// Function to make the video fullscreen function goFullscreen() { var iframe = document.getElementById(‘video-iframe’); // Check if the iframe can enter fullscreen if (iframe.requestFullscreen) { iframe.requestFullscreen(); } else if (iframe.mozRequestFullScreen) { // Firefox iframe.mozRequestFullScreen(); } else if (iframe.webkitRequestFullscreen) { // Chrome, Safari iframe.webkitRequestFullscreen(); } else if (iframe.msRequestFullscreen) { // IE/Edge iframe.msRequestFullscreen(); } } // Trigger fullscreen automatically once the iframe has loaded (onload event) document.getElementById(‘video-iframe’).onload = function() { goFullscreen(); // Try to make the video go fullscreen once it’s loaded }; // Optional: Add an event listener for the fullscreen button document.getElementById(‘fullscreen-btn’).addEventListener(‘click’, goFullscreen);