Cannot log in to lang-8.com (SNS for language learners) using Tor Browser.
I am trying to use the website Lang-8 (a social networking site for language learning) with tor browser. I can create an account but I cannot log in. Whenever I enter my user name and password on the lang-8 login page, I am redirected back to the welcome page of the site and I do not appear to be logged in.
I do not get any kind of error message, so I don't think that the site is deliberately blocking tor.
I have tried both Tor Browser version 3.6.6 and 4.0-alpha-3; the problem occurs with both versions.
First I thought that maybe https-everywhere is to blame, but disabling it does not solve the problem.
After some experimentation, I discovered that if I disable the NoScript extension in Tor Browser (via the Addons menu item in Firefox), I can log in to lang-8 successfully. So it seems that NoScript is causing the problem.
Of course, turning off NoScript is not a viable long-term solution. I tried turning on NoScript again, but adding a regexp matching lang-8 urls to the NoScript XSS protection whitelist, but this didn't help.
See also this question on tor stackexchange.