How to speed up disconnect in socket.io?

Question

Socket.io

I am writing a chat in NodeJS using socket.io. There was such a problem: if you turn off the Internet, then disconnect works somewhere in a minute, and if you close the tab or refresh, it works instantly. How can I speed up this event even when the Internet is turned off? There was an attempt to periodically send an event to the server to check the connection and set a timer, if the event does not repeat, the timer will not be canceled and the event will fire as if disconnected, but this is very strange and does not work.

Answer 1

https://developer.mozilla.org/en/docs/Online_and_o...
// EDIT
And why is everyone so shy about reading docs?)
DOCS .
pingTimeout (Number): how many ms without a pong packet to consider the connection closed (60000)