Solution -

document.observe('keydown', function(event){
if(event.keyCode === 8) {
console.log("***********************CODE " + event.keyCode);
//backspace = true;
} 
});

My goal is to prevent users being navigated away from the page on pressing the backspace key

Hi Mike,

Is there anything you are asking or you just wanted t share your solution with us?

Regards,
Vlad Turian