1. Latest 1.8.1 (this code was working on 1.8.0, I verified it)

2. Latest Chrome 21 (although my colleague informed me it is not reproducible in IE 9, but I cannot verify his claim)

3. OSX 10.8

4. Use the following code:

$('body').addClass('has-active-menu');

$(window).on('mouseup', 'body.has-active-menu', function () {

alert('test');

});

Then click anywhere on the screen, nothing happens. You can try mousedown too, doesn't work either.

5. This code worked in 1.8.0 and 1.7, it is valid code (delegation of the window/html tag to the body tag). My expectation is that alert will fire.