macournoyer/thin — pull request #129 by jjanauskas (2012-09-04 21:20:56+00:00)
Title: Thin should not do nothing once there is an exception while parsing request

I think it should send 400 request back to webserver/browser. Many solutions, like nginx upstreams in no response situation will forward request to another thin server in upstream and then such request will be forwarded many times which is not very cool :)