Firebase Auth Doesn't Work In Safari

I have Firebase auth implemented in my web app as suggested in the tutorial: function initApp() { firebase.auth().onAuthStateChanged(function(user) { if (user) {

Solution 1:

I figured it out. When I was loading the site from finder local storage didn't save the auth state (I don't know why) but when I uploaded the site and accessed it from its URL then everything worked as expected.