From 47387ffe3367cea2f58501071bf8e1db11e42060 Mon Sep 17 00:00:00 2001
From: Florrie <towerofnix@gmail.com>
Date: Tue, 18 Dec 2018 00:02:04 -0400
Subject: [PATCH] Fix "TouchEvent is not defined" error

---
 src/containers/stage.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/containers/stage.jsx b/src/containers/stage.jsx
index c5c36c2e6..ad0a9cbf0 100644
--- a/src/containers/stage.jsx
+++ b/src/containers/stage.jsx
@@ -236,7 +236,7 @@ class Stage extends React.Component {
         this.updateRect();
         const {x, y} = getEventXY(e);
         const mousePosition = [x - this.rect.left, y - this.rect.top];
-        if (e.button === 0 || e instanceof TouchEvent) {
+        if (e.button === 0 || (window.TouchEvent && e instanceof TouchEvent)) {
             this.setState({
                 mouseDown: true,
                 mouseDownPosition: mousePosition,
-- 
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