Autosave feature for notes.

I think it would be a really good idea to have an autosave feature for list notes because there have been times where I've accidentally pressed the backspace button and it sent me back to the previous page and I have to write everything all over again. It's really frustrating when it happens and I would be surprised if it hasn't happened to anyone else besides me. I think an autosave feature that saves your progress is a really good idea.

In Gmail (Google's mailbox), when you try to leave a page before saving/closing whatever you were doing, a pop up message warns: "Confirm Navigation - There is currently a request to the server pending. You may lose recent changes by navigating away. Are you sure you want to leave this page? Stay on this Page / Leave this Page".

That would be good too. Even though this doesn't happen to me all the time, it happens sometimes and I think stuff like this should be a thing of the past.