title: Chrome is not sending if-none-match
body: <p>I'm trying to do requests to my REST API, I have no problems with Firefox, but in Chrome I can't get the browser to work, always throws <code>200 OK</code>, because no <code>if-none-match</code> (or similar) header is sent to the server.</p>
  
  <p><img src="https://i.stack.imgur.com/7fEuh.png" alt="Chrome request"></p>
  
  <p>With Firefox I get <code>304</code> perfectly.</p>
  
  <p><img src="https://i.stack.imgur.com/dxDBc.png" alt="Firefox request"></p>
  
  <p>I think I miss something, I tried with <code>Cache-Control: max-age=10</code> to test but nothing.</p>