NEW 214726
scroll-snap jumpy with playing video content 
https://bugs.webkit.org/show_bug.cgi?id=214726
Summary scroll-snap jumpy with playing video content
Ben Ubois
Reported 2020-07-24 02:14:46 PDT
Overview -------- Scrolling is jumpy when playing a video inside of a container that uses `scroll-snap`. Steps to Reproduce ------------------ 1. Visit https://codepen.io/asdf/full/WNrmdPK 2. Play the video 3. Scroll to the right and left repeatedly Actual Results -------------- Scrolling appears to jump around with significant jank. Expected Results ---------------- Scrolling is smooth Build Date & Hardware --------------------- iOS 14 (18A5319i) iPhone and iPad Additional Builds and Platforms ------------------------------- - iOS 14 developer beta 1-3 - iOS 14 public beta Doesn't Occur On ---------------- - iOS 13 or previous - Safari Technology Preview Release 110 (Safari 14.0, WebKit 15610.1.21.0.2) Additional Information ---------------------- Here's a video demonstration: https://www.dropbox.com/s/i1jr4nul4uf15xh/scrolling.mp4?dl=0 Please let me know if there's any more information I can provide. Thanks!
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Radar WebKit Bug Importer
Comment 1 2020-07-24 11:05:58 PDT
<rdar://problem/66063432>
Simon Fraser (smfr)
Comment 2 2020-07-24 11:22:29 PDT
https://trac.webkit.org/changeset/264704/webkit may have fixed this
Martin Robinson
Comment 3 2021-07-07 08:07:55 PDT
I'm not able to reproduce this with the latest from master.
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