[tbb-bugs] #18272 [Tor Browser]: Browser resizing allows linking different tabs

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Feb 7 18:42:06 UTC 2016

#18272: Browser resizing allows linking different tabs
     Reporter:  cypherpunks  |      Owner:  tbb-team
         Type:  defect       |     Status:  new
     Priority:  Medium       |  Milestone:
    Component:  Tor Browser  |    Version:
     Severity:  Normal       |   Keywords:
Actual Points:               |  Parent ID:
       Points:               |    Sponsor:
 When a browser window is resized, a series of intermediate size steps
 occurs. The sequence of these resize steps along with a time stamp is
 almost certainly unique and can be used link different tabs.

 While "onresize" events don't appear to fire in inactive tabs, Javascript
 timers work in inactive tabs and can be used to perform very high
 resolution polling.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18272>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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