Popup login window is not closed after authentication

Why is the popup login window not closed after a successful authentication on some browsers?

There are a couple of known incompatibility issues that prevent popup mode in Lock to function properly. In particular, the popup window will not close after a successful authentication if any of these conditions occur:

  • Operating system is iOS and browser is Chrome or Firefox.
  • Browser is Internet Explorer and your application is in a security zone that has a different Protected Mode setting than the security zone for https://{yourdomain}.auth0.com.

Internet Explorer has the concept of different security zones. Each security zone has different security settings, including one called “Protected mode”:

!(Lock Authentication Modes).