https://github.com/cloudhead/less.js/issues/1232 http://stackoverflow.com/questions/15519637/why-do-i-get-400-bad-request-header-on-a-thin-ruby-website-hosted-on-heroku/15520030?noredirect=1#15520030 due to this line https://github.com/cloudhead/toto/blob/master/lib/toto.rb#L333
