idleTimeout property does not work

[supahero1]

Linux CentOS8, 4.18.0
node 1.14.4
install uWebSockets.js 18.1.0
run the following code by node filename.js:

"use strict";

const uWS = require('uWebSockets.js');
const backpressure = 0;
let w;

uWS.App({}).ws('/*', {
  compression: uWS.SHARED_COMPRESSOR,
  maxPayloadLength: 0, // doesn't really matter, tested with 0 and 1024 * 1024 * 16
  idleTimeout: 3200,
  open: (ws) => {
    console.log("got new websocket");
  },
  message: (a, b, c) {},
  drain: (a) {},
  close: (ws, code, message) => {
    console.log('WebSocket closed');
    console.log(code, message);
  }
}).any("/*", function(res, req) {
  res.end("Nothing to see here.");
}).listen(8080, (token) => {
  if (token) {
    console.log('Listening to port ' + 8080);
  } else {
    console.log('Failed to listen to port ' + 8080);
  }
});

After connecting with a socket and waiting exactly 1 minute, no matter what idleTimeout is set to (tested 3200 and 0 multiple times, whilst also trying to change maxPayloadLength in case the socket is trying to send something under the hood like ACK or something? whatever, just trying to check everything before posting an issue here). I wonder why that is. Maybe I'm doing something wrong.
I understand the connection closing after these 3200 seconds, or never closing if idleTimeout is set to 0, but it always closes after 1 minute, which is not cool.

[uasan]

Maybe closing connection by timeout in proxy server (Nginx, HAProxy, etc...)

[supahero1]

Oopsie. Turns out to be Nginx. Did not know it has idle timeout too. Sorry for trouble.