From 8cad7d61eb46c261b09e2c064d5792b7198057ca Mon Sep 17 00:00:00 2001
From: tophf <tophf@gmx.com>
Date: Tue, 17 Apr 2018 22:34:18 +0300
Subject: [PATCH] scrollElementIntoView: skip if orphaned

---
 js/dom.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/js/dom.js b/js/dom.js
index 15e935b7..efdcbb24 100644
--- a/js/dom.js
+++ b/js/dom.js
@@ -96,6 +96,7 @@ function onDOMready() {
 
 function scrollElementIntoView(element, {invalidMarginRatio = 0} = {}) {
   // align to the top/bottom of the visible area if wasn't visible
+  if (!element.parentNode) return;
   const {top, height} = element.getBoundingClientRect();
   const {top: parentTop, bottom: parentBottom} = element.parentNode.getBoundingClientRect();
   const windowHeight = window.innerHeight;