From a5ff8aff8041916886478c7719551349c1decf46 Mon Sep 17 00:00:00 2001
From: David Walsh <davidwalsh83@gmail.com>
Date: Mon, 12 Oct 2020 18:20:00 -0500
Subject: [PATCH] Prevent undefined class from being added to Tabs (#9563)

---
 ui/app/components/ui/tabs/tab/tab.component.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ui/app/components/ui/tabs/tab/tab.component.js b/ui/app/components/ui/tabs/tab/tab.component.js
index de65c70e3..55f1533b6 100644
--- a/ui/app/components/ui/tabs/tab/tab.component.js
+++ b/ui/app/components/ui/tabs/tab/tab.component.js
@@ -20,7 +20,7 @@ const Tab = (props) => {
         className,
         {
           'tab--active': isActive,
-          [activeClassName]: isActive,
+          [activeClassName]: activeClassName && isActive,
         },
       )}
       data-testid={dataTestId}