[removed] in Chrome: what is the most recent fix?

Question

Obviously, window.onbeforeunload has encountered its fair share of problems with Chrome as I\'ve seen from all the problems I\'ve encountered. What\'s the most recent work a

Answer 1

As of 69.0.3497.92, Chrome has not met the standard. However, there is a bug report filed, and a review is in progress.

• Chrome requires returnValue to be set by reference to the event object, not the value returned by the handler.
• The standard states that prompting can be controlled by canceling the event or setting the return value to a non-null value.
• The standard states that authors should use Event.preventDefault() instead of returnValue.
• The standard states that the message shown to the user is not customizable.

window.addEventListener('beforeunload', function (e) {
    // Cancel the event as stated by the standard.
    e.preventDefault();
    // Chrome requires returnValue to be set.
    e.returnValue = '';
});
    
window.location = 'about:blank';