From 4df6983308d04473304677b1921cf1836982779f Mon Sep 17 00:00:00 2001
From: Mehmet Erim <34455572+mehmet-erim@users.noreply.github.com>
Date: Thu, 2 Sep 2021 15:08:41 +0300
Subject: [PATCH] Update visibility.directive.ts

---
 .../packages/core/src/lib/directives/visibility.directive.ts  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/npm/ng-packs/packages/core/src/lib/directives/visibility.directive.ts b/npm/ng-packs/packages/core/src/lib/directives/visibility.directive.ts
index 8e02ef5b87..9f390df14f 100644
--- a/npm/ng-packs/packages/core/src/lib/directives/visibility.directive.ts
+++ b/npm/ng-packs/packages/core/src/lib/directives/visibility.directive.ts
@@ -26,7 +26,7 @@ export class VisibilityDirective implements AfterViewInit {
         if (!mutation.target) return;
 
         const htmlNodes =
-          Array.from(mutation.target.childNodes).filter(node => node instanceof HTMLElement) || [];
+          Array.from(mutation.target.childNodes || []).filter(node => node instanceof HTMLElement) || [];
 
         if (!htmlNodes.length) {
           this.removeFromDOM();
@@ -40,7 +40,7 @@ export class VisibilityDirective implements AfterViewInit {
 
     setTimeout(() => {
       const htmlNodes =
-        Array.from(this.focusedElement.childNodes).filter(node => node instanceof HTMLElement) ||
+        Array.from(this.focusedElement.childNodes || []).filter(node => node instanceof HTMLElement) ||
         [];
 
       if (!htmlNodes.length) this.removeFromDOM();