From 935e8c9c62d905b0a5c9e70ad319cf57b5d07693 Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Thu, 17 Nov 2022 21:16:56 -0800
Subject: [PATCH] Don't record history for duplicate searches

---
 script.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/script.js b/script.js
index 3f9da55..5d93392 100644
--- a/script.js
+++ b/script.js
@@ -177,7 +177,9 @@ document.querySelector('form').addEventListener('submit', async event => {
   const query = data.get('query');
 
   // showPage flow is used for direct link. Manually set history here.
-  history.pushState({}, '', `/search?q=${query}`);
+  if (location.search !== `?q=${query}`) { // Don't update history if the query hasn't changed
+    history.pushState({}, '', `/search?q=${query}`);
+  }
   showSearch(query);
 });
 
-- 
2.47.3