ENG-6695: Do not allow call_script EventSpec to accept callback after being called (#5571)

masenf · web-flow · commit c82a9422b5dd · 2025-07-14T14:30:27.000-07:00
diff --git a/reflex/event.py b/reflex/event.py
@@ -1269,7 +1269,7 @@ def call_script(
     Returns:
         EventSpec: An event that will execute the client side javascript.
     """
-    callback_kwargs = {}
+    callback_kwargs = {"callback": None}
     if callback is not None:
         callback_kwargs = {
             "callback": str(
