SSE connections wont close ( golang )

Is there an existing issue for this bug?

• I have searched the existing open issues and found none that apply.
• If I find any issue of interest that is related or closed, I will included a link to it in this issue.

Required Troubleshooting Steps

• I have read and performed the troubleshooting steps
• I have tried both values of the remote.SSH.useLocalServer setting
• My issue was not covered in the Tips and Tricks linked from the Troubleshooting Wiki.
• I will include a complete copy of my Remote - SSH logs by running Remote-SSH: Show Log in the command palette or from View > Output in the menu bar

[Optional] Diagnose with Copilot

I asked @remote-ssh but it did not help

In step 2 of the troubleshooting wiki, what was the result of running the generated SSH command verbatim outside of VS Code?

I COULD successfully SSH to the remote machine with the generated SSH command

Remote-SSH Log

Expected Behavior

close SSE / connection on remote server via forwarded port to localhost

Actual Behavior

SSE connections keeps growing

Steps To Reproduce

connect to remote linux machine
clone repo https://github.com/blinkinglight/vscoderemotesshbug and run go program
forward port 1234
open http://localhost:1234/sse you should see stream in browser, and in vscode terminal - Sent SSE message
close browser tab
in vscode terminal you should see: Successfully closed SSE connection
and stream of "Sent SSE message" should stop

Anything else?

latest stable vscode ( not insiders ) with latest remote ssh pre-release extesion ( same problem with stable )

Clone and run the linked blinkinglight/vscoderemotesshbug repository, then reproduce the SSE request through Remote-SSH port forwarding on port 1234. Compare the browser disconnect with the Go server's expected closure message and inspect how the forwarded connection handles disconnects; done when closing the tab stops the stream and the server reports a closed SSE connection.