162232 2016-09-19 13:54:45 -0700 Fullscreen elements render improperly if they have a parent with animated 'translate' 2026-10-15 10:07:52 -0700 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build Mac macOS 10.12 RESOLVED CONFIGURATION CHANGED P2 Minor --- 276855 1 a webkit-unassigned ahmad.saleem792 a bfulgham fred.wang jer.noble ntim simon.fraser oldest_to_newest 1231304 0 a 2016-09-19 13:54:45 -0700 Example URL: http://codepen.io/amonks/pen/GjjdoA Steps to reproduce the problem: 1. Open the link above 2. Fullscreen the embedded Youtube player What is the expected behavior? The youtube player is shown in the fullscreen What went wrong? The youtube player is constrained within its ancestor. Does it occur on multiple sites: Yes Is it a problem with a plugin? No Did this work before? No Does this work in other browsers? Yes. Both webkit and blink show this error, but firefox renders correctly. Here's a reference to the same bug in chromium's tracker: https://bugs.chromium.org/p/chromium/issues/detail?id=501246 I copied-and-pasted most of this text from there. 1903480 1 ahmad.saleem792 2022-10-05 11:50:48 -0700 I am able to reproduce this issue in Safari Technology Preview 154 and the full screen leads to codepen result output being fullscreen while youtube embed being limited to few pixel in height and stretched to end to end. Chrome Canary 108 works fine and so do Firefox Nightly 107 as well. Thanks! 1950330 2 ahmad.saleem792 2023-04-21 05:48:01 -0700 (In reply to Ahmad Saleem from comment #1) > I am able to reproduce this issue in Safari Technology Preview 154 and the > full screen leads to codepen result output being fullscreen while youtube > embed being limited to few pixel in height and stretched to end to end. > > Chrome Canary 108 works fine and so do Firefox Nightly 107 as well. Thanks! This seems to now work fine in Safari Technology Preview 168. Appreciate if someone else can confirm that it is working as intended, so we can close this. Thanks! CCing - Tim, since he worked on Fullscreen API recently. 2262412 3 fred.wang 2026-10-12 01:21:03 -0700 (In reply to Ahmad Saleem from comment #2) > (In reply to Ahmad Saleem from comment #1) > > I am able to reproduce this issue in Safari Technology Preview 154 and the > > full screen leads to codepen result output being fullscreen while youtube > > embed being limited to few pixel in height and stretched to end to end. > > > > Chrome Canary 108 works fine and so do Firefox Nightly 107 as well. Thanks! > > This seems to now work fine in Safari Technology Preview 168. > > Appreciate if someone else can confirm that it is working as intended, so we > can close this. Thanks! > > CCing - Tim, since he worked on Fullscreen API recently. I cannot reproduce the issue with Safari 27.0.1 I think I need to play the video to be able to see the "fullscreen button" and this is not mentioned in the report. However, I see nothing like in comment 1. So I think we can close.