title: Only use a proxy for certain git urls/domains?
body: <p>Is it possible to configure git to use a proxy only for specific domains?</p>
  
  <p>I'd like to use our corporate proxy to access Github but leave it off for accessing our own internal git repos.</p>
  
  <p>I'm using bower and it needs to require items both within our firewall and on github so I can't do this as a per project setting. It needs to be some kind of global configuration option. Any thoughts?</p>