diff --git a/apps/flutter_parent/lib/utils/common_widgets/web_view/web_content_interactor.dart b/apps/flutter_parent/lib/utils/common_widgets/web_view/web_content_interactor.dart
index 93aaec8122..58c39f237c 100644
--- a/apps/flutter_parent/lib/utils/common_widgets/web_view/web_content_interactor.dart
+++ b/apps/flutter_parent/lib/utils/common_widgets/web_view/web_content_interactor.dart
@@ -28,7 +28,8 @@ class WebContentInteractor {
   }
 
   Future<String> getAuthUrl(String targetUrl) async {
-    if (targetUrl.contains(ApiPrefs.getDomain()!)) {
+    final domain = ApiPrefs.getDomain();
+    if (domain != null && targetUrl.contains(domain)) {
       return _authUrl(targetUrl);
     } else {
       return targetUrl;