Works try and catch on esp8266

It seems to work on esp32
On esp32 I get a catch, but on esp8266 nothing happens

// mqtt_simple_V0.6_test01.js

var ver = 'V0.6';

var client;

function onConnect() {
  console.log('her er der noget');
}


function onInit(){
  var logon = require('LOGON');

  console.log("Connecting to WiFi");
  wifi = require("Wifi");
  wifi.connect(logon.ssid, {password:logon.pass}, function(err){
    console.log("connected? err=", err, "info=", wifi.getIP());

    console.log('creating client');

    try {
      client = require("net").connect({host: "192.168.20.21", port: 1883}, onConnect);
    } // end try

    catch(e) {
      console.log('err ' + e);
    } // end catch

  });
}


onInit(); // remove before save()

/* on esp8266
No error. Minified 58 bytes to 49 bytes.
>
 ____                 _
|  __|___ ___ ___ _ _|_|___ ___
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 1v96.51 (c) 2018 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
Flash map 512KB:256/256, manuf 0xe0 chip 0x4014
>Connecting to WiFi
=undefined
connected? err= null info= {
  "ip": "192.168.20.30",
  "netmask": "255.255.255.0",
  "gw": "192.168.20.1",
  "mac": "5c:cf:7f:e7:d2:7b"
 }
creating client
> 
*/

/* on esp32
No error. Minified 58 bytes to 49 bytes.
>
 ____                 _
|  __|___ ___ ___ _ _|_|___ ___
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 1v96.35 (c) 2018 G.Williams
Espruino is Open Source. Our work is supported
only by sales of official boards and donations:
http://espruino.com/Donate
>Connecting to WiFi
=undefined
connected? err= null info= {
  "ip": "192.168.20.50",
  "netmask": "255.255.255.0",
  "gw": "192.168.20.1",
  "mac": "d8:a0:1d:40:6e:40"
 }
creating client
ERROR: Connect failed (err 113)
err InternalError: Unable to create socket
>
*/

Yes, on esp32, I get the error because I have not started the client, but nothing on esp8266