Espruino/Wifi - getIP() returns undefined but callback receives null,ip

Setup is as documented (and required to start with saved code after power on:

var WIFI_NAME = "mySSID";
var WIFI_OPTIONS = { password : "mySSIDPassword" };
var wifi = null;

function onInit() {
  wifi = require("EspruinoWiFi");
  wifi.connect(WIFI_NAME, WIFI_OPTIONS, function(err) {
    if (err) {
      console.log("Connection error: "+err);
      return;
    }
    console.log("Connected!");
    console.log("getIP() returned: ",wifi.getIP(function(val){ console.log("getIP() in callback: ",val); }));
  });
}

Console:

 _____                 _
|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v94 Copyright 2016 G.Williams
>
=undefined
>save()
=undefined
Erasing Flash...
Writing..........................
Compressed 114368 bytes to 23555
Checking...
Done!
Running onInit()...
Connected!
getIP() returned:  undefined
getIP() in callback:  null
> 

Even executed much later, I get the same undefined / null.