Auth0 lock Criipto angular

I use Angular 7, auth0 locks and trying to implement Swedish BankID with Criipto.
First of all: what callback url should I add on criipto while testing? my auth0 domain or localhost:4200 .
Second of all: I get the response as a post request, and the lock can’t handle that so I only get Cannot POST /.

How shall I fix this?