Could auth.signInWithSSO accept queryString login_hint?

[brianq]

I have a site where I've implemented a login page with a rudimentary domain discovery (based on the user's email address domain).

Retrieving the providerId for the given email domain and calling auth.signInWithSSO() works great, however the user is taken to their (Azure) login page where they have to re-enter the email address again.

Might it be possible to pass a queryString.login_hint parameter in options (like how it's done with signInWithOAuth) or is there any other way of doing this?

[chris417]

+1 - be great to have this.