add webkitSupportsFullscreen

docs/assets/js/mobile.js

@@ -1,13 +1,14 @@
 var vConsole = new VConsole();
 var art = new Artplayer({
     container: '.artplayer-app',
-    url: '/assets/sample/video.mp4',
+    url: 'https://artplayer.org/assets/sample/video.mp4',
     title: 'One More Time One More Chance',
     poster: '/assets/sample/poster.jpg',
     autoSize: true,
     loop: true,
     mutex: true,
     theme: '#ffad00',
+    fullscreen: true,
     fullscreenWeb: true,
     miniProgressBar: true,
     moreVideoAttr: {