title: Google sign-in URI
body: <p>I'm coding from my garage, already deployed a GCloud Function, but don't have a corporate website yet. So my application origin URI is <code>localhost:###</code> so far. Now I want to integrate my web project with my GCF, following <a href="https://developers.google.com/identity/sign-in/web/sign-in?refresh=1" rel="nofollow noreferrer">Integrating Google Sign-in</a> I'm stuck because I just don't have a registered website for origin URI</p>
  
  <p>Is an official website URI required to proceed?</p>
  
  <p><a href="https://i.stack.imgur.com/6iwyP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6iwyP.png" alt="enter image description here"></a></p>