Tor Browser restricts js timing precision to 100 milliseconds, which makes this way harder. HTTPS Everywhere also creates a lot of false positives, although tho

Tor Browser restricts js timing precision to 100 milliseconds, which makes this way harder. HTTPS Everywhere also creates a lot of false positives, although those can be subtracted out. See discussion at https://trac.torproject.org/projects/tor/ticket/17423 https://trac.torproject.org/projects/tor/ticket/17423