Ajax login check on ajax

gistfile1.js

$(function(){
    $.ajaxPrefilter(function(options, _, jqXHR) {
        jqXHR.success(function(data) {
            if(data.indexOf('SOMEONSWER') != -1){
                document.body.innerHTML = '';
                window.location.pathname = '/LOGINURL';
            }
        });
    });
});