connect_error not "emitted" on socket object as specified in docs

[fliespl]

You want to:

• report a bug

Current behaviour

"connect_error" event is not emitted on socket object (on connection failure) as suggested by documentation:
https://ss.codeone.pl/ss-2020-12-22_21-14-08-1608668048.png

Steps to reproduce (if the current behaviour is a bug)

https://github.com/fliespl/socket.io-fiddle

Only start client - server must be not running (since it's connection error ;) ). As you can see in logs - manager class "error" is emitted, but "connect_error" on socket class is not.

socket.on('connect_error', () => {
  console.log('connect_error -> not working');
});

socket.io.on('error', () => {
  console.log('io error -> working');
});

Expected behaviour

"connect_error" event should be emitted on socket object as mentioned in documentation.

Setup

• OS: Windows / Linux
• browser: Chrome / Cli
• socket.io version: 3.0.4

[darrachequesne]

You are absolutely right, it should be fixed by socketio/socket.io-client@53c7374 (included in socket.io-client@3.0.5).

Thanks for raising the issue.