title: Get post data from ByteArrayResource
body: <p>I send data over post request to path which mount to:</p>
  
  <pre><code>public class AJAXPostPort extends ByteArrayResource implements IResource {
      ...
      @Override
      protected byte[] getData(Attributes attributes) {
          attributes.getRequest().getPostParameters(); &lt;- EMPTY
          ...
      }
      ...
  }
  </code></pre>
  
  <p>and can't get it :(. Request from client side is correct and catching from PHP.</p>
  
  <p>Could you help me? how to catch post request from wicket module?</p>