AF83/em-eventsource — pull request #3 by mutru (2012-04-02 03:08:59+00:00)
Title: Call #close for the HTTP connection, not the request

Otherwise the connection doesn't really get closed, and you'll receive events even after calling #close for the source.

A bug related to this was fixed in em-http-request's master branch just recently:
https://github.com/igrigorik/em-http-request/issues/184