I can't trigger the unload event in Chrome

Question

This code runs fine on Firefox, but I can\'t make the unload event work on Chrome anymore. Did Chrome stop supporting the unload event?

This is my c

Answer 1

You don't trigger anything - you just execute the expression which you want to add as a handler:

window.onunload = function(event) {
    alert("Are you sure 2?");
};