I imagine WebKit folks who worked on this feature would like their colleagues to take their work seriously and fix this? < Sorry for sounding snarky, but it would be a shame to have this take 3 years like fixing background audio in web apps did. > 2065456 49 bedney 2024-10-04 07:37:12 -0700 Looks like this is still not fixed in iOS 18.0 Can others verify? Continuing to use the 'video element' hack for now, but its hacky and leaves detritus on the lock screen. Any update Apple folks? Cheers, - Bill 2066171 50 clshortfuse 2024-10-08 07:53:40 -0700 Video playback no longer works as a suitable fallback. An iPad will dim and lock regardless. This has completely degraded the state of our application. I have about 40 upset users who will need to migrate to Android devices. 2073871 51 webkit 2024-11-08 10:09:48 -0800 I'm also encountering this issue in a PWA that I am developing. I need the screen to stay awake because the user is reading a document while operating an instrument with both hands with no opportunity to send input that would keep the screen at normal brightness. 2073878 52 webkit 2024-11-08 10:23:51 -0800 This bug is still present in iOS 18.1 for installed PWA apps / bookmarked sites. The wakelock works when the page is running in Safari, but does not work when the app / page was opened from the home screen. A simple way to confirm this is to try the 'Enable Wake Lock' button on this page: https://progressier.com/pwa-capabilities/screen-wake-lock from safari (works) and from a page opened from the home screen (does not work). 2084150 53 wiedemann.m 2024-12-28 05:16:20 -0800 The bug still seems to be present in iOS 18.2 for PWAs. Working fine in Safari. In PWA, even though it gives you a proper WakeLockSentinel object and rejection reason, it still goes to sleep. Tested using the previously mentioned https://progressier.com/pwa-capabilities/screen-wake-lock and my own web app. 2086950 54 sbehrens1414 2025-01-13 18:38:12 -0800 This bug seems to be fixed with 18.2.1. Can someone else on 18.2.1 confirm? 2086953 55 sbehrens1414 2025-01-13 18:44:06 -0800 (In reply to Sam Behrens from comment #54) > This bug seems to be fixed with 18.2.1. Can someone else on 18.2.1 confirm? Nevermind. I’m sorry to give anyone a false sense of hope. I hadn’t realized that I had changed my phone settings. WebKit team/Apple, please address this bug. 2087988 56 ehsan.herai 2025-01-17 00:26:02 -0800 Has anyone got any workaround? btw I've already tried video-playing solution. 2088026 57 dwaynemac 2025-01-17 05:55:15 -0800 i'm using @scottjgilroy/no-sleep and it works on iphone 2098239 58 echrs 2025-02-26 06:45:12 -0800 Issue still present on 18.3.1... 2098240 59 drmoerkerke 2025-02-26 06:51:31 -0800 (In reply to Dwayne Macgowan from comment #57) > i'm using @scottjgilroy/no-sleep and it works on iphone Please read the issue description, this doesn't work for web apps that have been added to the Home Screen. The library you mentioned uses the native wakeLock under the hood so it will work in the browser but not when the web app is added to the Home Screen. 2098684 60 echrs 2025-02-27 00:52:55 -0800 (In reply to Danny Moerkerke from comment #59) > (In reply to Dwayne Macgowan from comment #57) > > i'm using @scottjgilroy/no-sleep and it works on iphone > > Please read the issue description, this doesn't work for web apps that have > been added to the Home Screen. > > The library you mentioned uses the native wakeLock under the hood so it will > work in the browser but not when the web app is added to the Home Screen. FWIW, I've found a demo page that showcases multiple libraries (https://sgilroy.github.io/nosleep.page) and the library mentioned above seems to work in PWA mode. 2098689 61 drmoerkerke 2025-02-27 01:21:19 -0800 (In reply to Nikki Bernobic from comment #60) > (In reply to Danny Moerkerke from comment #59) > > (In reply to Dwayne Macgowan from comment #57) > > > i'm using @scottjgilroy/no-sleep and it works on iphone > > > > Please read the issue description, this doesn't work for web apps that have > > been added to the Home Screen. > > > > The library you mentioned uses the native wakeLock under the hood so it will > > work in the browser but not when the web app is added to the Home Screen. > > FWIW, I've found a demo page that showcases multiple libraries > (https://sgilroy.github.io/nosleep.page) and the library mentioned above > seems to work in PWA mode. On iOS 18.3.1 this works, except for the first library. But comment #50 suggests this no longer works on iPadOS. 2098737 62 clshortfuse 2025-02-27 06:26:01 -0800 "Where this API isn't supported, an empty silent video is played to emulate this behaviour (using NoSleep.js)." Video playback is hit or miss and doesn't work when the page actually uses audio/video stream like WebRTC. I mentioned this before, and I ultimately ended up losing the client and the $200K/yr contract that came with it. 2107270 63 detheuss 2025-03-30 10:30:56 -0700 Hey folks, any updates on this? It's been a couple of years now... it’s starting to feel like yet another case of Apple quietly sabotaging PWAs. 2107272 64 ik 2025-03-30 10:41:41 -0700 🙄 https://webventures.rejh.nl/blog/2024/history-of-safari-show-stoppers/#anchor--2023-new-wake-lock-api-does-not-work-in-home-screen-web-apps 2107484 65 jensimmons 2025-03-31 11:33:32 -0700 The Screen Wake Lock API now works in Home Screen Web Apps on iOS and iPadOS 18.4 — which just shipped today. https://developer.apple.com/documentation/safari-release-notes/safari-18_4-release-notes#Home-Screen-Web-Apps 2107516 66 af 2025-03-31 12:37:13 -0700 (In reply to Jen Simmons from comment #65) > The Screen Wake Lock API now works in Home Screen Web Apps on iOS and iPadOS > 18.4 — which just shipped today. > > https://developer.apple.com/documentation/safari-release-notes/safari-18_4- > release-notes#Home-Screen-Web-Apps It works! Hallelujah! 2107533 67 detheuss 2025-03-31 13:07:43 -0700 (In reply to af from comment #66) > (In reply to Jen Simmons from comment #65) > > The Screen Wake Lock API now works in Home Screen Web Apps on iOS and iPadOS > > 18.4 — which just shipped today. > > > > https://developer.apple.com/documentation/safari-release-notes/safari-18_4- > > release-notes#Home-Screen-Web-Apps > > It works! Hallelujah! Well, I kid you not – I contacted Apple yesterday through this form: https://www.apple.com/feedback/iphone/ I was pretty much BEGGING them to fix this, because people are losing clients and it's been reported over 2 years ago. I also sent them a link to this thread and this blog: https://webventures.rejh.nl/blog/2024/history-of-safari-show-stoppers/#anchor--2023-new-wake-lock-api-does-not-work-in-home-screen-web-apps So if there's a problem like this with iOS, try that contact form – seems like someone is actually reading the reports. Or maybe it was just a coincidence. We'll never know. Cheers guys, and happy hacking! 2107555 68 drmoerkerke 2025-03-31 13:49:13 -0700 I can confirm this finally works on iOS 18.4 public beta. Demo: https://whatpwacando.today/wake-lock Thanks everyone! 2163363 69 af 2025-12-04 13:53:08 -0800 (In reply to Jen Simmons from comment #65) > The Screen Wake Lock API now works in Home Screen Web Apps on iOS and iPadOS > 18.4 — which just shipped today. > > https://developer.apple.com/documentation/safari-release-notes/safari-18_4- > release-notes#Home-Screen-Web-Apps I just installed iOS 26.1, and this seems to have regressed. It no longer appears to be supported. 2163374 70 af 2025-12-04 14:38:28 -0800 (In reply to af from comment #69) > (In reply to Jen Simmons from comment #65) > > The Screen Wake Lock API now works in Home Screen Web Apps on iOS and iPadOS > > 18.4 — which just shipped today. > > > > https://developer.apple.com/documentation/safari-release-notes/safari-18_4- > > release-notes#Home-Screen-Web-Apps > > I just installed iOS 26.1, and this seems to have regressed. It no longer > appears to be supported. Please disregard - the issue was with our browser detection library.