Steps to reproduce the problem:
1. Attach an onunload event to a page.
2. Open the page on Chrome on Android.
3. Close the tab in Chrome - the event doesn't fire.

What is the expected behavior?
The onunload event is supposed to fire when the tab is closed.

What went wrong?
Attaching an event like this:
document.body.onunload = function() {foo()};
doesn't fire when the tab is closed on Chrome 69 on Android.

It works properly on Desktop Chrome and all FireFox versions. It also works correctly when a page is reloaded. When tested on Chrome 67 it also used to work when the tab was closed.

Did this work before? Yes Chrome 67

Does this work in other browsers? Yes

Chrome version: 69.0.3497.91  Channel: stable
OS Version: 8.1
Flash Version: 

The onbeforeunload event also doesn't work.