[atlasduo]

Right off the bat, I'd recommend adding a prompt if the window has any user input to prevent fat-finger tab closing (and therefore losing all work). Alternatively, consider using service workers.

[kukuhsain]

Agree, thanks for the feedback :)

[daveguy]

And/or persist the buffer as long as possible. Especially from "back button" or browsing to another page and then navigating back.