Bug 277335
| Summary: | REGRESSION (iOS 18 beta): Using MP4 in <img> element causes the video to stutter | ||
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| Product: | WebKit | Reporter: | Mads Erik Forberg <mads> |
| Component: | Images | Assignee: | Nobody <webkit-unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | Normal | CC: | ap, eric.carlson, jean-yves.avenard, jer.noble, jotoffen, sabouhallawa, webkit-bug-importer |
| Priority: | P2 | Keywords: | InRadar |
| Version: | Safari 18 | ||
| Hardware: | iPhone / iPad | ||
| OS: | iOS 18 | ||
Mads Erik Forberg
In iOS 18 public beta (22A5307i), using MP4 files as "gifs" causes the video to stutter.
Steps to reproduce:
1. Use Safari on iOS 18.
2. Goto https://static.vg.no/img-mp4-example/
3. Video stutters.
This is working fine in previous versions of iOS / Safari.
Test device: iPhone 14 Pro
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Radar WebKit Bug Importer
<rdar://problem/132853008>
Alexey Proskuryakov
Thank you for the report. We haven't been able to reproduce this so far. Could you please try with the current beta?
Mads Erik Forberg
Still happening on iOS 18 build 22A5316k (public beta).
Mads Erik Forberg
You can see the stuttering in action here:
https://drive.google.com/file/d/19K_iSonO5CuA9ZRG3JppDEhWLep7Na7n/view?usp=sharing
Mads Erik Forberg
Just updated to beta 3 of iOS 18 (22A5326f) - and the issue seems to be resolved.
You can close this issue now. Thank you for following up :-)
Alexey Proskuryakov
Awesome, this explains why we couldn't reproduce! Thank you for the update.