Make remote third party static assets local

 $def with ()
 $var title: Live Stream
 
-<link href=https://vjs.zencdn.net/5.8.8/video-js.css rel=stylesheet>
-<script src=https://vjs.zencdn.net/5.8.8/video.js></script>
-<script src=https://cdnjs.cloudflare.com/ajax/libs/videojs-contrib-hls/3.6.12/videojs-contrib-hls.js></script>
+<link href=/assets/video.js-5.8.8.css rel=stylesheet>
+<script src=/assets/video.js-5.8.8.js></script>
+<script src=/assets/video.js-contrib-hls-3.6.12.js></script>
 <div id=stream></div>
 <script>
 fetch('/stream-stats')