From 6066f491a28ee1c0b3ec77c549635cf6391db39e Mon Sep 17 00:00:00 2001
From: Nathan Hunzaker <nate.hunzaker@gmail.com>
Date: Mon, 4 Jun 2018 06:45:49 -0400
Subject: [PATCH] Fallback to event.srcElement for IE9

It looks like we accidentally removed a fallback condition for the
event target in IE9 when we dropped some support for IE8. This commit
adds the event target specific support code back to getEventTarget.js

Fixes #12506
---
 packages/react-dom/src/events/getEventTarget.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/react-dom/src/events/getEventTarget.js b/packages/react-dom/src/events/getEventTarget.js
index 76c0052c852..960ba2040a6 100644
--- a/packages/react-dom/src/events/getEventTarget.js
+++ b/packages/react-dom/src/events/getEventTarget.js
@@ -15,7 +15,9 @@ import {TEXT_NODE} from '../shared/HTMLNodeType';
  * @return {DOMEventTarget} Target node.
  */
 function getEventTarget(nativeEvent) {
-  let target = nativeEvent.target || window;
+  // Fallback to nativeEvent.srcElement for IE9
+  // https://github.com/facebook/react/issues/12506
+  let target = nativeEvent.target || nativeEvent.srcElement || window;
 
   // Normalize SVG <use> element events #4963
   if (target.correspondingUseElement) {