From 8466a3e97b857c0671ba4481eac2b4ac68eb5c72 Mon Sep 17 00:00:00 2001
From: Tyler Lindberg <tlindberg@ucla.edu>
Date: Wed, 25 Oct 2017 23:41:32 -0700
Subject: [PATCH] Listen for Command-Z instead of Ctrl-Z on Mac

---
 editor/index.html | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/editor/index.html b/editor/index.html
index 9fc06fe8c4..a8d6b1b4d8 100644
--- a/editor/index.html
+++ b/editor/index.html
@@ -311,11 +311,14 @@
 
 					case 90: // Register Ctrl-Z for Undo, Ctrl-Shift-Z for Redo
 
-						if ( event.ctrlKey && event.shiftKey ) {
+						var isMac = navigator.platform.toUpperCase().indexOf( 'MAC' ) >= 0;
+						var modifierKey = isMac ? event.metaKey : event.ctrlKey;
+
+						if ( modifierKey && event.shiftKey ) {
 
 							editor.redo();
 
-						} else if ( event.ctrlKey ) {
+						} else if ( modifierKey ) {
 
 							editor.undo();
 
-- 
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