From 2a5da8c9613b0ef6659edc60831b4fe8e84f3fc8 Mon Sep 17 00:00:00 2001
From: Matt Panaro <matt.panaro@gmail.com>
Date: Tue, 31 Dec 2019 15:39:25 -0500
Subject: [PATCH] refactor IntersectionObserver to observe viewport in
 single-column mode (#12735)

---
 app/javascript/mastodon/components/scrollable_list.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/app/javascript/mastodon/components/scrollable_list.js b/app/javascript/mastodon/components/scrollable_list.js
index 6338ccd5c..e4adabb36 100644
--- a/app/javascript/mastodon/components/scrollable_list.js
+++ b/app/javascript/mastodon/components/scrollable_list.js
@@ -210,10 +210,13 @@ export default class ScrollableList extends PureComponent {
   }
 
   attachIntersectionObserver () {
-    this.intersectionObserverWrapper.connect({
+    let nodeOptions = {
       root: this.node,
       rootMargin: '300% 0px',
-    });
+    };
+
+    this.intersectionObserverWrapper
+      .connect(this.props.bindToDocument ? {} : nodeOptions);
   }
 
   detachIntersectionObserver () {