Showing /signup instead of /login using Universal Login and auth0-spa-js

[dan.woda]

Hi @jacobd

Welcome to the Auth0 Community Forum!

Take a look at this topic, I think it covers it.

How to open login/signup on the Universal login (hosted page)?

Generally it is not recommended to send custom parameters to the /authorize endpoint. There is a login_hint parameter however, which is part of the standard. Generally it is used for passing the email address that the user is trying to log in as, but can also be used for this type of scenario where you want to tell the login page how to render. So, if you switch to login_hint instead of mode, then you are sticking more with that OIDC standard. Just beware that you should “validate” the value…

Let me know.

Thanks,
Dan