174626 2017-07-18 07:12:25 -0700 webkitfullscreenchange event not fired on iOS for vimeo.com videos 2022-02-12 23:31:54 -0800 1 1 1 Unclassified WebKit Media WebKit Nightly Build All All RESOLVED INVALID https://bugs.webkit.org/show_bug.cgi?id=174627 InRadar P2 Normal --- 1 graouts webkit-unassigned bfulgham jeremyj-wk webkit-bug-importer oldest_to_newest 1329964 0 graouts 2017-07-18 07:12:25 -0700 Steps to reproduce: 1. go to https://vimeo.com/225249697 2. tap to start the video 3. inspect the page to find the <video> element 4. type the following in the Console: $0.addEventListener("webkitpresentationmodechanged", event => console.log(event.type)) 5. type the following in the Console: $0.addEventListener("webkitfullscreenchange", event => console.log(event.type)) 6. enter fullscreen 7. exit fullscreen You'll notice that the "webkitpresentationmodechanged" event gets fired as the media enters and exits fullscreen, but "webkitfullscreenchange" isn't. 1329965 1 webkit-bug-importer 2017-07-18 07:12:45 -0700 <rdar://problem/33375684> 1329967 2 graouts 2017-07-18 07:16:36 -0700 This bug causes https://bugs.webkit.org/show_bug.cgi?id=174627. 1330029 3 graouts 2017-07-18 11:24:45 -0700 This is not a recent regression, the same problem exists on iOS 10.3.2. 1840960 4 bfulgham 2022-02-12 23:31:54 -0800 This is correct. webkitfullscreenchange is dispatched on element fullscreen, not on video fullscreen. For video fullscreen we dispatch: webkitbeginfullscreenEvent / webkitendfullscreenEvent However, when using the new element fullscreen, you should now see webkitfullscreenchange, but not webkitpresentationmodechanged or webkitbeginfullscreenEvent