Setting ackTimeOut on io() causes all emits to repeat themselves at the time interval specified by ackTimeOut.

[akintranslator]

Since I don't know if this behavior is default normal behavior, I did not start a bug report.
aScoket = await io('/', { retries: 15, ackTimeout: 10000, // <- If you set this. all emits from this socket repeats regularly. reconnectionAttempts: 10, withCredentials: true, extraHeaders: { Authorization: `Bearer ${jwttoken}` } })
ackTimeout: 10000, <- If you set this. all emits from this socket repeats regularly.
Is this normal behavior?
This causes a lot of pain for the developer.
I could not figure out what's happening.
If this is not a bug, then a warning must be placed next to this option.
Thanks in advance!

[darrachequesne]

Hi!

When using the retries option, every event must be acknowledged by the server, even if it's a basic socket.emit("my event"):

io.on("connection", (socket) => {
  socket.on("my event", (cb) => {
    cb();
  });
});

[akintranslator]

I was suspicious of it.
This caused me lots of pain, since I did not know what causes this behavior.
The message was kept emitted every ten second(ish) time and that's how penny dropped.
Maybe someone who makes the same mistake finds this discussion and avoid doing the mistake I made.