sse-pass-http-req

Author: barnuri

Diff for: src/mcp/server/lowlevel/server.py

@@ -490,7 +490,7 @@ async def run(
             async with anyio.create_task_group() as tg:
                 async for message in session.incoming_messages:
                     logger.debug(f"Received message: {message}")
-                    if hasattr(message, "request_meta"):
+                    if hasattr(message, "request_meta") and message.request_meta:
                         message.request_meta.extra_metadata = extra_metadata  # type: ignore
                     tg.start_soon(
                         self._handle_message,