[tbb-bugs] #29859 [Applications/Tor Browser]: Playing videos on Twitter is not working and freezing the mobile browser

Tor Bug Tracker & Wiki blackhole at torproject.org
Wed Apr 10 19:42:33 UTC 2019

#29859: Playing videos on Twitter is not working and freezing the mobile browser
 Reporter:  gk                                   |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-mobile, GeorgKoppen201904,       |  Actual Points:
  TorBrowserTeam201904R, tbb-8.5-must            |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:

Comment (by sysrqb):

 Replying to [comment:12 gk]:
 > Okay, so, if we really can't handle HLS, be it on desktop or mobile we
 get the options to download the m3u8 file and/or open it with an external
 app. One can test that behavior with
 > https://azure.microsoft.com/en-us/blog/live-247-reference-streams-
 > On mobile with 8.5a10 the symptoms of this bug are visible but with my
 patch one gets the desktop behavior of the external helper app dialog
 showing up.

 This sounds like it ties onto #26529.


 > The second line is interesting because it shows that the HLS support is
 provided by Twitter via some JS file which explains why the content (both
 on desktop and mobile) is playing at all. How frequent that fallback
 mechanism is on the web I don't know but either way, I think we can live
 with the patch for now.

 I've heard this is popular with some of the popular video-streaming sites,
 but I don't know how popular it is in general. I suspect not-very-popular.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/29859#comment:13>
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