Walkthrough
Open the app at fogo.howtofirebase.com.
​Sourcemaps are currently broken in Chrome for Fogo as of July 2018.
This is best done in Firefox.
Right-click inspect element and select the Debugger tab. Then click command + P to search for and open two files:
firebase-authentication/src/services/auth.service.js,and
firebase-authentication/src/index.js.
