The permission state set from the PermissionRequested event is saved in the profile by default; it persists across sessions and becomes the new default behavior for future PermissionRequested events. Browser heuristics can affect whether the event continues to be raised when the state is saved in the profile. Set the SavesInProfile property to FALSE to not persist the state beyond the current request, and to continue to receive PermissionRequested events for this origin and permission kind.