SPA Authentication Sample

Gosh I feel this should be easy - but I dont see it.
Thought I followed all the steps. I am using CentOS 7.
I have the npm installed, and running - last I see there is Application running on port 3000.

I have my small web page to start.
SPA Authentication Sample

Welcome to our page!
Login Logout

The Login and logout buttons are GHOSTED… I hit F12 on console for chrome and nothing shows.
Not sure what I missed ?