Putting my browser in a state where the back button doesn't let me leave the site is the definition of breaking the back button. Worse than those back button po

Putting my browser in a state where the back button doesn't let me leave the site is the definition of breaking the back button. Worse than those back button pop-ups that only fire once (this is like a popup that fires every time). Definitely check out window.history.replaceState as mh- suggests.