Update app.py

app.py

@@ -4,6 +4,7 @@ UI_VARIANT = os.getenv("MEGUMIN_UI", "default").strip().lower()
 
 if UI_VARIANT == "messenger":
     from app_gradio_messenger import CUSTOM_CSS
+    from app_gradio_messenger import MESSENGER_ALLOWED_PATHS
     from app_gradio_messenger import demo
 else:
     from app_gradio import CUSTOM_CSS
@@ -11,4 +12,7 @@ else:
 
 
 if __name__ == "__main__":
-    demo.launch(css=CUSTOM_CSS, ssr_mode=False)
+    launch_kwargs = {"css": CUSTOM_CSS, "ssr_mode": False}
+    if UI_VARIANT == "messenger":
+        launch_kwargs["allowed_paths"] = MESSENGER_ALLOWED_PATHS
+    demo.launch(**launch_kwargs)