Language detection IPv6
Sites can easily detect location/language settings. Changing browser language doesn't help, but switching IPv6 off in Mozilla settings helps somewhat. The site sometimes picks that last but one location instead of the outlet.
Tested with: Tor 6.0.5 German standard settings play.google.com
comment: disabling IPv6 is easy, but the site still does not use language of exit node but the one before.
Trac:
Username: Chuqui