Handle closing connection by client about http-kit HOT 2 CLOSED

@vganshin Hi Vladislav,

I believe, that it is possible to detect closed TCP connection.

That is correct, but unfortunately browsers don't typically close TCP connections when refreshing a page (or following links, etc.). The underlying TCP connection is usually reused in these cases.

If the browser does explicitly close the connection (for example if the page includes "Cache-Control: no-store" or "Pragma: no-cache", etc.) then the http-kit :on-close event handler will fire as expected.

Otherwise you'll need to implement your own logic for detecting these kinds of discarded connections.

That's quite a large topic, but you can see Sente's implementation if you're looking for some possible ideas - here, for example.

I hope that helps?

from http-kit.

I got you. I knew (and successfully forgot), that browsers keep TCP connections alive. But I didn't thought that it reflects on server side in such a way.

Cache-Control, Pragma and even Connection: close headers didn't help. Anyway, async format it's not an issue anymore as it's needed in development. I just wanted to cleanup resources.

Thank you.

from http-kit.