I'm having issues with Safari not going fullscreen as expected.
When the console is open or there are nav-bars around the container div, the fullscreen operation will show black bars where you would expect the console to be, or where the container should have expanded into.
Can this be resolved?
<script>
var fullscreen = () => document.getElementById('container').webkitRequestFullscreen()
</script>
<div id="container">
<button onclick="fullscreen()" id="btn">FULL SCREEN</button>
</div>