I am working on a nextjs project, for user authentications I am using firebase’s signInWithPhoneNumber for phone number verification, after successfull verification I get a firebase user which also has the getIdToken method to fetch a new token. My problem is after I refresh the page I cannot use this method to fetch a token as the currentUser user becomes undefined after page reload.

i would like to use unstable_cache here but i am getting error above.
My ideia is caching my data that is coming from firesotre.