I\'m using successfully this code
function refreshDataTable() { // The table is made sortable $(\'#order_proposal_table\').DataTable({
Have you tried passing null for the remaining 4 columns rather than just specifying the first 5? So:
'columns': [ { 'searchable': false }, { 'searchable': false }, null, null, { 'searchable': false }, null, null, null, null ]
I would have posted this as a comment but I couldn't include the example.