Twitter Api返回错误215 - 错误验证数据

Question

我正在访问我的Angular应用程序中的Twitter搜索API，导致以下错误。将此更改实施为https。仍然得到相同的错误

{"errors":[{"code":215,"message":"Bad Authentication data."}]}

Twitter的service.js

    angular.module('TwitterServices', [], function ($provide) {
        $provide.factory('$twitter', function ($http, $log) {

            var consumerKey = encodeURIComponent('<consumerKey from twitter api>');
            var consumerSecret = encodeURIComponent('<consumerSecret from twitter api>');
            var credentials = Base64.encode(consumerKey + ':' + consumerSecret);
            var twitterOauthEndpoint = $http.post(
                'https://api.twitter.com/oauth2/token'
                , "grant_type=client_credentials"
                , {
                    headers: {
                        'Authorization': 'Basic ' + credentials, 'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8',
                        'Access-Control-Allow-Origin': '*'
                    }
                }
            );
            twitterOauthEndpoint.success(function (response) {
                serviceModule.$httpProvider.defaults.headers.common['Authorization'] = "Bearer " + response.access_token
            }).error(function (response) {
            });