Cloudflare consistently displays captcha for TorBrowser 8.0.1 but not for 8.0.0

Nick Sullivan on twitter claims that Cloudflare detects and treats Tor users differently so however they're detecting that may have been broken by 8.0.1.

Given the recent collaboration between Tor and Cloudflare on avoiding the captcha I hope it's OK to report this here.

I don't mean to imply the problem has anything to do with this new feature because if you see the screenshots, neither was given the alt-svc header that is supposed to allow Torbrowser to access Cloudflare sites without the captcha.

Trac:
Username: cypherpunks_reply