From 4e8df588b9e31d22efa5da618256c392556ede05 Mon Sep 17 00:00:00 2001
From: Jason Park <parkjs814@gmail.com>
Date: Thu, 24 Jan 2019 01:10:58 -0500
Subject: [PATCH] Fix history block

---
 src/frontend/components/App/index.jsx | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/frontend/components/App/index.jsx b/src/frontend/components/App/index.jsx
index 3358ea5..eebe295 100644
--- a/src/frontend/components/App/index.jsx
+++ b/src/frontend/components/App/index.jsx
@@ -75,11 +75,14 @@ class App extends BaseComponent {
 
   toggleHistoryBlock(enable = !this.unblock) {
     if (enable) {
-      const { saved } = this.props.current;
       const warningMessage = 'Are you sure you want to discard changes?';
-      window.onbeforeunload = () => saved ? undefined : warningMessage;
+      window.onbeforeunload = () => {
+        const { saved } = this.props.current;
+        if (!saved) return warningMessage;
+      };
       this.unblock = this.props.history.block((location) => {
         if (location.pathname === this.props.location.pathname) return;
+        const { saved } = this.props.current;
         if (!saved) return warningMessage;
       });
     } else {