title: ReactJS with wowJS not working
body: <p>I can't seem to get <a href="https://github.com/matthieua/WOW" rel="noreferrer">wowJS</a> working.</p>
  
  <p>I do <code>import WOW from 'wowjs';</code></p>
  
  <pre><code>componentDidMount() {
    const wow = new WOW();
    wow.init();
  }
  </code></pre>
  
  <p>but I get <code>TypeError: _wowjs2.default is not a constructor</code></p>
  
  <p>If I do <code>import { WOW } from 'wowjs';</code></p>
  
  <p>I get</p>
  
  <p><code>
  MutationObserver is not supported by your browser.
  WOW.js cannot detect dom mutations, please call .sync() after loading new content.
  </code></p>
  
  <p>If I do </p>
  
  <pre><code>componentDidMount() {
    const wow = new WOW();
    wow.sync();
  }
  </code></pre>
  
  <p>Notice the <code>wow.sync()</code></p>
  
  <p>I get <code>TypeError: Cannot read property 'nodeType' of undefined</code></p>
  
  <p>Stuck there :(</p>