1 EVENT(webkitfullscreenchange)
2 EXPECTED (document.webkitCurrentFullScreenElement == '[object HTMLHtmlElement]') OK
3 EVENT(webkitfullscreenchange)
4 EXPECTED (document.webkitCurrentFullScreenElement == '[object HTMLSpanElement]') OK
5 EVENT(webkitfullscreenchange)
6 EXPECTED (document.webkitCurrentFullScreenElement == '[object HTMLHtmlElement]') OK
7 EVENT(webkitfullscreenchange)
8 EXPECTED (document.webkitCurrentFullScreenElement == 'undefined') OK