title: Is sending POST data with a GET request valid?
body: <p>Using Curl for example, I can &quot;post&quot; data (send an entity-body) in a GET request. Is this a valid thing to do? With that I mean:</p>
  <ul>
  <li>Is it not forbidden by any RFC specification?</li>
  <li>Does someone out there use it with good reason?</li>
  </ul>