title: Using crypto-js in React
body: <p>I generated an app using <code>create-react-app</code> and I want to use
  <a href="https://www.npmjs.com/package/crypto-js" rel="noreferrer">crypto-js</a>
  I am getting the following error</p>
  
  <blockquote>
    <p><code>crypto.sha256() is not a function</code></p>
  </blockquote>