title: How to send consecutive requests with HTTP keep-alive in node.js?
body: <p>I'm using node.js 0.6.18, and the following code makes node.js close the TCP connection between every two requests (verified with <code>strace</code> on Linux). How do I make node.js reuse the same TCP connection for multiple HTTP requests (i.e. keep-alive)? Please note that the webserver is capable of keep-alive, it works with other clients. The webserver returns a chunked HTTP response.</p>
  
  <pre><code>var http = require('http');
  var cookie = 'FOO=bar';
  function work() {
    var options = {
        host: '127.0.0.1',
        port: 3333,
        path: '/',
        method: 'GET',
        headers: {Cookie: cookie},
    };
    process.stderr.write('.')
    var req = http.request(options, function(res) {
      if (res.statusCode != 200) {
        console.log('STATUS: ' + res.statusCode);
        console.log('HEADERS: ' + JSON.stringify(res.headers));
        process.exit(1)
      }
      res.setEncoding('utf8');
      res.on('data', function (chunk) {});
      res.on('end', function () { work(); });
    });
    req.on('error', function(e) {
      console.log('problem with request: ' + e.message);
      process.exit(1);
    });
    req.end();
  }
  work()
  </code></pre>