[Harlowe] Is it possible to modify history manually?

After reading this thread I thought that maybe there is some way of accessing Harlowe's history manually and writing it, using Javascript, if the History is some kind of Javascript variable.

Would that be possible? I basically want to delete history as the player goes: there is no back button in my game, so only the current state of variables is needed, and my game is big and could run into problems with LocalStorage.

Thanks!