title: Cross Domain Resource Sharing GET: 'refused to get unsafe header "etag"' from Response
body: <p>A simple GET request with no custom headers. The response is returned as expected. The data in the body is accessible, but not the headers.</p>
  
  <p>When I try to access the "etag" header, browsers raise an exception :</p>
  
  <blockquote>
    <p>Refused to get unsafe header "etag"</p>
  </blockquote>
  
  <p>Chrome, Safari and Firefox all behave the same. I didn't test it on IE.</p>
  
  <p>What am I missing here?</p>