title: Debug gwt inside facebook iframe
body: <p>I'm trying to debug my gwt 2.0 apllication that runs inside facebook iframe.</p>
  
  <p>When i use '<a href="http://127.0.0.1:8888/index.html?gwt.codesvr=127.0.0.1:9997" rel="nofollow noreferrer">http://127.0.0.1:8888/index.html?gwt.codesvr=127.0.0.1:9997</a>' as "Canvas Callback URL" my app doesn't loading, but when i compile it and use '<a href="http://127.0.0.1:8888" rel="nofollow noreferrer">http://127.0.0.1:8888</a>' it works perfectly. </p>