[tor-bugs] #13027 [Tor Browser]: Make WebWorkers use spoofed navigator.* useragent values

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#13027: Make WebWorkers use spoofed navigator.* useragent values
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     Reporter:           |      Owner:  gk
  mikeperry              |     Status:  needs_review
         Type:  defect   |  Milestone:
     Priority:  major    |    Version:
    Component:  Tor      |   Keywords:  ff31-esr, tbb-easy, tbb-
  Browser                |  fingerprinting, TorBrowserTeam201410Easy,
   Resolution:           |  MikePerry201410R
Actual Points:           |  Parent ID:
       Points:           |
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Comment (by gk):

 Replying to [comment:28 gk]:
 > Seems the bug is triggerable by a Mozmill test without Workers being
 involved at all:

 Yes, and the Mozmill issues got fixed by bug 1062920. This, however, was
 *not* the case for the branch backports and is one of the reasons we
 needed to adapt the code for the ESR 31 backport. What a mess.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13027#comment:29>
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