Function createCORSRequest

src/utils/upload.js:3–17

(method, url)

'use strict';

function createCORSRequest(method, url) {
  var xhr = new XMLHttpRequest();
  if ('withCredentials' in xhr) {
    // XHR for Chrome/Firefox/Opera/Safari.
    xhr.open(method, url, true);
  } else if (typeof XDomainRequest !== 'undefined') {
    // XDomainRequest for IE.
    xhr = new XDomainRequest();
    xhr.open(method, url);
  } else {
    // CORS not supported.
    xhr = null;
  }
  return xhr;
}

function ajaxUpload({url, name, cors, file, onProgress, onLoad, onError, withCredentials}) {
  let data = new FormData();