text: var http = require('http');
  var url = require('url');
  var querystring = require('querystring');
  
  function accept(req, res) {
  
    res.writeHead(200, {
      'Content-Type': 'text/plain',
      'Cache-Control': 'no-cache'
    });
  
    res.end("OK");
  }
  
  http.createServer(accept).listen(8080);
  