title: CasperJS waitForResource again
body: <p>Im using</p>
  
  <pre><code>.waitForResource('/auth')
  .then( .... )
  .waitForResource('/auth')
  .then( .... )
  </code></pre>
  
  <p>To wait for an ajax call to <code>/auth</code> to complete before then validating the UI response.</p>
  
  <p>However, the subsequent call to <code>/auth</code> appear to continue immediately as it has already loaded that resource.</p>
  
  <p>Is there some way to tell casperJS to wait again, or clear that resource so it doesn't think it has loaded for the second request?</p>