Stop httpServer

Thanks for the reply Gordon. Yes it's for an ESP32 (ESP-WROOM-32) with Espruino build 1v94. Here's the full example where I get an error.

var http = require('http');

var server=http.createServer(function(req, res){
    res.writeHead(200);
    res.end("Hello World");
    console.log("res sent");
}).listen(80);

setTimeout(function(){
    server.close();
},5000);

And the error message I get

Uncaught Error: Field or method "close" does not already exist, and can't create it on undefined
 at line 1 col 7
server.close();
      ^

The webserver continues to work before and after the error. I tried this on an ESP8226 and get the same error also.

Again, any help is very much appreciated.