title: access the NSData downloaded with SDWebImage
body: <p>My server sends a picture(base64) along with a timestamp per request and i just integrated SDWebImage into my app, i'd like to know how to access the raw NSData that SDWebImage gets from </p>
  
  <pre><code>[imageView setImageWithURL:[NSURL URLWithString:[NSString stringWithFormat:@""]]];
  </code></pre>
  
  <p>that way i could separate the text from the image</p>