Inactivity Logout Warning Modal Not Showing

We have Inactivity Logout enabled for our embeds, but we don’t see the logout modal popup. We are using `@looker/embed-sdk` to enable communication with the parent page and the embed. These are private embed Instead, if a user has passed the 15 minutes, they’ll just see a message that “You are not authenticated to view this page”. I do see the `seconds_until_inactivity_timeout` in the heartbeat url. It all looks right, with the exception of our users not being presented with the Logout modal. 

Please let us know what we need to do get the Inactivity Logout Modal to show.

1 0 107