avoid KeyError in handle_disconnect (fixes #4304)

zauberzeug · Feb 11, 2025 · 8352638 · 8352638
1 parent 6f6ba0f
commit 8352638
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/nicegui/client.py b/nicegui/client.py
@@ -257,6 +257,8 @@ def handle_disconnect(self, socket_id: str) -> None:
         In contrast to connect handlers, disconnect handlers are not called during a reconnect.
         This behavior should be fixed in version 3.0.
         """
+        if socket_id not in self._socket_to_document_id:
+            return
         document_id = self._socket_to_document_id.pop(socket_id)
         self._cancel_delete_task(document_id)
         self._num_connections[document_id] -= 1