This test checks that onload events fire on iframe and object elements when their contents finish loading, and that these are separate event objects from those that fire on the body inside the frame. If it passes, you will see 6 blocks below, each with a three-line message that ends in false. Fired load event on body inside iframe Fired event on iframe even though default was prevented Outer event same as inner: false ------ Fired load event on body inside iframe Fired event on iframe Outer event same as inner: false ------ Fired load event on body inside object Fired event on object even though default was prevented Outer event same as inner: false ------ Fired load event on body inside object Fired event on object even though propagation was stopped Outer event same as inner: false ------ Fired load event on body inside object Fired event on object even though propagation was stopped Outer event same as inner: false ------ Fired load event on body inside object Fired event on object Outer event same as inner: false ------