[tor-bugs] #19186 [Applications/Tor Browser]: KeyboardEvents are only rounding to 100ms

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri May 27 01:22:36 UTC 2016

#19186: KeyboardEvents are only rounding to 100ms
     Reporter:  arthuredelstein      |      Owner:  arthuredelstein
         Type:  defect               |     Status:  new
     Priority:  Medium               |  Milestone:
    Component:  Applications/Tor     |    Version:
  Browser                            |   Keywords:  tbb-fingerprinting,
     Severity:  Normal               |  TorBrowserTeam201505
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:                       |
 In #1517, the idea was to round most event time stamps to 100ms, but to
 round KeyboardEvent.timeStamp to 250 ms (see

 Our current patch for #1517 is [https://gitweb.torproject.org/tor-
 browser-45.1.1esr-6.0-1&id=191e520147e00b1a103b9fd91ad37fa4b0cf9d28 here].

 However, when I test KeyboardEvents in the latest Tor Browser, I only see
 rounding to 100 ms. With the debugger I observed that calling
 myKeyboardEvent.timeStamp in the browser console is calling
 Event::TimeStamp() instead of KeyboardEvent::TimeStamp. So we're
 apparently failing to properly override the Event::TimeStamp call.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19186>
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