mrjoes/sockjs-tornado — pull request #42 by specialunderwear (2013-04-13 09:00:22+00:00)
Title: abort_connection is missing.

When an exception occurs, both RawWebSocketTransport and WebSocketTransport try to call self.abort_connection, which used to be defined on SockJSWebSocketHandler, when it still extended tornado.RequestHandler. I've resurrected the method, to avoid raising another exception inside the exception handler.