From 696bcff6bfe5250bae06d3c252f46dbe6ac65624 Mon Sep 17 00:00:00 2001
From: Sorin Davidoi <sorin.davidoi@gmail.com>
Date: Tue, 25 Jul 2017 02:13:05 +0200
Subject: [PATCH] fix(status_list): Guard against missing ref (#4353)

---
 .../mastodon/components/status_list.js        | 22 ++++++++++---------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/app/javascript/mastodon/components/status_list.js b/app/javascript/mastodon/components/status_list.js
index 98f0de0a8..dc6f956bf 100644
--- a/app/javascript/mastodon/components/status_list.js
+++ b/app/javascript/mastodon/components/status_list.js
@@ -31,16 +31,18 @@ export default class StatusList extends ImmutablePureComponent {
   intersectionObserverWrapper = new IntersectionObserverWrapper();
 
   handleScroll = debounce(() => {
-    const { scrollTop, scrollHeight, clientHeight } = this.node;
-    const offset = scrollHeight - scrollTop - clientHeight;
-    this._oldScrollPosition = scrollHeight - scrollTop;
-
-    if (250 > offset && this.props.onScrollToBottom && !this.props.isLoading) {
-      this.props.onScrollToBottom();
-    } else if (scrollTop < 100 && this.props.onScrollToTop) {
-      this.props.onScrollToTop();
-    } else if (this.props.onScroll) {
-      this.props.onScroll();
+    if (this.node) {
+      const { scrollTop, scrollHeight, clientHeight } = this.node;
+      const offset = scrollHeight - scrollTop - clientHeight;
+      this._oldScrollPosition = scrollHeight - scrollTop;
+
+      if (250 > offset && this.props.onScrollToBottom && !this.props.isLoading) {
+        this.props.onScrollToBottom();
+      } else if (scrollTop < 100 && this.props.onScrollToTop) {
+        this.props.onScrollToTop();
+      } else if (this.props.onScroll) {
+        this.props.onScroll();
+      }
     }
   }, 200, {
     trailing: true,