Reviews - Autosave/Check when leaving

I keep losing my typed-in notes on Reviews when they are in progress. For example, if I accidentally click on "Home" when I am scrolling through the review, I am taken to the home screen and all my notes are lost as the review has not saved.
This is really time consuming as I then have to re-type my notes, and often ask my learners and their mentors to repeat themselves, which harms my relationship with them.

My current workaround is to click Save as often as possible, but as you might guess this isn't a perfect solution.

Could there be an autosave feature in the review form(s)?
Alternatively, could you add one of those "do you want to leave this page, your changes won't be saved" popup dialogs to check before a review form is left?