OptionalcancelExplicitly cancel an interactive attempt, including a COOP-separated popup.
Current identity, or null. Must not perform interactive work.
Re-establish a session from cache, silently. Returns null if not signed in.
Interactive sign-in. Called only from a user gesture.
Implemented by providers declaring
auth: 'interactive'.restoreruns at registration and must be silent and non-blocking: no popups, no navigation.signInmay open a popup and must therefore only be called from a user gesture — the host guarantees this.