title: API callback URL doesn't work for Android in app purchases through Google checkout
body: <p>I want Google checkout to call my servlet when ever I receive a order</p>
  
  <p>I entered my servlet url into the API callback URL field and selected Notification as XML (the url was https) and when some in ap purchases were made I received no call</p>
  
  <p>Has anyone got this working? or is this another feature that does not work Android along with email notifications</p>