From 9e5cf59ceaa66b534ef95d519cacb8afc4814215 Mon Sep 17 00:00:00 2001
From: Matan Borenkraout <Matanbobi@gmail.com>
Date: Wed, 8 Jul 2020 21:46:21 +0300
Subject: [PATCH] fix(flushMicroTasks): fallback to no scheduler (#739)

Co-authored-by: Kent C. Dodds <me+github@kentcdodds.com>
---
 src/flush-microtasks.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/flush-microtasks.js b/src/flush-microtasks.js
index f72060b9..3789bf80 100644
--- a/src/flush-microtasks.js
+++ b/src/flush-microtasks.js
@@ -20,9 +20,6 @@ function getIsUsingFakeTimers() {
 
 const globalObj = typeof window === 'undefined' ? global : window
 let Scheduler = globalObj.Scheduler
-const isModernScheduleCallbackSupported = satisfies(React.version, '>16.8.6', {
-  includePrerelease: true,
-})
 
 let didWarnAboutMessageChannel = false
 let enqueueTask
@@ -58,9 +55,14 @@ try {
           'if you encounter this warning.',
       )
     }
+
   }
 }
 
+const isModernScheduleCallbackSupported = Scheduler && satisfies(React.version, '>16.8.6', {
+  includePrerelease: true,
+})
+
 function scheduleCallback(cb) {
   const NormalPriority = Scheduler
     ? Scheduler.NormalPriority || Scheduler.unstable_NormalPriority