From c0ec1ce0a81ba3a5b631c33ee0ffee495e9ef818 Mon Sep 17 00:00:00 2001
From: Gauss Zhou <46297500+gausszhou@users.noreply.github.com>
Date: Sun, 14 Nov 2021 00:19:12 +0800
Subject: [PATCH] fix: issues #272

We should avoid using undeclared variables
---
 src/litegraph.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/litegraph.js b/src/litegraph.js
index 8591ed114..7cd538a7f 100644
--- a/src/litegraph.js
+++ b/src/litegraph.js
@@ -7477,7 +7477,9 @@ LGraphNode.prototype.executeAction = function(action)
      * @method adjustMouseEvent
      **/
     LGraphCanvas.prototype.adjustMouseEvent = function(e) {
-
+	var clientX_rel = 0;
+        var clientY_rel = 0;
+	    
     	if (this.canvas) {
             var b = this.canvas.getBoundingClientRect();
             clientX_rel = e.clientX - b.left;