title: Button is being triggered by spacebar after clicked once
body: <p>I have an input field:</p>
  
  <pre><code>&lt;input id="audio_file" type="file" accept="audio/*" /&gt;
  </code></pre>
  
  <p>my problem is that once I've clicked it, if I press space after that it simulates the input being clicked again.  How do I stop this?</p>