this-hangs.js

https = require('https')

setInterval(function(){console.log("still alive...")}, 1000)
https.get({ headers: {}, 
    path: '/barista/-/barista-0.0.3.tgz',
  host: 'registry.npmjs.org',
  port: 443,
  secure: true, 
  agent : false, // remove THIS
   }, function(res) {
    console.log("statusCode: ", res.statusCode);
      console.log("headers: ", res.headers);

        res.on('data', function(d) {
              process.stdout.write(d);
                }); 

}).on('error', function(e) {
    console.error(e);
});

this-works.js

https = require('https')

setInterval(function(){console.log("still alive...")}, 1000)
https.get({ headers: {}, 
    path: '/barista/-/barista-0.0.3.tgz',
  host: 'registry.npmjs.org',
  port: 443,
  secure: true, 
   }, function(res) {
    console.log("statusCode: ", res.statusCode);
      console.log("headers: ", res.headers);

        res.on('data', function(d) {
              process.stdout.write(d);
                }); 

}).on('error', function(e) {
    console.error(e);
});