title: Unable to access web content's request object when linked to asset publisher
body: <p>On adding a web content in an asset publisher, we are getting empty request object but if we add the same web content in web content display then we are able to see the request object.</p>
  
  <p>Here is what I tried:</p>
  
  <ol>
  <li>Create a web content and try to print $request object.</li>
  <li>Add this web content into an asset publisher. We observe request object to be empty("{}").</li>
  <li>Add the same content in web content display to validate.</li>
  </ol>
  
  <p>My requirement is: 
     I need the themeDisplay object which is available inside request object of "web content".</p>
  
  <p>Any idea whether this is expected behavior? Whether this is any possible workaround to achieve my requirement?</p>
  
  <p>Thanks in advance!</p>