FixedHeader autoWidth bug

by Francis Irving

HTML

<link rel="stylesheet" href="https://cdn.datatables.net/1.10.13/css/jquery.dataTables.css">
<script src="https://cdn.datatables.net/1.10.13/js/jquery.dataTables.js"></script>
<link rel="stylesheet" href="https://cdn.datatables.net/fixedheader/3.1.2/css/fixedHeader.dataTables.css">
<script src="https://cdn.datatables.net/fixedheader/3.1.2/js/dataTables.fixedHeader.js"></script>
<table id="sponsor_table" class="display" cellspacing="0" width="100%">
    <thead>
    <tr>
      <th>Sponsor name</th>
      <th>Tests</th>
      <th>Due tests</th>
      <th>Unreported</th>
      <th>% Reported</th>
    </tr>
  </thead>

    <tr><td> Foo corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Bar corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Humbug corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Moo corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Squeak corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Yap corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Howl corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Maeow corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Huggle corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  <tr><td> Silent corp </td><td> 10 </td><td> 20 </td><td> 30 </td><td> 1% </td></tr>
  
</table>

JavaScript

var t = $('#sponsor_table').DataTable({
  "fixedHeader": true,
  "order": [[ 4, "desc" ]],
  "pageLength": 100,
  "lengthMenu": [ [10, 100, 500, -1], [10, 100, 500, "All"] ],
  "orderClasses": false, // Turns off column highlighting, so sorting much faster
  "dom": "tlpr",
  "autoWidth": false,
  "aoColumns": [
    { "width": "200px", "orderSequence": [ "asc", "desc" ] },
    { "width": "17.5%", "orderSequence": [ "desc", "asc" ], "className": "dt-right" },
    { "width": "17.5%", "orderSequence": [ "desc", "asc" ], "className": "dt-right"  },
    { "width": "17.5%", "orderSequence": [ "desc", "asc" ], "className": "dt-right"  },
    { "width": "17.5%", "orderSequence": [ "desc", "asc" ], "className": "dt-right"  }
   ],
});