title: Invalid verification code format facebook oauth 100
body: <p>I am integrating my app on facebook
  But its give an error with code 191</p>
  
  <pre><code>{"message"=&gt;"Invalid verification code format.", "type"=&gt;"OAuthException", "code"=&gt;100, "fbtrace_id"=&gt;"FoiD8d/qbxS"}: 
  </code></pre>
  
  <p>{"error":{"message":"Invalid verification code format.","type":"OAuthException","code":100,"fbtrace_id":"FoiD8d/qbxS"}}</p>
  
  <p>My Site url : <a href="http://uae.local.me:3000/" rel="noreferrer">http://uae.local.me:3000/</a></p>
  
  <p>Callback_url: '<a href="http://uae.local.me:3000/oauth/callback" rel="noreferrer">http://uae.local.me:3000/oauth/callback</a>'</p>
  
  <p>Valid OAuth redirect URIs : <a href="http://uae.local.me:3000/oauth/callback" rel="noreferrer">http://uae.local.me:3000/oauth/callback</a></p>