Now some huge images are going to be downloaded. Note the importance of being able to record the mouse activity once the DOM is loaded.
These three images are more than 1MB in size. So, the window load event won't fire after all the page is fully rendered!
An alert window will fire once the page is fully loaded. It's almost sure that the mouse recording will finish before that alert window.
Wait 10 seconds and then a button will appear under this text