socketio / socketio/socket.io

WebSocket is closed before the connection is established.

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#5,371 1 comment 0 reactions 0 assignees View on GitHub

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needs investigation
Dominant language
TypeScript
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Describe the bug
after a long time of connection websocket does not connect and throws "WebSocket is closed before the connection is established." until you restart the server.

To Reproduce
Keep monitoring socket connection for a long time.

Socket.IO client version: @nestjs/platform-socket.io": "^10.4.6"

Expected behavior
Should not happen.

Platform:

  • Device: Ubuntu chrome browser
  • OS: Ubuntu

Contributor guide

Open the contributing guide

First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No repository file, test, or entry point is named. Start by reproducing the long-running connection failure with the reported Socket.IO client setup on Ubuntu and inspect the server and client logs around the failed WebSocket upgrade. Done means identifying a reproducible cause and preventing the connection from closing before establishment without requiring a server restart.

Written by the indexing model from the issue text.

Assessment

Tech stack
nodejs, typescript
Domain
backend, networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
42/100

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