Render domain data table fields only as text

powerdnsadmin/templates/domain.html

@@ -161,6 +161,10 @@
                 type: 'natural',
                 targets: [0, 4]
             },
+            {
+                targets: [0, 5],
+                render: $.fn.dataTable.render.text()
+            },
             {
                 // hidden column so that we can add new records on top
                 // regardless of whatever sorting is done. See orderFixed