Re: [tor-bugs] #21886 [Applications/Tor Browser]: Downloading of binary files stalls at 0/0 bytes in Tor Browser based on ESR52 with e10s off

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#21886: Downloading of binary files stalls at 0/0 bytes in Tor Browser based on
ESR52 with e10s off
-------------------------------------------------+-------------------------
 Reporter:  gk                                   |          Owner:  gk
     Type:  defect                               |         Status:
                                                 |  needs_information
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-usability, tbb-7.0-must-alpha,   |  Actual Points:
  ff52-esr, TorBrowserTeam201705,                |
  GeorgKoppen201705                              |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
                                                 |  Sponsor4
-------------------------------------------------+-------------------------

Comment (by gk):

 Replying to [comment:22 mcs]:
 > Replying to [comment:21 gk]:
 > > Well, that's not the same as in the attachment which is why I was
 asking.
 >
 > Ah. I forgot that we posted a patch in an attachment (work in progress)
 and then later we posted a pointer to what we thought was a better patch.
 The main difference between the two patches is where our hook is added
 (`nsExternalHelperAppService::DoContent()` vs.
 `nsExternalAppHandler::OnStartRequest()`). But you probably already knew
 that...
 >
 > Do you know if the patch we posted in the attachment fixes this bug on
 Linux? We did not try it because we were hoping to find a fix for #21766
 as well, on all platforms.

 Yes, it works for me on Linux with a custom build. And your patch in the
 attachment makes the difference between a working and broken download (all
 other things are equal). And, probably of equal importance, it stops the
 "http channel Listener OnDataAvailable contract violation" message in the
 console as well. So, I am slightly optimistic for this ticket... I am
 doing some nightlies right now for better testing, having your fix on top
 of `tor-browser-52.1.0esr-7.0-2-build1`.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21886#comment:23>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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