nodejitsu/node-http-proxy — pull request #737 by erupenkman (2014-11-15 07:15:56+00:00)
Title: Add ability to cancel default response from proxyRes event handlers. 

I'm using this to enable following redirects from my application logic, added a simple example of how I'm using it.

Before this change, it would ALWAYS try to pipe proxyRes into res, even if it was a 301 redirect etc.