demonstrate crash in node-imap

imapMonitor.js

var sys = require('sys');
var imap = require('imap');
var mailCnt = undefined;

function dumpMsg(aMsg) {
  console.log(JSON.stringify(aMsg, null, "\t"));
  if (aMsg.headers) {
    console.log("New mail, subject: " + aMsg.headers["subject"].join(", "));
  } else {
    console.log("no headers for us? :-(");
  }
  mailCnt++;
}

function beginMsg(aMsg) {
  aMsg.on('end', dumpMsg.bind(undefined, aMsg));
}

function newMailCallback(conn, aCount) {
  console.log("new mail detected (" + aCount + " messages), trying to fetch");
  var msgs = mailCnt + ":*";
  var fetch = conn.fetch(msgs, { markSeen : false, request: { struct : false, headers : [ 'Subject'  ], body: false } });
  fetch.on('message', beginMsg);
}

function connectCallback(conn, aBoxName, aError) {
  conn.openBox(aBoxName, true /*readonly*/, function (aError, aBox) {
      if (aError) {
	console.log("error on connect: " + aError);
	throw "die";
      }
      // console.log("box is open: " + sys.inspect(aBox));
      mailCnt = aBox._uidnext;
      conn.on('mail', newMailCallback.bind(undefined, conn));
      // newMailCallback(1);
    });
}

exports.start = function(aMailboxParams) {
  var conn = new (imap.ImapConnection)(aMailboxParams);
  conn.connect(connectCallback.bind(undefined, conn, aMailboxParams.mailbox));
}

exports.start({username:'...', password:'...', host: '...', port: '143', mailbox: 'INBOX.test'});