diff --git a/utils/dom.js b/utils/dom.js
index bedf98ba6c5feb..f0dbeb5c5ae8f8 100644
--- a/utils/dom.js
+++ b/utils/dom.js
@@ -251,6 +251,13 @@ function caretRangeFromPoint( doc, x, y ) {
 	}
 
 	const point = doc.caretPositionFromPoint( x, y );
+
+	// If x or y are negative, outside viewport, or there is no text entry node.
+	// https://developer.mozilla.org/en-US/docs/Web/API/Document/caretRangeFromPoint
+	if ( ! point ) {
+		return null;
+	}
+
 	const range = doc.createRange();
 
 	range.setStart( point.offsetNode, point.offset );