我是用dva框架,用fetch跨域請(qǐng)求。是成功拿到數(shù)據(jù)，但是程序里返回的確是error，不知錯(cuò)在哪里，望指教

1.看了下控制臺(tái)，是成功拿到數(shù)據(jù)。如圖：

打印了下返回結(jié)果，返回的確是error，如圖：

2.代碼如下：

import fetch from 'dva/fetch';

function parseJSON(response) {
  return response.json();
}

function checkStatus(response) {
  if (response.status >= 200 && response.status < 300) {
    return response;
  }

  const error = new Error(response.statusText);
  error.response = response;
  throw error;
}

/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [options] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export default function request(url, options,transform) {

const headers= {
    'Accept': 'application/x-www-form-urlencoded',
    'Access-Control-Allow-Origin':'*',
    'Access-Control-Allow-Methods': 'POST, GET, OPTIONS, PUT, DELETE',
    'Access-Control-Allow-Credentials': true
};
const parmas=Object.assign(headers,options,{credentials: 'include'});
  return fetch(url,parmas)
    .then(checkStatus)
    .then(parseJSON)
    .then(data => {
      
      if(transform instanceof Function){
        return transform(data);
      }

      return data;
    })
}

3.發(fā)起請(qǐng)求的地方：

effects: {
    *queryUser ({payload}, {call, put}) {
      const data = yield call(Services.userInfo, parse(payload));
      console.log(data);
      if (data.success) {
      
      }else{
      
      }
        
}