[wp-trac] [WordPress Trac] #41787: Media: JS error when removing a video/audio source

[WordPress Trac]

#41787: Media: JS error when removing a video/audio source
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 Reporter:  afercia       |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  4.9
Component:  Media         |    Version:  trunk
 Severity:  normal        |   Keywords:  needs-patch
  Focuses:  javascript    |
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 Noticed while investigating on #38759.

 To reproduce:
 - add a video or audio in a post
 - click on the video/audio player to make the edit details button appear
 and click it
 - a modal opens with the audio/video details
 - click on "remove video source" (or audio)
 - check your browser console:

 `Uncaught TypeError: Cannot read property 'remove' of undefined`

 Happens also when adding and then removing additional, alternate
 video/audio sources.

 Couldn't reproduce on stable 4.8.1 so seems a regression in trunk to me,
 probably related to recent MediaElement.js update (seems to me the whole
 $media and $node properties are missing).

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Ticket URL: <https://core.trac.wordpress.org/ticket/41787>
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