[tbb-bugs] #17009 [Tor Browser]: Shift and Alt keys leak physical Keyboard layout

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#17009: Shift and Alt keys leak physical Keyboard layout
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     Reporter:           |      Owner:  tbb-team
  arthuredelstein        |     Status:  needs_review
         Type:  defect   |  Milestone:
     Priority:  normal   |    Version:
    Component:  Tor      |   Keywords:  tbb-fingerprinting,
  Browser                |  TorBrowserTeam201509R
   Resolution:           |  Parent ID:
Actual Points:           |
       Points:           |
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Comment (by cypherpunks):

 This patch seems insufficient. getModifierState could be used polling the
 keyboard.

 There are a lot more modifiers that can leak information:
 https://developer.mozilla.org/en-
 US/docs/Web/API/KeyboardEvent/getModifierState

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17009#comment:3>
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