.factory("ie9Http",["$q",function($q){ // ie9 xmlHttp 不支持cors跨域解决方案

        return {

            fetchIe9: function (url, options) {

                var deffered = $q.defer();

                if (window.XDomainRequest) { // ie9支持此属性

                    var method = options.method || 'GET';

                    var timeout = options.timeout || 30000;

                    var  data = options.body || options.params || {};

                    if (data instanceof Object) {

                        data = JSON.stringify(data);

                    }

                    var XDR = new XDomainRequest();

                    XDR.open(method, url);

                    XDR.timeout = timeout;

                    XDR.onload = function(){

                        try {

                            var json = JSON.parse(XDR.responseText);

                            deffered.resolve(json);

                        } catch (e) {

                            deffered.reject(e);

                        }

                    };

                    XDR.ontimeout = function(){return deffered.reject('XDomainRequest timeout');};

                    XDR.onerror = function(){return deffered.reject('XDomainRequest error');};

                    XDR.send(data);

                } else {

                    deffered.reject({err:'不支持XDomainRequest对象'});

                }

                return deffered.promise;

            }

        };

    }])