[tbb-bugs] #18599 [Tor Browser]: Make sure OffScreenCanvas API does not render moot our canvas fingerprinting protection
Tor Bug Tracker & Wiki
blackhole at torproject.org
Mon Mar 21 11:36:32 UTC 2016
#18599: Make sure OffScreenCanvas API does not render moot our canvas
fingerprinting protection
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Reporter: gk | Owner: tbb-team
Type: task | Status: new
Priority: Medium | Milestone:
Component: Tor Browser | Version:
Severity: Normal | Keywords: ff45-esr
Actual Points: | Parent ID:
Points: | Reviewer:
Sponsor: |
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There is a new OffScreenCanvas API that allows running WebGL in web
workers (e.g.). This is currently preffed of (ESR45)
(`gfx.offscreencanvas.enabled` is set to `false`). But this sounds scary
enough that we want to make sure that
a) preffing off the feature renders it really unusable (we should do this
for esr45)
and
b) if it is preffed on our canvas fingerprinting protections are not
harmed (can be checked when we transtions to an esr with this feature
enabled).
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18599>
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