[Webkit-unassigned] [Bug 232076] Safari on iOS cannot play a video from data uri or blob

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=232076

--- Comment #27 from Jer Noble <jer.noble at apple.com> ---
(In reply to Dustin Kerstein from comment #26)
> Hi everyone,
> 
> I was able to test this on a first generation iPad Pro running iPad OS 15.4
> and on an iPhone X on iOS 15.4. Upon initial testing it looked like this fix
> finally addressed the issue. However, upon further testing I noticed that
> playback/seeking would sometimes stall (usually around the same place in the
> video). While this could be a different issue, it's interesting that the one
> piece of valuable debug I've found so far is the range request. Here is what
> a valid request/response looks like during working playback:
> 
> Request
> --------
> Range: bytes=4292608-4308991
> 
> Response
> --------
> Content-Type: video/mp4
> Content-Length: 16384
> Content-Range: bytes 4292608-4308991/4315470
> 
> And when playback/seeking breaks, I see this malformed range
> request/response:
> 
> Request
> --------
> Range: bytes=4308992- 
> 
> Response
> --------
> Content-Length: 6478
> Content-Range
> 
> No playback/seeking works after this bad 206 range request.


This behavior sounds like what should have been fixed by bug #238170.

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