ajax身份验证请求头部加Authorization请求失败

Question

我是用微软身份认证，获取token,在头部加的client_id和client_secret，返回总是失败，用控制台程序调试却是成功的，求大神指导：

` axios.defaults.headers.common['Authorization'] ="Basic" +util.base64encode(config.client_id+":"+config.client_secret);

LoginForm: {
                Username: 'admin',
                Password: 'ddd88227793',
                grant_type:'password'
                }
 requestLogin(_this.LoginForm).then(data => {
                                    this.loading = false;
                                    debugger
                                    let { msg, code, user } = data;
                                    if (code !== 200) {
                                        this.$notify({
                                        title: '错误',
                                        message: msg,
                                        type: 'error'
                                        });
                                    } else {
                                    //    sessionStorage.setItem('user', JSON.stringify(user));
                                        this.$router.push({ path: '/Main' });
                                    }
                                }).catch(function (error) {
                                    console.log(error);
                                });`