SSE Hangs After Disconnect

[cameronsjo]

When a client connects to an MCP server using SSE transport and disconnects before the server sends any events:

1. Server sends http.response.start (HTTP 200 + headers)
2. Client disconnects before any SSE events are generated
3. Server never sends http.response.body message

Location

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I'm limited with how much additional information I can provide. I'm working with my enterprise Open Source team to figure out the proper way to navigate this.

[maxisbey]

Could you please provide a minimal reproducible example code snippet we can run locally to see the issue?