[Webkit-unassigned] [Bug 217175] REGRESSION(r260755): [GStreamer] Cannot play webm videos on Wordpress

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=217175

--- Comment #4 from Alicia Boya García <aboya at igalia.com> ---
This has not been fixed by magic, this was a bug in the blog.gtk.org server who wasn't handling HTTP range-requests properly, which (for the most part) you need for media playback. In fact, it was in the logs:

0:00:04.116096192    67      0x177e550 ERROR      webkitmediaplayer MediaPlayerPrivateGStreamer.cpp:1871:handleMessage: Error 9: R2: Received unexpected 200 HTTP status code for range request (url=https://blog.gtk.org/files/2020/09/Screencast-from-09-30-2020-05-39-53-PM3-convert-video-online.com_.webm?_=2)

Range requests need to return 206 Partial Content. "200 OK" like in this log means the server didn't recognize the Range-Request, and therefore the data afterwards would come with the wrong offset, which is why WebKitMediaSrc is stopping with an error.

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