I followed the instructions on the
auth0 multitenant website sample.
I am able to get the app running on my machine. In addition, I can sign in as email@example.com. The Auth0 management logs also show a successful sign in.
However once the sign-in process returns (i.e. to URL http://yourcompany.com:3000/callback?code=a-OXzRR7Bx5i_IUd&state=OrYMO2xxSennLMUZsKfIvW0i), I get the following message on the browser:
Can you please tell me where should I look for the next bit of investigation?