angular中ajax请求头配置 IE下不缓存请求

config(['$locationProvider', '$urlRouterProvider','$httpProvider', function($locationProvider, $urlRouterProvider, $httpProvider) {
    $locationProvider.hashPrefix('!');
    $urlRouterProvider.otherwise('/customization/funsetting');
    $httpProvider.defaults.headers.put['Content-Type'] = 'application/x-www-form-urlencoded';
    $httpProvider.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
        //initialize get if not there
        if (!$httpProvider.defaults.headers.get) {
            $httpProvider.defaults.headers.get = {};
        }

        // Answer edited to include suggestions from comments
        // because previous version of code introduced browser-related errors

        //disable IE ajax request caching
        $httpProvider.defaults.headers.get['If-Modified-Since'] = 'Mon, 26 Jul 1997 05:00:00 GMT';
        // extra
        $httpProvider.defaults.headers.get['Cache-Control'] = 'no-cache';
        $httpProvider.defaults.headers.get['Pragma'] = 'no-cache';
    $httpProvider.defaults.transformRequest = [function(data) {
        /**
         * The workhorse; converts an object to x-www-form-urlencoded serialization.
         * @param {Object} obj
         * @return {String}
         */
        var param = function(obj) {
            var query = '';
            var name, value, fullSubName, subName, subValue, innerObj, i;

            for (name in obj) {
                value = obj[name];

                if (value instanceof Array) {
                    for (i = 0; i < value.length; ++i) {
                        subValue = value[i];
                        fullSubName = name + '[' + i + ']';
                        innerObj = {};
                        innerObj[fullSubName] = subValue;
                        query += param(innerObj) + '&';
                    }
                } else if (value instanceof Object) {
                    for (subName in value) {
                        subValue = value[subName];
                        fullSubName = name + '[' + subName + ']';
                        innerObj = {};
                        innerObj[fullSubName] = subValue;
                        query += param(innerObj) + '&';
                    }
                } else if (value !== undefined && value !== null) {
                    query += encodeURIComponent(name) + '='
                        + encodeURIComponent(value) + '&';
                }
            }

            return query.length ? query.substr(0, query.length - 1) : query;
        };

        return angular.isObject(data) && String(data) !== '[object File]'
            ? param(data)
            : data;
    }];
}])
.run(['$rootScope', '$state', '$stateParams',
    function($rootScope, $state, $stateParams) {
        $rootScope.$state = $state;
        $rootScope.$stateParams = $stateParams;
    }
]);