Sample of discrepancy between mongo db parsers

example.js

var Db = require('mongodb').Db;
var Server = require('mongodb').Server;
var Connection = require('mongodb').Connection;
var host = process.env['MONGO_NODE_DRIVER_HOST'] != null ? process.env['MONGO_NODE_DRIVER_HOST'] : 'localhost';
var port = process.env['MONGO_NODE_DRIVER_PORT'] != null ? process.env['MONGO_NODE_DRIVER_PORT'] : Connection.DEFAULT_PORT;
var nativeparser = new Db('testing', new Server(host, port, {}), {native_parser:true});
var jsparser = new Db('testing', new Server(host, port, {}));

var Foo = function(){
  this.foo = "foo";
  this.bar = "bar";
}

Foo.prototype = {
  test : function(){
    //this property shouldn't be in database
  },
  chicken : "nuggets" //makes sense for this to be in serialization
}

nativeparser.open(function(err, db) {
  db.collection('test', function(err, collection) {
    collection.insert(new Foo(),function(){
      db.close();
    });
  });
});

jsparser.open(function(err, db) {
  db.collection('test', function(err, collection) {
    collection.insert(new Foo(),function(){
      db.close();
    });
  });
});