Is there a way to determine that the browser window was closed?

Question

How is it possible to identify that the browser\'s close button was clicked?

Answer 1

There is usually an event which fires when the user leaves the page (unload?) - this may be browser specific.

There is also a property, window.closed, which is set on the window object after its associated window is closed. This is typically used when you have a reference to a popup window.

I'm not sure whether the unload event would be fired before or after the "closed" property is set - you'll have to experiment.

It may be that you can't distinguish between a closed window and a browser which has gone to another site.