title: Symfony2 FOSRestBundle: POST method not allowed, allowed GET
body: <p>I'm using FOSRestBundle to build an API. The POST method for my resource is not allowed. Any one knows why. GET requets are accepted though.  </p>
  
  <pre><code>  ...
    /**
     * @ParamConverter("post", converter="fos_rest.request_body")
     */
    public function postAction(Post $post)
    {
      $person = new Person();
      return $person;
    }
    ...
  </code></pre>
  
  <p>My route config is this:</p>
  
  <pre><code>persons:
      type:     rest
      resource: DnD\ApiBundle\Controller\PersonController
  </code></pre>