Below is my code, it work on android mobile browsers but not ios mobile browsers, can you know fix it, thank you
launchIntoFullscreen(document.documentElement);
function launchIntoFullscreen(element)
{
if (element.requestFullscreen)
element.requestFullscreen();
else if(element.mozRequestFullScreen)
element.mozRequestFullScreen();
else if(element.webkitRequestFullscreen)
element.webkitRequestFullscreen();
else if(element.msRequestFullscreen)
element.msRequestFullscreen();
}