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Re: [tor-bugs] #13186 [Tor Browser]: performance.timing leak in ESR31

#13186: performance.timing leak in ESR31
--------------------------------+------------------------------------------
     Reporter:                  |      Owner:  tbb-team
  arthuredelstein               |     Status:  new
         Type:  defect          |  Milestone:
     Priority:  normal          |    Version:
    Component:  Tor Browser     |   Keywords:  ff31-esr, tbb-fingerprinting
   Resolution:                  |  Parent ID:
Actual Points:                  |
       Points:                  |
--------------------------------+------------------------------------------
Description changed by arthuredelstein:

Old description:

> In ESR31, although we set `dom.enable_preformance` to false, I still see
> nonzero performance.timing properties: For example:
>
> {{{
> > performance.timing
> < PerformanceTiming { navigationStart: 0, unloadEventStart: 0,
> unloadEventEnd: 0, redirectStart: 1411030797789, redirectEnd:
> 1411030797789,
> fetchStart: 1411030797789, domainLookupStart: 1411030797789,
> domainLookupEnd: 1411030797789, connectStart: 1411030797789,
> connectEnd: 1411030797789 }
> }}}
>
> I suppose this is a regression in Firefox.

New description:

 In TBB/ESR31, although we set `dom.enable_preformance` to false, I still
 see nonzero performance.timing properties: For example:

 {{{
 > performance.timing
 < PerformanceTiming { navigationStart: 0, unloadEventStart: 0,
 unloadEventEnd: 0, redirectStart: 1411030797789, redirectEnd:
 1411030797789,
 fetchStart: 1411030797789, domainLookupStart: 1411030797789,
 domainLookupEnd: 1411030797789, connectStart: 1411030797789,
 connectEnd: 1411030797789 }
 }}}

 I suppose this is a regression in Firefox.

--

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13186#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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