title: DataTables Print button not working, prints a blank page
body: <p>I'm working on a project that uses the DataTables plug in to construct a table of words from a database. This is the function I use to create my table.</p>
  
  <pre><code>var word_data_filtered = filterWordData(filter_states);
  words_table = $("#words_generated").DataTable({
      "data" : word_data_filtered,
      "columns" : columns,
      "aLengthMenu": [[25, 50, 100, 200, -1],
              [25, 50, 100, 250, "All"]],
      "pageLength": 100,
      dom: "lBftipr",
      buttons: [
         'print',
      ]
  });
  </code></pre>
  
  <p>Buttons are an additional plugin/add-on to DataTables. So I'm actually going to copy and paste a major chunk of the various scripts that I include in the head of my file, partly because if I am missing something I'd like to know.</p>
  
  <pre><code>  &lt;script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"&gt;&lt;/script&gt;
   &lt;script src="//cdn.datatables.net/1.10.7/js/jquery.dataTables.min.js"&gt;
   &lt;/script&gt;
   &lt;script src="//cdn.datatables.net/plug-ins/1.10.7/integration/bootstrap/3/dataTables.bootstrap.css"&gt;&lt;/script&gt;
   &lt;script src="//cdn.datatables.net/plug-ins/1.10.7/integration/bootstrap/3/dataTables.bootstrap.js"&gt;&lt;/script&gt;
   &lt;link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"&gt;
   &lt;link rel="stylesheet" href="https://cdn.datatables.net/tabletools/2.2.4/css/dataTables.tableTools.min.css"/&gt;
   &lt;script src="https://cdn.datatables.net/tabletools/2.2.4/js/dataTables.tableTools.min.js"&gt;&lt;/script&gt;
   &lt;script src="https://cdn.datatables.net/tabletools/2.2.4/swf/copy_csv_xls_pdf.swf"&gt;&lt;/script&gt;
  
   &lt;script src="https://cdn.datatables.net/buttons/1.3.1/js/dataTables.buttons.min.js"&gt;&lt;/script&gt;
   &lt;script src="https://cdn.datatables.net/buttons/1.3.1/js/buttons.print.min.js"&gt;&lt;/script&gt;
  </code></pre>
  
  <p>So now I have a "print" button that displays on the page. But in my chrome browser, the print button doesn't work.</p>
  
  <p>Upon clicking it, a new tab opens with google chrome's printing panel set on top of a table. However, the printing panel prompts you to print a blank page. The preview of the print shows a blank page (well, there's a header at the top and that's it) The table under the printing panel looks exactly like the table on my web page, so I'm assuming that I've made it some of the way to actually printing out the entire table.</p>
  
  <p>But still. I don't really know why this is happening and I'm unsure how to proceed further</p>