[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:  tbb-team
  mikeperry              |     Status:  new
         Type:  defect   |  Milestone:
     Priority:  major    |    Version:
    Component:  Tor      |   Keywords:  ff31-esr, tbb-easy, tbb-
  Browser                |  fingerprinting, TorBrowserTeam201409Easy
   Resolution:           |  Parent ID:
Actual Points:           |
       Points:           |
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Comment (by gacar):

 Also I think this is a genuine FF bug since
 [http://dev.w3.org/html5/workers/#the-workernavigator-object webworker
 spec] says:
     "navigator[...] must return an instance of the WorkerNavigator
 interface, which represents the identity and state of the user agent (the
 client)"

 In Chromium, device emulation works in the same way for worker and global
 scripts (they both read the same spoofed values).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13027#comment:7>
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