[tor-bugs] #19200 [Applications/Tor Browser]: HTML5 video not blocked with placeholder, plays automatically

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#19200: HTML5 video not blocked with placeholder, plays automatically
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 Reporter:  potato                               |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  closed
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Major                                |     Resolution:  fixed
 Keywords:  tbb-security-slider,                 |  Actual Points:
  tbb-6.0-issues, noscript, GeorgKoppen201611,   |
  TorBrowserTeam201611                           |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by cypherpunks):

 Replying to [comment:45 ma1]:
 > Replying to [comment:43 i139]:
 > > Replying to [comment:42 i139]:
 > > > but I have to click in two placeholder for play the video
 > >
 > > it's because the page at first time reload
 >
 > It's probably because there are two separate MediaSource buffers with
 different content types, e.g. one for audio and one for video.
 Nice way to play audio only if required.

 But these placeholders are behind the player on Twitter, so clicking leads
 to play/pause effect.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19200#comment:47>
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