From 3014a75b555488ce33cdce466e83b5b08891cc16 Mon Sep 17 00:00:00 2001
From: will <will@metawork.com>
Date: Mon, 6 Sep 2021 18:38:10 +0000
Subject: [PATCH 1/5] guard document

---
 keymaster.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/keymaster.js b/keymaster.js
index 8f5b5fc..e969436 100644
--- a/keymaster.js
+++ b/keymaster.js
@@ -264,8 +264,10 @@
   };
 
   // set the handlers globally on document
-  addEvent(document, 'keydown', function(event) { dispatch(event) }); // Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
-  addEvent(document, 'keyup', clearModifier);
+  if (document) {
+    addEvent(document, 'keydown', function(event) { dispatch(event) }); // Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
+    addEvent(document, 'keyup', clearModifier);
+  }
 
   // reset modifiers to false whenever the window is (re)focused.
   addEvent(window, 'focus', resetModifiers);

From d8acc181697f6e351ca3b271f339dd2c33e938af Mon Sep 17 00:00:00 2001
From: will <will@metawork.com>
Date: Mon, 6 Sep 2021 18:41:29 +0000
Subject: [PATCH 2/5] window.document

---
 keymaster.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/keymaster.js b/keymaster.js
index e969436..7bd7c71 100644
--- a/keymaster.js
+++ b/keymaster.js
@@ -264,9 +264,9 @@
   };
 
   // set the handlers globally on document
-  if (document) {
-    addEvent(document, 'keydown', function(event) { dispatch(event) }); // Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
-    addEvent(document, 'keyup', clearModifier);
+  if (window.document) {
+    addEvent(window.document, 'keydown', function(event) { dispatch(event) }); // Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
+    addEvent(window.document, 'keyup', clearModifier);
   }
 
   // reset modifiers to false whenever the window is (re)focused.

From 0872e93d486a7bc5618ac4dad1791a211711963d Mon Sep 17 00:00:00 2001
From: will <will@metawork.com>
Date: Mon, 6 Sep 2021 18:45:33 +0000
Subject: [PATCH 3/5] check for window as well

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

diff --git a/keymaster.js b/keymaster.js
index 7bd7c71..7aa0d17 100644
--- a/keymaster.js
+++ b/keymaster.js
@@ -264,7 +264,7 @@
   };
 
   // set the handlers globally on document
-  if (window.document) {
+  if (window && window.document) {
     addEvent(window.document, 'keydown', function(event) { dispatch(event) }); // Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
     addEvent(window.document, 'keyup', clearModifier);
   }

From e0839d551d7165e9b0a9cd4677753edf8a0d6d30 Mon Sep 17 00:00:00 2001
From: will <will@metawork.com>
Date: Mon, 6 Sep 2021 18:49:51 +0000
Subject: [PATCH 4/5] check typeof

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

diff --git a/keymaster.js b/keymaster.js
index 7aa0d17..463bb43 100644
--- a/keymaster.js
+++ b/keymaster.js
@@ -264,7 +264,7 @@
   };
 
   // set the handlers globally on document
-  if (window && window.document) {
+  if (typeof window !== 'undefined' && window.document) {
     addEvent(window.document, 'keydown', function(event) { dispatch(event) }); // Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
     addEvent(window.document, 'keyup', clearModifier);
   }

From 8af9aa7ce8dd8639881f9896c178cc314a2e39fe Mon Sep 17 00:00:00 2001
From: will <will@metawork.com>
Date: Mon, 6 Sep 2021 18:51:05 +0000
Subject: [PATCH 5/5] expand check

---
 keymaster.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/keymaster.js b/keymaster.js
index 463bb43..290771a 100644
--- a/keymaster.js
+++ b/keymaster.js
@@ -267,11 +267,11 @@
   if (typeof window !== 'undefined' && window.document) {
     addEvent(window.document, 'keydown', function(event) { dispatch(event) }); // Passing _scope to a callback to ensure it remains the same by execution. Fixes #48
     addEvent(window.document, 'keyup', clearModifier);
+    
+    // reset modifiers to false whenever the window is (re)focused.
+    addEvent(window, 'focus', resetModifiers);
   }
 
-  // reset modifiers to false whenever the window is (re)focused.
-  addEvent(window, 'focus', resetModifiers);
-
   // store previously defined key
   var previousKey = global.key;