From d6576f226ffa982f2340b8774f3b136b6b5e09ac Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexander=20Sundli-H=C3=A4rdig?=
 <alexander@sundli-hardig.no>
Date: Fri, 25 May 2018 12:05:45 +0200
Subject: [PATCH] Avoid null error (#570)

Avoid the error "Cannot read property 'removeEventListener' of null"
---
 src/google_map.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/google_map.js b/src/google_map.js
index fdc96da..af16a60 100644
--- a/src/google_map.js
+++ b/src/google_map.js
@@ -396,9 +396,11 @@ export default class GoogleMap extends Component {
   componentWillUnmount() {
     this.mounted_ = false;
     const mapDom = ReactDOM.findDOMNode(this.googleMapDom_);
+    if (mapDom) {
+      mapDom.removeEventListener('mousedown', this._onMapMouseDownNative, true);
+    }
     window.removeEventListener('resize', this._onWindowResize);
     window.removeEventListener('keydown', this._onKeyDownCapture);
-    mapDom.removeEventListener('mousedown', this._onMapMouseDownNative, true);
     window.removeEventListener('mouseup', this._onChildMouseUp, false);
     if (this.props.resetBoundsOnResize) {
       detectElementResize.removeResizeListener(