Properly handle removal of JSON Hijacking prevention method responses with jQuery.

jquery-fix-json-hijacking-prevention-response.js

$.ajaxSetup({
    dataFilter: function(data, type) {
        var prefixes = ['//', 'while(true);', 'for(;;);'],
            i,
            l,,
            pos;

        if (type != 'json' && type != 'jsonp') {
            return data;
        }

        for (i = 0, l = prefixes.length; i < l; i++) {
            pos = data.indexOf(prefixes[i]);
            if (pos === 0) {
                return data.substring(prefixes[i].length);
            }
        }

        return data;
    }
});