From a0cb7ec10f52745c9e22a8785e71b07fa6c7ade3 Mon Sep 17 00:00:00 2001
From: Antoine Vandecreme <ant.vand@gmail.com>
Date: Mon, 17 Mar 2014 17:33:26 -0400
Subject: [PATCH] Fix fullscreen test on IE11

---
 src/fullscreen.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fullscreen.js b/src/fullscreen.js
index 20009695..8ed71262 100644
--- a/src/fullscreen.js
+++ b/src/fullscreen.js
@@ -102,7 +102,7 @@
     } else if ( document.msExitFullscreen ) {
         fullScreenApi.supportsFullScreen = true;
         fullScreenApi.isFullScreen = function() {
-            return document.msFullscreenElement !== undefined;
+            return document.msFullscreenElement !== null;
         };
         fullScreenApi.requestFullScreen = function( element ) {
             return element.msRequestFullscreen();