From 1d989777a71dfeefad03c820e740b91068f8ff04 Mon Sep 17 00:00:00 2001
From: maxkadushkin <maxim.kadushkin@onlyoffice.com>
Date: Fri, 23 Apr 2021 00:25:31 +0300
Subject: [PATCH] [themes] fix bug 49875

---
 apps/common/main/lib/controller/Themes.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/common/main/lib/controller/Themes.js b/apps/common/main/lib/controller/Themes.js
index 76376420a..eb08f5e3a 100644
--- a/apps/common/main/lib/controller/Themes.js
+++ b/apps/common/main/lib/controller/Themes.js
@@ -250,7 +250,7 @@ define([
 
             setTheme: function (id) {
                 if ( !!themes_map[id] ) {
-                    var classname = document.documentElement.className.replace(/theme-\w+\s?/, '');
+                    var classname = document.body.className.replace(/theme-\w+\s?/, '');
                     document.body.className = classname;
 
                     $('body').addClass(id);