title: How to make hugo server use custom 404.html
body: <p>doc page <a href="https://gohugo.io/templates/404/#automatic-loading" rel="nofollow noreferrer">https://gohugo.io/templates/404/#automatic-loading</a>
  says </p>
  
  <p><em>hugo server will not <strong>automatically</strong> load your custom 404.html file, but you can test the appearance of your custom “not found” page by navigating your browser to /404.html.</em></p>
  
  <p><strong>QUESTION:</strong>
  is there a way to explicitly configure hugo server use custom 404 page?</p>