HTTP 499 and "All fibers interrupted without errors" on simple Bun websocket RPC #6037
Description
What version of Effect is running?
3.19.15, Bun 1.3.8
What steps can reproduce the bug?
Set up a very simple Bun based RPC server and client, using WebSockets as the protocol.
Follow the very minimal reproduction here: https://github.com/jan-wilhelm/effect-bun-rpc-fiber-interrupted-reproduction
What is the expected behavior?
It should just work without any warning / error logs
What do you see instead?
I see these logs on the server when making a super simple RPC request:
% bun run src/server.ts
[15:33:37.934] INFO (#3): Listening on http://localhost:3000
[15:33:39.316] INFO (#22) http.span.1=4ms: Received Bar RPC call
[15:33:39.323] INFO (#18) http.span.1=11ms:
All fibers interrupted without errors.
http.status: 499
http.method: GET
http.url: /rpc
Additional information
Note that this log line does not appear when using the NodeHttpServer, NodeRuntime, and running with node