From 3b02566e16d33956604815e4bd5190f8f8144253 Mon Sep 17 00:00:00 2001
From: Tusooa Zhu <tusooa@kazv.moe>
Date: Sat, 9 Apr 2022 23:49:22 -0400
Subject: [PATCH] Fix tab switcher not working when some tabs hidden

---
 src/components/tab_switcher/tab_switcher.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/tab_switcher/tab_switcher.jsx b/src/components/tab_switcher/tab_switcher.jsx
index f5a1e60313..c8d390bc06 100644
--- a/src/components/tab_switcher/tab_switcher.jsx
+++ b/src/components/tab_switcher/tab_switcher.jsx
@@ -50,7 +50,7 @@ export default {
     activeIndex () {
       // In case of controlled component
       if (this.activeTab) {
-        return this.slots().findIndex(slot => this.activeTab === slot.props.key)
+        return this.slots().findIndex(slot => slot && slot.props && this.activeTab === slot.props.key)
       } else {
         return this.active
       }