From ce44c8e5296c2c44b646c96c7d86be22f2f56cb7 Mon Sep 17 00:00:00 2001
From: Hongbo Wu <hongbo@omnivore.app>
Date: Wed, 30 Nov 2022 11:59:42 +0800
Subject: [PATCH] Default parent classes being an empty array

---
 packages/readabilityjs/Readability.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/readabilityjs/Readability.js b/packages/readabilityjs/Readability.js
index 409604e9f..27a159863 100644
--- a/packages/readabilityjs/Readability.js
+++ b/packages/readabilityjs/Readability.js
@@ -2785,7 +2785,7 @@ Readability.prototype = {
           return false;
         }
 
-        var parentClasses = node.parentNode.classList;
+        var parentClasses = node.parentNode?.classList || [];
         var haveToRemove =
           !this._isOmnivoreNode(node) && (
           (img > 1 && p / img < 0.5 && !this._hasAncestorTag(node, "figure")) ||