more robustness in dealing with bad connections

miguelgrinberg · May 31, 2016 · 5a1c707 · 5a1c707
1 parent 82ffcfb
commit 5a1c707
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/flask_socketio/__init__.py b/flask_socketio/__init__.py
@@ -198,7 +198,7 @@ def _handler(sid, *args):
                             raise
                         type, value, traceback = sys.exc_info()
                         return err_handler(value)
-                    if flask.session.modified:
+                    if flask.session.modified and sid in self.server.environ:
                         self.server.environ[sid]['saved_session'] = {}
                         self._copy_session(
                             flask.session,