Filter doesn't work on “ON” & “OFF” strings

Vacciph

I'm using jquery datatables 1.10.2, filtering is working on all columns including the status column but it doesn't filter when i try to filter records on the string "ON" or "OFF". If i change the same string to say "ONN", then it works. here is table initialization.

var _oTable = $('#' + tablename).DataTable({

    "columnDefs": [{
        "class": 'details-control',
        "targets": [0],
        "data": null,
        "defaultContent": ''
        },
        {orderable: false, targets: [0, 5] }
    ],

    "order": [[1, 'asc']],
    "aLengthMenu": [[10, 25, 50, 100, 500, -1], [10, 25, 50, 100, 500, "All"]]
});

Any idea, if someone else also experienced the same issue.