HTML5 - Prevent Fullscreen Mode
问题 I'm using the Fullscreen API with an embedded YouTube video to detect whether or not the browser window has entered fullscreen mode. I have that working great. What I'd like to do is prevent from occurring the default behavior of entering fullscreen mode. I'd like to put in my own fullscreen mode logic so that I can overlay DOM elements on top of the YouTube Player. Currently, I can exit fullscreen mode immediately after entering it, but that results in a poor and confusing experience for the