polyfill不能在IE11上运行

Question

我已经使用fetch创建了对象，我正在尝试使用polyfill使其在IE11上工作，但它无法正常工作。我尝试使用https://github.com/stefanpenner/es6-promise https://github.com/taylorhakes/promise-polyfill https://github.com/github/fetch

在我脑海里，我有

<!-- Bootstrap -->
<link href="/assets/bootstrap/dist/css/bootstrap.min.css" rel="stylesheet" />
<link href="/assets/bootstrap/dist/css/bootstrap-theme.min.css" rel="stylesheet" />
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="/assets/jquery/dist/jquery.js"></script>
<script src="/assets/jquery-ui/jquery-ui.js"></script>

<script src="/assets/fetch/fetch.js"></script>
<script src="/assets/es6-promise/dist/es6-promise.min.js"></script>

JavaScript代码

//To add to window
if (!window.Promise) {
  window.Promise = Promise;
}
const CommsMatrix = {
        getCMDStatuses: function(){
        return fetch('/api/user/list/comms/matrix/data/format/json'+'?csrf='+$.csrfParam('csrf')+'&select=distinct(status)&orderby=status', {
          // body: new URLSearchParams({ csrf: $.csrfParam('csrf'), select:
            // 'distinct(status)', orderby: 'status' })
            credentials: 'include'
        })
        .then(response => {
          return response.headers.error ? Promise.reject(response.headers.error) : response.json();
        }).then(body => {
          return body.body.recordset.record.map(v => v.STATUS)
        })
      },
      getSupportedProtocols: function(){
        return fetch('/api/user/list/sys/list/protocols/format/json'+'?csrf='+$.csrfParam('csrf')+'&orderby=name', {
          // body: new URLSearchParams({ csrf: $.csrfParam('csrf'), orderby:
            // 'name' })
            credentials: 'include'
        })
        .then(response => {
          return response.headers.error ? Promise.reject(response.headers.error) : response.json();
        }).then(body => {
          return body.body.recordset.record.map(v => v.NAME)
        })
      }
}

Promise.all([CommsMatrix.getCMDStatuses(), CommsMatrix.getSupportedProtocols()])
    // Destructuring the 2-item array into statuses and protocols variables
    .then(([ statuses, protocols ]) => {
        // You've got statuses and protocols loaded
        selectField = HTMLFormTag.createSelect(statuses, true, false, 'To implement');
        selectField.setAttribute("name", 'status['+counter+']');
        selectField = selectField.outerHTML;

        selectProtocolField = HTMLFormTag.createSelect(protocols, true, false, 'TCP');
        selectProtocolField.setAttribute("name", 'protocol['+counter+']');
        selectProtocolField = selectProtocolField.outerHTML;

        // Automatically add a first row of data
        $('#addRow').click();
    });

在IE11中，它在3个地方抱怨。 .then(response => {以及.then(([ statuses, protocols ]) => {和SCRIPT438: Object doesn't support property or method 'csrfParam'

上的语法错误