From 09ca440a5e218dbd48949fc213e9c85d7aaa312f Mon Sep 17 00:00:00 2001
From: Christopher Goh <chrisgzf@gmail.com>
Date: Mon, 13 Jul 2020 11:47:42 +0800
Subject: [PATCH] Fix polyfills

---
 website/src/entry/main.tsx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/website/src/entry/main.tsx b/website/src/entry/main.tsx
index 4e38122c23..eb146b829c 100644
--- a/website/src/entry/main.tsx
+++ b/website/src/entry/main.tsx
@@ -1,5 +1,10 @@
 // Import Sentry earliest to capture exceptions
 import 'bootstrapping/sentry';
+// core-js has issues with Promise feature detection on Edge, and hence
+// polyfills Promise incorrectly. Importing this polyfill directly resolves that.
+// This is necessary as PersistGate used in ./App uses `Promise.prototype.finally`.
+// See: https://github.com/zloirock/core-js/issues/579#issuecomment-504325213
+import 'core-js/es/promise/finally';
 
 import React from 'react';
 import ReactDOM from 'react-dom';