[tor-bugs] #20025 [Applications/Tor Browser]: document.characterSet enables fingerprinting of localization (only with HSTS?)

[Tor Bug Tracker & Wiki]

#20025: document.characterSet enables fingerprinting of localization (only with
HSTS?)
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 Reporter:  dcf                       |          Owner:  tbb-team
     Type:  defect                    |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:  tbb-fingerprinting        |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
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Comment (by cypherpunks):

 Latest Tor Browser:
 https://www.bamsoftware.com/people.eecs.berkeley.edu/~fifield/tor20025
 /check-charset.html

 Using ambiguous bytes (#10703)  iso-8859-1
 document.characterSet (#20025)  UTF-8
 document.charset        UTF-8
 document.inputEncoding  UTF-8

 Anyone got same result?
 (Firefox 61 with resistFingerprint also have this value)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20025#comment:3>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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