title: AFNetworking : How to know if response is using cache or not ? 304 or 200
body: <p>I can't find any answer to my question, may be I miss something...</p>
  
  <p>When I ask for a url, I need to know if the response comes from the cache or from the net.</p>
  
  <p>Is the status code 304 or 200 ? (but <code>AFNetworking</code> always responde 200)</p>
  
  <p>With <code>ASIHTTPRequest</code> I used to check "<code>didUseCachedResponse</code>" from <code>ASIHTTPRequest</code>, this was perfect.</p>