I am getting a :
Uncaught TypeError: user.reauthenticate is not a function
with this code below.
var user = firebase.auth().currentUser;
var credentials = firebase.auth.EmailAuthProvider.credential(user.email,'foo');
console.log(user) // the currentUser object
console.log(user.reauthenticate) // undefined
user.reauthenticate(credentials)
.then(() => {
// Do something
}, err => console.log(error));
I just followed this guide and this accepted answer by Frank van Puffelen.