diff --git a/packages/tauri-app/src-tauri/capabilities/main-window.json b/packages/tauri-app/src-tauri/capabilities/main-window.json
index 61d6e346..14cb2d7f 100644
--- a/packages/tauri-app/src-tauri/capabilities/main-window.json
+++ b/packages/tauri-app/src-tauri/capabilities/main-window.json
@@ -3,7 +3,7 @@
   "identifier": "main-window-native-dialogs",
   "description": "Grant the main window access to required core features and native dialog commands.",
   "remote": {
-    "urls": ["http://127.0.0.1:*", "http://localhost:*"]
+    "urls": ["http://127.0.0.1:*", "http://localhost:*", "http://tauri.localhost/*", "https://tauri.localhost/*"]
   },
   "windows": ["main"],
   "permissions": [
diff --git a/packages/tauri-app/src-tauri/gen/schemas/capabilities.json b/packages/tauri-app/src-tauri/gen/schemas/capabilities.json
index c98bf3f4..1e38e0c9 100644
--- a/packages/tauri-app/src-tauri/gen/schemas/capabilities.json
+++ b/packages/tauri-app/src-tauri/gen/schemas/capabilities.json
@@ -1 +1 @@
-{"main-window-native-dialogs":{"identifier":"main-window-native-dialogs","description":"Grant the main window access to required core features and native dialog commands.","remote":{"urls":["http://127.0.0.1:*","http://localhost:*"]},"local":true,"windows":["main"],"permissions":["core:default","core:menu:default","dialog:allow-open","opener:allow-default-urls","core:webview:allow-set-webview-zoom"]}}
\ No newline at end of file
+{"main-window-native-dialogs":{"identifier":"main-window-native-dialogs","description":"Grant the main window access to required core features and native dialog commands.","remote":{"urls":["http://127.0.0.1:*","http://localhost:*","http://tauri.localhost/*","https://tauri.localhost/*"]},"local":true,"windows":["main"],"permissions":["core:default","core:menu:default","dialog:allow-open","opener:allow-default-urls","core:webview:allow-set-webview-zoom"]}}
\ No newline at end of file
diff --git a/packages/tauri-app/src-tauri/src/main.rs b/packages/tauri-app/src-tauri/src/main.rs
index 81645233..1748a07a 100644
--- a/packages/tauri-app/src-tauri/src/main.rs
+++ b/packages/tauri-app/src-tauri/src/main.rs
@@ -39,7 +39,10 @@ fn is_dev_mode() -> bool {
 fn should_allow_internal(url: &Url) -> bool {
     match url.scheme() {
         "tauri" | "asset" | "file" => true,
-        "http" | "https" => matches!(url.host_str(), Some("127.0.0.1" | "localhost")),
+        // On Windows/WebView2, Tauri serves the app assets from `tauri.localhost`.
+        // This must be treated as an internal origin or the navigation guard will
+        // redirect it to the system browser and the app will appear blank.
+        "http" | "https" => matches!(url.host_str(), Some("127.0.0.1" | "localhost" | "tauri.localhost")),
         _ => false,
     }
 }