From 469fce06403dcf2815f6af73f1f4254b9c290677 Mon Sep 17 00:00:00 2001
From: Alexey Pyltsyn <lex61rus@gmail.com>
Date: Thu, 17 Feb 2022 01:43:26 +0300
Subject: [PATCH] fix(theme-common): do not run useLocationChange when hot
 reloading

---
 .../docusaurus-theme-common/src/utils/useLocationChange.ts    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/docusaurus-theme-common/src/utils/useLocationChange.ts b/packages/docusaurus-theme-common/src/utils/useLocationChange.ts
index 89cc27be455e..1aeaf69f0bd7 100644
--- a/packages/docusaurus-theme-common/src/utils/useLocationChange.ts
+++ b/packages/docusaurus-theme-common/src/utils/useLocationChange.ts
@@ -25,6 +25,10 @@ export function useLocationChange(onLocationChange: OnLocationChange): void {
   const onLocationChangeDynamic = useDynamicCallback(onLocationChange);
 
   useEffect(() => {
+    if (!previousLocation) {
+      return;
+    }
+
     if (location !== previousLocation) {
       onLocationChangeDynamic({
         location,