From 10d2ec1b7eb6b3f83efe8a65d4a68f9b4e046e1c Mon Sep 17 00:00:00 2001
From: Jerel Miller <jerelmiller@gmail.com>
Date: Wed, 24 Jun 2020 12:21:54 -0700
Subject: [PATCH] fix: Handle navigation with no search term

---
 src/components/Navigation.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/components/Navigation.js b/src/components/Navigation.js
index bf5f31a12..0c1c63fec 100644
--- a/src/components/Navigation.js
+++ b/src/components/Navigation.js
@@ -26,9 +26,14 @@ const filterPageNames = (pages, searchTerm, parent = []) => {
 };
 
 const Navigation = ({ className, searchTerm }) => {
-  const searchTermSanitized = searchTerm.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
-  const filteredPageNames =
-    searchTerm !== '' ? filterPageNames(pages, searchTermSanitized) : undefined;
+  const searchTermSanitized = searchTerm?.replace(
+    /[.*+?^${}()|[\]\\]/g,
+    '\\$&'
+  );
+
+  const filteredPageNames = searchTerm
+    ? filterPageNames(pages, searchTermSanitized)
+    : undefined;
 
   return (
     <nav