From 247da06882628b556230a11236457033dd23ac4f Mon Sep 17 00:00:00 2001
From: Carter David Henning <carterdavidhenning@gmail.com>
Date: Fri, 30 Jul 2021 20:40:47 -0400
Subject: [PATCH 1/2] Fix incorrect fullscreen check

---
 plugins.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins.js b/plugins.js
index 69b2ca3..51a84f1 100644
--- a/plugins.js
+++ b/plugins.js
@@ -4695,7 +4695,7 @@ GA.plugins = function(ga) {
   //to `fullscreen.scale`. If not, and the canvas hasn't already
   //been scaled, the scale reverts back to 1.   
   ga.scaleFullscreen = function() {
-    if(document.fullscreenEnabled) {
+    if(document.fullscreenElement != null) {
       ga.scale = ga.fullscreenScale;
       ga.pointer.scale = ga.fullscreenScale;
     } else {

From a997aa64ead6931d8eb39ab7e929fa44de17d83c Mon Sep 17 00:00:00 2001
From: Carter David Henning <carterdavidhenning@gmail.com>
Date: Fri, 30 Jul 2021 21:15:51 -0400
Subject: [PATCH 2/2] Fix fullscreen display

Fullscreen games now work properly with modern browsers.
---
 plugins.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugins.js b/plugins.js
index 51a84f1..8912d70 100644
--- a/plugins.js
+++ b/plugins.js
@@ -4556,7 +4556,7 @@ GA.plugins = function(ga) {
   //`requestFullscreen` is used by `enableFullscreen` to launch
   //fullscreen mode.
   ga.requestFullScreen = function() {
-    if (!document.fullscreenEnabled) {
+    if (document.fullscreenEnabled && document.fullscreenElement === null) {
       ga.canvas.requestFullscreen();
     }
   };
@@ -4564,7 +4564,7 @@ GA.plugins = function(ga) {
   //`exitFullscreen` is used by `enableFullscreen` to exit
   //fullscreen mode.
   ga.exitFullScreen = function() {
-    if (document.fullscreenEnabled) {
+    if (document.fullscreenEnabled && document.fullscreenElement !== null) {
       document.exitFullscreen();
     }
   };