Google chrome onbeforeunload wrong behavior with iframe

Question

Let say I have two pages. One of them contains another one inside as iframe. If you subscribe to onbeforeunload event on the parent page, then this event doesn\'t triggers if yo

Answer 1

the below code will work across all the browsers

if (typeof window.addEventListener != 'undefined') {
    window.addEventListener('beforeunload', test, false);
}
else if (typeof document.addEventListener != 'undefined') {
    document.addEventListener('beforeunload', test, false);
}
else if (typeof window.attachEvent != 'undefined') {
    window.attachEvent('onbeforeunload', test);
}

else {
    if (typeof window.onbeforeunload == 'function') {
        window.onbeforeunload = function() {
            test();
        };
    }
    else {
        window.onbeforeunload = test;
    }
}

function test(){ alert('working');}

try this once ...