调用ajax模块报错

var KISSY = require('kissy').KISSY;
KISSY.use("node,ajax,json", function(S, Node, IO, JSON) {
IO.jsonp('http://query.yahooapis.com/v1/public/yql?q=select%20title%2Clink%2Cdescription%20from%20rss%20where%20url%3D%22http%3A%2F%2Fued.taobao.com%2Fblog%2Ffeed%2F%22&format=json&diagnostics=true',
function(data) {
log(JSON.stringify(data));
}
);
});

windows7

file:E:/nodejs/buyitmall/node_modules/kissy/build/ajax.js:1849
rTransportBase.supportCORS = ('withCredentials' in XhrTransportBase.nativeXhr(
^
TypeError: Cannot use 'in' operator to search for 'withCredentials' in undefined

Read node_modules/kissy/build/ajax.js at line 1849 and inspect the XHR path used by KISSY.use(...). Reproduce the Windows 7 require/ajax JSONP call and determine why nativeXhr is undefined; done means the call runs without the reported TypeError.

Written by the indexing model from the issue text.