If you try to navigate away from an assignment preview without saving, you get this warning text:
"Alert: If you choose to exit without clicking any action button at the bottom of this page, you will lose your work. Please choose one of these buttons or 'Continue' to navigate to your chosen page and abandon your work in this page."
However there's not 'Continue' button. Assuming that the text doesn't refer to a button but simply means if you navigate elsewhere you'll lose your changes, Continue should not be capitalized or quoted and/or the warning should be better phrased.