title: Web data connector with server
body: <p>I'm trying to load in Tableau some data from a JSON. 
  I have the URL for this JSON. If I try to access directly to this URL the JSON is created and I can download it (takes me 15 seconds).
  In order to load this data, I'm using a web data connector, the jsonConnector.html in the Example folder. 
  This is my architecture:</p>
  
  <pre><code>My computer    ||    Server
  Tableu        :81    Connector
                :9000  JSON URL
  </code></pre>
  
  <p>So I'm using putty and port forwarding actually. 
  On the port 81, I can access to the connector from my PC to the server. 
  On the port 9000, I have a website which provides a URL for the JSON</p>
  
  <p>What I do it's to go in tableau -> Web data connector -> <a href="http://localhost:81/Examples/jsonConnector.html" rel="nofollow">http://localhost:81/Examples/jsonConnector.html</a> -> url for json : <a href="http://localhost:9000/MYURLFORJSON" rel="nofollow">http://localhost:9000/MYURLFORJSON</a> -> submit
  Then a pop-up arrives : Loading metadata...
  I let the process run for 10 hours now... I think it's not working.</p>
  
  <p>Is there a way to have some debugging? Is it a problem with my architecture? </p>
  
  <p><strong>[UPDATE]</strong>
  If I drag and drop my JSON file it works! So I need to understand why I can't reach the server passing the URL to the connector. 
  I Don't know how I could have some debug information</p>