this the request uri
https://mydomain.auth.us-east-1.amazoncognito.com/?response_type=code&client_id=<client_id>' + '&redirect_uri=http://localhost:8080/'
it redirect to this uri with error that chown in image
https://mydomain.auth.us-east-1.amazoncognito.com/error?error=redirect_mismatch&client_id=<client_id>
Note that: everything works fine with login