From cfb13b2d54e891562a17c87e93bb621a99e0aba4 Mon Sep 17 00:00:00 2001
From: Andreas Fuchs <info@anfuchs.de>
Date: Thu, 6 May 2021 10:47:23 +0200
Subject: [PATCH] enhancement #649

as refFilter, urlFilter is expanded checking agains url !== null.
---
 lib/filters.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/filters.js b/lib/filters.js
index 733dab94..bb8b0c38 100644
--- a/lib/filters.js
+++ b/lib/filters.js
@@ -3,7 +3,7 @@ import { removeTrailingSlash, removeWWW, getDomainName } from './url';
 
 export const urlFilter = (data, { raw }) => {
   const isValidUrl = url => {
-    return url !== '' && !url.startsWith('#');
+    return url !== '' && url !== null && !url.startsWith('#');
   };
 
   if (raw) {