[tor-bugs] #31206 [Applications/Tor Browser]: http://ip-check.info detects browser window size with JS disabled

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#31206: http://ip-check.info detects browser window size with JS disabled
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 Reporter:  cypherpunks               |          Owner:  tbb-team
     Type:  defect                    |         Status:  reopened
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Critical                  |     Resolution:
 Keywords:                            |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by cypherpunks):

 > Actually the chances (or rather the statistics) that many other people
 use Tor Browser at all compared to the number of non-TB users are very
 small.

 non-TB users are de-anonymized by default so you shouldn't even take them
 under consideration.

 > Please reconsider with an option to block @media queries or otherwise
 mitigate the effect of them.

 Breaks a lot of sites, at best it's something to consider for the long
 term.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31206#comment:8>
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