Can I prevent people from hitting back on browser to leave my game (or a warning/ok button)?

I have a website i'm making that's effectively a construct game.. and the navigation of pages us done through the site. 8bitwidgets.com

I'm just figuring out how i could keep someone from (out of habit) click the back button at the top of their browser rather than my own internally managed site back buttons.

Thanks,

Caleb

It's possible to warn before closing the tab with scripting and the "beforeunload" event:

window.addEventListener("beforeunload", e =>
{
	// if (hasUnsavedChanges)
	e.returnValue = "Save changes?";
);