title: How to set app_data with facebook pagetab dialog url?
body: <p>I am trying to set app_data to a specific tab page. So a facebook user who clicks the page tab will have the app_data available.</p>
  
  <p>I was trying to add app_data to the pagetab dialog url</p>
  
  <p>I tried the following urls:</p>
  
  <p><a href="http://www.facebook.com/dialog/pagetab?app_id=290672084311996&amp;redirect_uri=https://apps.facebook.com/artware/?app_data=aa" rel="nofollow">www.facebook.com/dialog/pagetab?app_id=290672084311996&amp;redirect_uri=https://apps.facebook.com/artware/?app_data=aa
  </a></p>
  
  <p><a href="http://www.facebook.com/dialog/pagetab?app_id=290672084311996&amp;next=https://apps.facebook.com/artware/?app_data=a" rel="nofollow">www.facebook.com/dialog/pagetab?app_id=290672084311996&amp;next=https://apps.facebook.com/artware/?app_data=a
  </a></p>
  
  <p><a href="http://www.facebook.com/dialog/pagetab?app_id=290672084311996&amp;next=https://jbartfb.herokuapp.com/?app_data=a" rel="nofollow">www.facebook.com/dialog/pagetab?app_id=290672084311996&amp;next=https://jbartfb.herokuapp.com/?app_data=a
  </a></p>
  
  <p><a href="http://www.facebook.com/dialog/pagetab?app_id=290672084311996&amp;redirect_uri=https://jbartfb.herokuapp.com/?app_data=a" rel="nofollow">www.facebook.com/dialog/pagetab?app_id=290672084311996&amp;redirect_uri=https://jbartfb.herokuapp.com/?app_data=a</a></p>
  
  <p>none of them worked for me.</p>
  
  <p>thanks,
  shai</p>