diff --git a/js/vd.js b/js/vd.js
index 5c91dff..fe8e758 100644
--- a/js/vd.js
+++ b/js/vd.js
@@ -277,7 +277,12 @@ const vd = (function() {
         });
 
         player._oldRequestFullscreen = player.requestFullscreen;
-        player.requestFullscreen = () => {
+        player.requestFullscreen = function() {
+            var player = document.getElementById(this.id());
+            if (player === null) {
+                return;
+            }
+            player = typeof player.player === "function" ? player.player() : player.player;
             player._oldRequestFullscreen(...arguments);
             setTimeout(() => {
                 if (screen.orientation) {
@@ -287,7 +292,12 @@ const vd = (function() {
         };
 
         player._oldExitFullscreen = player.exitFullscreen;
-        player.exitFullscreen = () => {
+        player.exitFullscreen = function() {
+            var player = document.getElementById(this.id());
+            if (player === null) {
+                return;
+            }
+            player = typeof player.player === "function" ? player.player() : player.player;
             player._oldExitFullscreen(...arguments);
             setTimeout(() => {
                 if (screen.orientation) {
@@ -333,10 +343,15 @@ const vd = (function() {
                     // F -> toggle fullscreen
                     case 70:
                         e.preventDefault();
-                        if (player.isFullscreen()) {
-                            player.exitFullscreen();
+                        let p = document.getElementById(player.id());
+                        if (p === null) {
+                            break;
+                        }
+                        p = typeof p.player === "function" ? p.player() : p.player;
+                        if (p.isFullscreen()) {
+                            p.exitFullscreen();
                         } else {
-                            player.requestFullscreen();
+                            p.requestFullscreen();
                         }
                         break;