[bailicangdu/vue2-elm]登录时总是用户名参数错误

这个要怎么解决啊，求解 ` if (type === 'post') { config = { baseURL: '', headers: { 'Accept': 'application/json', 'Content-Type': 'application/json' }, withCredentials:true, url: url, method: type, }; Object.defineProperty(config, 'body', { value: JSON.stringify(data) }); console.log('axios config object is ', config); }

try{
    const response = await ajax(config);
    return response;
}catch(error){
    throw new Error(error);
}

`

export const login = (username, password, captcha_code) => axios('/v2/login', { username, password, captcha_code }, 'post');

login(this.username, this.password, this.verifyCode).then( res => { console.log('login ', res); });