From 49a16f9071ed3e4cf95dcc99a03832dc41c0fc90 Mon Sep 17 00:00:00 2001
From: Vyrtsev Mikhail <reeywhaar@gmail.com>
Date: Mon, 8 Jul 2019 00:25:31 +0300
Subject: [PATCH] clear interval on component unmount

---
 frontend/app/components/countdown/index.tsx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/frontend/app/components/countdown/index.tsx b/frontend/app/components/countdown/index.tsx
index be17bda9..518f385f 100644
--- a/frontend/app/components/countdown/index.tsx
+++ b/frontend/app/components/countdown/index.tsx
@@ -32,6 +32,9 @@ export default class Countdown extends Component<Props, State> {
     });
     this.start();
   }
+  componentWillUnmount() {
+    window.clearInterval(this.intervalID);
+  }
   shouldComponentUpdate() {
     return false;
   }