try-hubot/hubot-socket.io — pull request #1 by travisjeffery (2012-07-24 16:00:22+00:00)
Title: Force polling on Heroku

Currently Heroku doesn't support WebSockets so you have to configure Socket.IO to poll, see: https://devcenter.heroku.com/articles/using-socket-io-with-node-js-on-heroku