From 68e5dc96db8a831fd16c02882153fcfa85de4f47 Mon Sep 17 00:00:00 2001
From: Yuriy Sirotenko <yosirotenko@gmail.com>
Date: Sun, 31 Jan 2021 21:25:55 +0600
Subject: [PATCH] fix visibility bug

---
 jsx/index.jsx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/jsx/index.jsx b/jsx/index.jsx
index b460817..bde8f28 100644
--- a/jsx/index.jsx
+++ b/jsx/index.jsx
@@ -218,6 +218,8 @@ class App extends React.Component
 	componentDidMount()
 	{
 		let timer = setInterval(() => {
+			if (document.visibilityState !== 'visible') return
+
 			this.setState({time: this.state.time - 1});
 
 			if (this.state.time <= 5 && this.state.time > 0) {