[tbb-dev] How to enable window.performance.timing on TBB
sysrqb at torproject.org
Wed Nov 6 23:21:04 UTC 2019
On 2019-11-06 23:12, Zhao Zhang wrote:
> Hi there,
> Sorry I have a silly question, currently I'm preparing some timing
> analysis on TorBrowser and find that it looks like most of
> window.performance info has been disabled (I think, for security
> It returns all 0s for executing script "window.performance.timing",
> and returns empty  for executing window.performance.getEntries().
> I've looked through about:config, tried modifying
> but looks still no effect. So where is the proper way to enable
> performance timing? Thanks.
Indeed. This API is disabled by the privacy.resistFingerprinting pref.
We began experimenting with a way of working around this, but we haven't
succeeded yet (mostly due to lack of time).
Sorry we don't have a more helpful answer right now.
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