How to test application login URI locally if localhost is not valid

Hi @sam77

Welcome to the Auth0 Community!

Thank you for posting your question; due to security reasons (more about that here → Security Risks of Using Localhost for Callback URL ), We are not allowing the localhost for the application login uri. To workaround this, replace the localhost with 127.0.0.1Application Login URI field payload validation error for https://localhost:3000/authorize - #20 by tunedev

Thanks
Dawid