From a335b09d4048d84d182fe94fd50cb9651ebbb8dd Mon Sep 17 00:00:00 2001
From: Vladimir Kharlampidi <nolimits4web@gmail.com>
Date: Mon, 6 Feb 2023 11:18:00 +0300
Subject: [PATCH] feat(history): allow empty string `key`

fixes #6338
---
 src/modules/history/history.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/modules/history/history.js b/src/modules/history/history.js
index 9de61ddd8..aa292b892 100644
--- a/src/modules/history/history.js
+++ b/src/modules/history/history.js
@@ -56,9 +56,9 @@ export default function History({ swiper, extendParams, on }) {
     if (swiper.params.history.root.length > 0) {
       let root = swiper.params.history.root;
       if (root[root.length - 1] === '/') root = root.slice(0, root.length - 1);
-      value = `${root}/${key}/${value}`;
+      value = `${root}/${key ? `${key}/` : ''}${value}`;
     } else if (!location.pathname.includes(key)) {
-      value = `${key}/${value}`;
+      value = `${key ? `${key}/` : ''}${value}`;
     }
     if (swiper.params.history.keepQuery) {
       value += location.search;