Imagine you opened new fresh HTML5-based game. It requested fullscreen, you allowed. You finished game and clicked on "Exit fullscreen" button. Then, instead of canceling fullscreen mode, you got just perfect illusion of it. Site author created almost complete replacement of your browser or ever your OS UI. So when you created new tab and entered news.ycombinator.com address it was loaded via proxy.
May be it's already happened in this demo. Wake up, Neo, and press Esc to exit from Matrix, ...sorry, from Fullscreen Mode.
Imagine you opened new fresh HTML5-based game. It requested fullscreen, you allowed. You finished game and clicked on "Exit fullscreen" button. Then, instead of canceling fullscreen mode, you got just perfect illusion of it. Site author created almost complete replacement of your browser or ever your OS UI. So when you created new tab and entered news.ycombinator.com address it was loaded via proxy.
May be it's already happened in this demo. Wake up, Neo, and press Esc to exit from Matrix, ...sorry, from Fullscreen Mode.