As far as I can tell, the path to the UMD version of React 16 changed, which makes it impossible to test the latest version of React through the test fixtures. We probably need to add a condition to the react loader to change the path above a certain version:

https://github.com/facebook/react/blob/master/fixtures/dom/src/react-loader.js#L45-L46


import React from 'react';
import Fixture from '../../Fixture';
class RangeKeyboardFixture extends React.Component {
  constructor(props, context) {
    super(props, context);
    this.state = {
      keydownCount: 0,
      changeCount: 0,
    };
  }
  componentDidMount() {