As far as I can see, although createAuth0 has the client_id parameter in the creation, it appears at the this.$auth0 variable, but it does not go to the URL for the loginWithRedirect:
https://dev-1flzkotdey2fm74y.us.auth0.com/authorize?scope=openid+profile+email&audience=https%3A%2F%2Fdev-1flzkotdey2fm74y.eu.auth0.com%2Fuserinfo&redirect_uri=http%3A%2F%2Flocalhost%3A1337&response_type=code&response_mode=query&state=OXZxQU1qOWFnM05uR0pnU1Jlc2N4OEFkdVZ5aG45N0NJY1lvemdTY1dKZA%3D%3D&nonce=aHFMQnJITGxsZ0U4TUNyfjdTWXFNSUdDVktlQVlpVDJyQS5DflVxQVVhdQ%3D%3D&code_challenge=DqvNFGsswMkTjOCRvQFVkqp1iKst5BxbhgK1vY7F2Kc&code_challenge_method=S256&auth0Client=eyJuYW1lIjoiYXV0aDAtdnVlIiwidmVyc2lvbiI6IjIuMS4wIn0%3D