Using tablesorter custom parser only for filtering with Checkboxes - working example needed

I am trying to implement filtering my checkbox checked status similar to (or exactly like?) Ivan when he posted "Using tablesorter custom parser only for filtering". I've gone back and forth on custom parsers and text extraction and every permutation from the examples provided in the docs to no avail. Could someone look at my example posted at http://ift.tt/1N8fHzh and help me get it working? I'm using the headers and textExtraction function provided in that and other examples:

            headers: {
            0: {
                sorter: 'false',
                filter: 'parsed'
            }
        },
        textExtraction: {
            0: function (node, table, cellIndex) {
                return $(node).find('.MyCheckbox').prop('checked') ? 'True' : 'False';
            }
        }

To boil it down, I have two buttons. One will filter anything without the checkbox checked, the other resets the filter. The reset is working fine. The filter (in my local file) filters everything. jsfiddle doesn't work at all.