From 9444d57e5db7efeacffbb3d9490e7fe68c90d968 Mon Sep 17 00:00:00 2001
From: 6543 <6543@obermui.de>
Date: Tue, 27 Aug 2019 18:20:22 +0200
Subject: [PATCH] bugfix: if search has no other parameters url building ailed

---
 sortt.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sortt.js b/sortt.js
index 342d5d0..f70b310 100644
--- a/sortt.js
+++ b/sortt.js
@@ -27,7 +27,7 @@ window.sortt=function(normsort,revsort,isdefault){
     if ( isdefault ) url_sort = normsort;
   } else {
     url_sort=window.location.search.substr(window.location.search.indexOf("sort=")+5);
-    url_sort=url_sort.substr(0,url_sort.indexOf("&"));
+    if (url_sort.indexOf("&") >= 0) url_sort=url_sort.substr(0,url_sort.indexOf("&"));
   }
 
   // generate new URL