224274 2021-04-07 01:49:27 -0700 window.closed of opened window remains false when it is closed in standalone mode 2022-02-10 11:39:21 -0800 1 1 1 Unclassified WebKit DOM Safari 14 iPhone / iPad iOS 14 RESOLVED MOVED InRadar P2 Normal --- 1 chenhaoftk webkit-unassigned achristensen bfulgham cdumez david_quesada smoley thorton webkit-bug-importer oldest_to_newest 1747815 0 chenhaoftk 2021-04-07 01:49:27 -0700 Minimal repro: https://wuchenhao.github.io/open-window/index.html Symptom: when a window is opened from standalone mode, its `closed` property is not updated to `true` when the window is closed. Repro steps: 1. Visit above URL on iPhone 2. Add the page to home screen 3. Open the page from home screen (page should be opened in standalone mode) 4. Click the "Open Window" button. A blank page should be opened. 5. Close the blank page. Observe that there is no alert window showing up - indicating that `window.closed` remains `false`. Additional information: 1. The issue only exists in iOS standalone mode. Also Mac Safari doesn't exhibit this issue. 1747816 1 chenhaoftk 2021-04-07 01:51:43 -0700 I would expect that `window.closed` is set to `true` after the window is closed. 1748007 2 smoley 2021-04-07 12:16:12 -0700 Thanks for filing, this worked as expected as recently as iOS 14.2.1. I can reproduce this issue on the latest iOS 14.5 beta. 1748008 3 webkit-bug-importer 2021-04-07 12:16:25 -0700 <rdar://problem/76359684> 1748250 4 chenhaoftk 2021-04-08 03:25:50 -0700 Thanks! Also this issue can only be reproduced on real phones. Simulators do not have this problem. 1748852 5 cdumez 2021-04-09 13:52:17 -0700 It appears the bug in not in WebKit but in SafariViewController. The radar has been forwarded to the SafariViewController team. Closing this WebKit bug. 1839852 6 bfulgham 2022-02-10 11:39:21 -0800 This should now be fixed in shipping software.