[tor-bugs] #21792 [Applications/Tor Browser]: Make sure MediaError.message does not aid to fingerprinting

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#21792: Make sure MediaError.message does not aid to fingerprinting
-------------------------------------------------+-------------------------
 Reporter:  gk                                   |          Owner:
                                                 |  arthuredelstein
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ff52-esr, tbb-fingerprinting,        |  Actual Points:
  tbb-7.0-must-alpha, TorBrowserTeam201705R      |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by arthuredelstein):

 * keywords:  ff52-esr, tbb-fingerprinting, tbb-7.0-must-alpha,
     TorBrowserTeam201705 =>
     ff52-esr, tbb-fingerprinting, tbb-7.0-must-alpha,
     TorBrowserTeam201705R
 * status:  needs_revision => needs_review


Comment:

 Replying to [comment:13 gk]:
 > Replying to [comment:12 mcs]:
 > > Your patch looks okay, although it would be safer to return an empty
 string in aResult in the `privacy.resistFingerprinting = true` case.
 >
 > I agree. Could you please change that, Arthur?

 Yes, good point. Here is the changed patch:
 https://github.com/arthuredelstein/tor-browser/commit/21792+1

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21792#comment:14>
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