DT Server side sort

HTML

<html>
<head>
  <link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/3.7.3/build/cssreset/reset-min.css">
</head>
<body>
<div id="dt"></div>

<label for="sss">Server side sort</label> <input id="sss" type="checkbox"/>
<br/>
<label id="msg"></label>
<script src="http://yui.yahooapis.com/3.7.3/build/yui/yui.js"></script>
</body>
</html>

JavaScript

YUI({
    filter: 'raw',
    debug: true,
    combine: false,
    }).use("datatable", "node", 'datatable-scroll', 'model-list', function(Y) {
    var table, MyModelList;

    function compare(x, y) {
        return x.dint - y.dint;
    }

    function reversedCompare(x, y) {
        return y.dint - x.dint;
    }

    function LocalModelSync(){}
    LocalModelSync.prototype = {
        sync: function(action, options, callback){
            data = [
               {dnum:100, dint:1, dtxt:"Test \r \n 1 string", dname:"George"},
               {dnum:101, dint:2, dtxt:"Test 2 string", dname:"Paul"},
               {dnum:102, dint:3, dtxt:"Test 3 string", dname:"Chase"},
               {dnum:103, dint:4, dtxt:"Test 4 string", dname:"Marge"},
               {dnum:104, dint:5, dtxt:"Test 5 string", dname:"Ben"},
               {dnum:105, dint:6, dtxt:"Test 6 string", dname:"Skyler"},
               {dnum:106, dint:7, dtxt:"Test 7 string", dname:"Lara"},
               {dnum:107, dint:1, dtxt:"Test 1 string", dname:"George"},
               {dnum:108, dint:2, dtxt:"Test 2 string", dname:"Paul"},
               {dnum:109, dint:3, dtxt:"Test 3 string", dname:"Chase"},
               {dnum:110, dint:4, dtxt:"Test 4 string", dname:"Marge"},
               {dnum:111, dint:5, dtxt:"Test 5 string", dname:"Ben"},
               {dnum:112, dint:6, dtxt:"Test 6 string", dname:"Skyler"},
               {dnum:113, dint:7, dtxt:"Test 7 string", dname:"Lara"}
            ];
            if (options.sortBy){
                data.sort(options.sortBy[0].dint === 1 ? compare : reversedCompare);
            }
            callback(null, data);
        }
    };

        MyModelList = Y.Base.create('myModelList', Y.ModelList, [LocalModelSync],{
            sort: function (){
                if (this.serverSideSort) {
                    Y.one('#msg').set('innerHTML', "Prevented client side sort!");
                    Y.later(1000, null, function (){
                       ...