From bbdaa6a14b5b0e9dcce59396f53a2dd51883727d Mon Sep 17 00:00:00 2001
From: Arun Philip <dacodedbeat@gmail.com>
Date: Wed, 28 Feb 2024 10:55:52 -0500
Subject: [PATCH] addListener and removeListener are only invoked on defined
 (and valid) values (#11685)

---
 src/platform/platform.dom.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/platform/platform.dom.js b/src/platform/platform.dom.js
index 301b2c46c47..6c4b96d7546 100644
--- a/src/platform/platform.dom.js
+++ b/src/platform/platform.dom.js
@@ -95,11 +95,15 @@ function initCanvas(canvas, aspectRatio) {
 const eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;
 
 function addListener(node, type, listener) {
-  node.addEventListener(type, listener, eventListenerOptions);
+  if (node) {
+    node.addEventListener(type, listener, eventListenerOptions);
+  }
 }
 
 function removeListener(chart, type, listener) {
-  chart.canvas.removeEventListener(type, listener, eventListenerOptions);
+  if (chart && chart.canvas) {
+    chart.canvas.removeEventListener(type, listener, eventListenerOptions);
+  }
 }
 
 function fromNativeEvent(event, chart) {