diff --git a/ext/ui-build/data/root.html b/ext/ui-build/data/root.html
index 32549ae5ce..9a4f700fe9 100644
--- a/ext/ui-build/data/root.html
+++ b/ext/ui-build/data/root.html
@@ -105,7 +105,8 @@
 		frameEscapeFunctions[frameName] = () => {
 			setTimeout(() => {
 				if (document.activeElement == document.body) {
-					frame.contentWindow.focus();
+					// Added questions marks to avoid throwing error while something is null
+					frame?.contentWindow?.focus();
 				}
 			}, 32);
 		}