From 4876684461f2734f76c241ba69a4036619d86097 Mon Sep 17 00:00:00 2001
From: Truimo <xiaomo@20mo.cn>
Date: Wed, 26 Apr 2023 00:10:33 +0800
Subject: [PATCH] fix: added check if there is no parent element

---
 tracker/index.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tracker/index.js b/tracker/index.js
index 2278a1f9..e5d59273 100644
--- a/tracker/index.js
+++ b/tracker/index.js
@@ -119,6 +119,9 @@
             return currentElement;
           }
           currentElement = currentElement.parentElement;
+          if (currentElement === null) {
+            return null;
+          }
         }
         return null;
       };