title: Setting up Capybara to have an alias for the server it boots up
body: <p>So I have some features I'm wanting to test.</p>
  
  <p>For a portion of the features I'm wanting to have requests placed to a different host.</p>
  
  <p>When I'm testing my code locally (outside of Capybara) I'm able to use <code>localhost:3000</code> for a portion of the requests, and <code>0.0.0.0:3000</code> for another portion of the requests.</p>
  
  <p>Any thoughts on the best approach to replicating this approach with Capybara?</p>
  
  <p>If I set the default host to <code>localhost:3000</code> and spin up a server myself it works. But haven't yet been able to get it to work otherwise.</p>
  
  <p>FWIW I'm using poltergeist as the js driver.</p>