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

[Tor Bug Tracker & Wiki]

#17009: Shift and Alt keys leak physical Keyboard layout
-------------------------------------------------+-------------------------
 Reporter:  arthuredelstein                      |          Owner:  tbb-
     Type:  defect                               |  team
 Priority:  Medium                               |         Status:
Component:  Tor Browser                          |  needs_revision
 Severity:  Normal                               |      Milestone:
 Keywords:  tbb-fingerprinting,                  |        Version:
  TorBrowserTeam201511R                          |     Resolution:
Parent ID:                                       |  Actual Points:
  Sponsor:                                       |         Points:
-------------------------------------------------+-------------------------

Comment (by arthuredelstein):

 Replying to [comment:23 gk]:
 > I wonder if there is a way to distinguish between event listeners from
 content pages and those from chrome code (i have not checked the code). If
 so, then we could let these events get created in the first place but
 allow them only to bubble up to chrome listeners.

 It turns out that in vanilla Firefox, content-generated KeyboardEvents are
 shared with chrome. So the problem with this patch is that I was deleting
 events from content pages, then chrome isn't seeing them either. So I need
 to look into whether it is possible to just send the events to chrome and
 keep them from being visible to content.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17009#comment:25>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online