server.js

var http = require('http'),
    sys = require('sys'),
    fs = require('fs'),
    url = require('url'),
    queryString = require('querystring'),
    proxy = require('./htmlfiltre'),
    YUI = require('yui3').YUI;

http.createServer(function(req, res) {
  proxy.htmlFiltre(req, { foreignHost: 'www.instapaper.com', foreignHostPort: 80 }, function (status, buffer, request, response, loc) {
    var headers = response.headers;

    if (headers['content-type'].match(/text\/html/)) {
      YUI({ debug: true }).use('nodejs-dom', 'event', 'node', function(Y) {
        // Do something here to get Y.Browser.document with buffer as the HTML document
      });
      
      sys.puts(JSON.stringify(response.headers));
      sys.puts(buffer);
    }

    res.writeHead('200', headers);
    res.write(buffer, 'utf8');
    res.end();
  }, function(loc) {
    res.writeHead('302', { location: loc });
    res.end();
  });
}).listen(8080);