The quick start tutorial has various issues if you are trying to use this with the angular-cli which if you are using Angular (4) you should be. Including issues with the AUTH_PROVIDERS not working, however there are other workarounds for this. Another of the issues is that the use of angular2-jwt …

Issues with the Angular2 Quickstart

Topic		Replies	Views
Angular quickstart incompatible with latest version of angular2-jwt Get Help angular-2 , quickstart , angular2-jwt	3	4233	March 2, 2018
Auth http: No JWT present or has expired Get Help jwt , auth , ionic2	1	4989	March 2, 2018
Issue with token (ANGULAR APP) Get Help angular , auth0	3	3176	December 24, 2019
Updates to Angular documentation / samples needed Get Help angular , angular-2 , angular2 , angular4	9	5884	July 25, 2019
Invalid token - `state` does not match Get Help	2	4608	November 22, 2018