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'use strict';
var http = require('http');
var port = parseInt(process.env.PORT, 10) || 8000;
var defaultLag = parseInt(process.argv[2], 10) || 100;
http.createServer(function(req, res) {
res.writeHead(200, { 'content-type': 'text/plain',
'content-length': '2' });
var lag = parseInt(req.url.split('/').pop(), 10) || defaultLag;
setTimeout(function() {
res.end('ok');
}, lag);
}).listen(port, 'localhost');