Unable to get property 'configurable' of undefined or null reference

[andrew19881123]

In an Angular 4 web app with Internet Explorer 11 i get this error:

Unable to get property 'configurable' of undefined or null reference

relative to this lines:

// only attempt to set the name if's configurable (which it should be on node > 0.12)
  if (Object.getOwnPropertyDescriptor(generateUUID, 'name').configurable) {
    Object.defineProperty(generateUUID, 'name', {value: name});
  }

[broofa]

Regression introduced in #270 :-/