From 02927f9004132114c975b34491ceb28fb764f2f8 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Wed, 18 Sep 2019 22:11:18 -0400
Subject: [PATCH] Handle null return value of document.caretPositionFromPoint

---
 ext/fg/js/document.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ext/fg/js/document.js b/ext/fg/js/document.js
index 9afc44f0..94a68e6c 100644
--- a/ext/fg/js/document.js
+++ b/ext/fg/js/document.js
@@ -267,6 +267,9 @@ const caretRangeFromPoint = (() => {
         // Firefox
         return (x, y) => {
             const position = document.caretPositionFromPoint(x, y);
+            if (position === null) {
+                return null;
+            }
             const node = position.offsetNode;
             if (node === null) {
                 return null;