title: Jsfiddle unclosed regular expression
body: <p><a href="https://i.stack.imgur.com/MDdDk.png" rel="noreferrer"><img src="https://i.stack.imgur.com/MDdDk.png" alt="enter image description here"></a>Anyone know why jsfiddle is giving me this error when testing jsx. </p>
  
  <blockquote>
    <p>unclosed regular expression</p>
  </blockquote>
  
  <p><a href="https://jsfiddle.net/chapster11/LzdfLy53/" rel="noreferrer">https://jsfiddle.net/chapster11/LzdfLy53/</a></p>
  
  <pre><code>const combobox = () =&gt; (
      &lt;div id="box"&gt;
      working
    &lt;/div&gt;
  );
  
  ReactDOM.render(&lt;combobox /&gt;, document.querySelector("#app"));
  </code></pre>
  
  <p>-</p>