I can't count the number of times I've noticed a typo in a form, hit shift-tab one time too many or few, hit backspace and ended up losing all of the info I fil

I can't count the number of times I've noticed a typo in a form, hit shift-tab one time too many or few, hit backspace and ended up losing all of the info I filled in. The forward button mostly just leads to "resubmit form data?", instead of bringing me back.