title: Implementing localized 404 page with Firebase hosting
body: <p>Say my web app has two locales: English(<code>myapp.com/en/</code>) and French(<code>myapp.com/fr/</code>). I want to localize my 404 pages, so that request to <code>myapp.com/en/non-existent</code> or <code>myapp.com/non-existent</code> would return an English version of the 404 page and request to <code>myapp.comm/fr/non-existent</code> would return a French one. </p>
  
  <p>However, it seems like Firebase Hosting does not provide such functionality by default, as it only allows a single 404 page(<a href="https://firebase.google.com/docs/hosting/full-config#404" rel="nofollow noreferrer">source</a>)</p>
  
  <p>So, is there a way of implementing a localized 404 page with Firebase Hosting?</p>