title: Datatables TypeError: c is undefined
body: <p>I try to use jQuery DataTables but I get the error</p>
  
  <blockquote>
    <p>TypeError: c is undefined</p>
  </blockquote>
  
  <p>I don't know what is wrong with my code as I can see the JSON correctly retrieve and is in the correct format too but I don't know what is wrong with it that I get the above error.</p>
  
  <p>My JSON :</p>
  
  <pre><code>{"Data":[{"LOGIN":10184},{"LOGIN":10214},{"LOGIN":10180},{"LOGIN":10187},{"LOGIN":10179},{"LOGIN":10280},{"LOGIN":201},{"LOGIN":10238},{"LOGIN":10296},{"LOGIN":10312}]}
  </code></pre>
  
  <p>and my DataTables code:</p>
  
  <pre><code>$(document).ready(function() {
      $('#tablename').dataTable( {
          "processing": true,
          "serverSide": true,
          "ajax": {
              "type": "POST",
          "url": "https://test.com/api/db/select",
          "data": function ( json ) {  return JSON.stringify( { "Sql": 12 } );},
          "contentType": "application/json; charset=utf-8",
          "dataType": "json",
          "processData": true,
              beforeSend : function(xhr){
                          var access_token = sessionStorage.getItem('access_token');
                          xhr.setRequestHeader('Authorization', 'Bearer ' + access_token);
              }
          },
          "dataSrc": "Data",
          "columns": [
              { "data": "LOGIN" }
          ]
      } );
  } );
  </code></pre>