From 7585d8619de45f72dc0c980b6282da1e6be945a8 Mon Sep 17 00:00:00 2001
From: Dominic Gannaway <dg@domgan.com>
Date: Fri, 15 Mar 2019 22:11:51 +0000
Subject: [PATCH] Change passive checker to use defineProperty

---
 packages/react-dom/src/events/checkPassiveEvents.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/packages/react-dom/src/events/checkPassiveEvents.js b/packages/react-dom/src/events/checkPassiveEvents.js
index ad175b3a05b..640caab67c2 100644
--- a/packages/react-dom/src/events/checkPassiveEvents.js
+++ b/packages/react-dom/src/events/checkPassiveEvents.js
@@ -16,11 +16,13 @@ export let passiveBrowserEventsSupported = false;
 // https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
 if (enableEventAPI && canUseDOM) {
   try {
-    const options = {
-      get passive() {
+    const options = {};
+    // $FlowFixMe: Ignore Flow complaining about needing a value
+    Object.defineProperty(options, 'passive', {
+      get: function() {
         passiveBrowserEventsSupported = true;
       },
-    };
+    });
     window.addEventListener('test', options, options);
     window.removeEventListener('test', options, options);
   } catch (e) {