Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The login read-only property of the Navigator interface provides access to the browser's NavigatorLogin object, which a federated identity provider (IdP) can use to set its login status when a user signs into or out of the IdP.
See Update login status using the Login Status API for more details of how this is used.
A NavigatorLogin object.
/* Set logged-in status */
navigator.login.setStatus("logged-in");
/* Set logged-out status */
navigator.login.setStatus("logged-out");