Adding return message to get_query_parameters function.

app.py

@@ -10,9 +10,9 @@ secret_value = "nevergonnagiveyouup"
 # Function to retrieve data from query parameters in the URL
 def get_query_params(request: gr.Request):
     if "secret" not in request.query_params:
-        return
+        return "No secret provided"
     if request.query_params["secret"] != secret_value:
-        return
+        return "Secret is incorrect"
     data = ""
     if "filename" in request.query_params:
         filename = request.query_params["filename"]