diff --git a/lib/providers/generatable/webview_provider.dart b/lib/providers/generatable/webview_provider.dart
index bf86a0d9..d26a9ecd 100644
--- a/lib/providers/generatable/webview_provider.dart
+++ b/lib/providers/generatable/webview_provider.dart
@@ -266,7 +266,11 @@ class WebController extends _$WebController {
   Future<void> httpRedirect() async {
     if (!inKancolleWindow) {
       WebUri? currentUrl = await controller.getUrl();
-      if (currentUrl!.path.startsWith(Uri.parse(kGameUrl).path)) {
+      if (currentUrl == null) {
+        Toast.showError(title: "Get Url Fail");
+        return;
+      }
+      if (currentUrl.path.startsWith(Uri.parse(kGameUrl).path)) {
         // May be HTTPS or HTTP
         if (Platform.isIOS) {
           await controller.injectJavascriptFileFromAsset(