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-rw-r--r--ext/fg/js/document.js3
1 files changed, 3 insertions, 0 deletions
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;