title: Refresh expired jwt in browser when using Google Sign-In for Websites
body: <p>I largely followed <a href="https://developers.google.com/identity/sign-in/web/" rel="nofollow">this</a> tutorial on how to do client authentication with Google Sign-In, get a JWT, and verify the JWT on the server on each request using Google's tokeninfo endpoint.</p>
  
  <p>Everything works great except the tokens expire after 60 min and I don't know how to refresh the token.</p>