title: Datatables: Uncaught TypeError: Cannot read property 'copy' of undefined when using Buttons Plugin
body: <p>I'm trying to initialize my table as: </p>
  
  <pre><code>var table = $("#table-id").DataTable({
      "columnDefs": [{
          "width": "8%", 
          "targets": 0
      }],
      'bSort': false,
      bPaginate: false,
      bFilter: false,
      bInfo: false,
      buttons: [
          'copy', 'excel', 'pdf'
      ]
  });
  </code></pre>
  
  <p>But I'm getting an error on Chrome's console that says: </p>
  
  <blockquote>
    <p>Uncaught TypeError: Cannot read property 'copy' of undefined at dataTables.buttons.min.js:17</p>
  </blockquote>