function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
// Edge 15.x does not fire 'progress' events on uploads.
// See https://github.com/transloadit/filerobot/issues/945
// And https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/12224510/
export default function supportsUploadProgress(userAgent) {
  // Allow passing in userAgent for tests
  if (userAgent == null) {
    userAgent = typeof navigator !== 'undefined' ? navigator.userAgent : null;
  }
  // Assume it works because basically everything supports progress events.
  if (!userAgent) return true;
  var m = /Edge\/(\d+\.\d+)/.exec(userAgent);
  if (!m) return true;
  var edgeVersion = m[1];
  var _edgeVersion$split = edgeVersion.split('.'),
    _edgeVersion$split2 = _slicedToArray(_edgeVersion$split, 2),
    major = _edgeVersion$split2[0],
    minor = _edgeVersion$split2[1];
  major = parseInt(major, 10);
  minor = parseInt(minor, 10);

  // Worked before:
  // Edge 40.15063.0.0
  // Microsoft EdgeHTML 15.15063
  if (major < 15 || major === 15 && minor < 15063) {
    return true;
  }

  // Fixed in:
  // Microsoft EdgeHTML 18.18218
  if (major > 18 || major === 18 && minor >= 18218) {
    return true;
  }

  // other versions don't work.
  return false;
}