title: Can I modify outgoing request headers with a Chrome Extension?
body: <p>I can't see an answer to this in the <a href="http://code.google.com/chrome/extensions/devguide.html" rel="noreferrer">Developer's Guide</a>, though maybe I'm not looking in the right place.</p>
  
  <p>I want to intercept HTTP requests with a Chrome Extension, and then forward it on, potentially with new/different HTTP headers - how can I do that?</p>