Redirect to Firebase Hosting custom domain

Question

I have setup a custom domain with Firebase Hosting (eg. myapp.domain.com).

How can one redirect (or turn off) the default Firebase Hosting URL (eg. myapp.firebaseap

Answer 1

You cannot turn off the subdomain. Your app will always be available on https://myapp.firebaseapp.com and whatever custom domain you've set up.

To redirect people, you can add a canonical link to your HTML:

Read more about that in Specify your canonical on the Google Webmaster Central Blog.