CORS错误 - Ajax请求返回与纽约时报API间歇性故障(CORS Error - Ajax

我想提出几个Ajax请求到纽约时报国会API ，而迭代区的阵列（1〜5）。我只能够在平均成功返回2个请求，剩下的返回：

XMLHttpRequest cannot load https://api.nytimes.com/svc/politics/v3/us/legislative/congress/members/house/OR/2/current.json?api-key=xxxxxxx. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:9001' is therefore not allowed access.

看来，没有模式这些缺陷。即使使用相同的_district数倍次失败，看似随意。

我的代码：

var title_element,
    title_render,
    district_numbers = ['1', '2', '3', '4', '5'],
    element_ids = ['ushd1', 'ushd2', 'ushd3', 'ushd4', 'ushd5'],
    apiKey = 'api-key=xxxxxxxxxxx',
    baseUrl = 'https://api.nytimes.com/svc/politics/v3/us/legislative/congress/members/house/OR/',
    orUsHouseMembers,
    frag;

  for (var i = 0, total_districts = district_numbers.length; i < total_districts; i++) {
      (function (i) {
        var myUrl = baseUrl + district_numbers[i] + '/current.json?' + apiKey;

        $.ajax({
          url: myUrl,
          dataType: 'json',

          success: function (data) {
            console.log('\nSUCCESS: ' + myUrl);
            title_element = document.getElementById(element_ids[i]);        
            title_render = document.createTextNode(data.results[0].name + ' - District ' + data.results[0].district );
            title_element.appendChild(title_render);
          },

          error: function (data) {
            console.log('\nFAIL: ' + myUrl);
          }
        })
      })(i);
  }

我尝试添加Access-Control-Allow-Origin: '*'和所有常见的CORS的东西，但我不希望这是一个真正的CORS问题，因为失败过间歇性

东西在我的代码不妥或可能的API？