Hi, actually have this:    <script src="//cdnjs.cloudflare.com/ajax/libs/gsap/1.10.1/TweenMax.min.js"></script>   so cdn could failed, which is the most optimal way to use my local copy?   <script type='text/javascript'>   window.TweenMax || document.write('<script src="gsap/TweenMax.min.js">\x3C/script>') </script>   Thanks in advance.