Node.js proxy for couchdb audio

html

<audio controls="controls">
  <source src="http://machine.local:8976/px/ttt/cry-bla.mp3" type="audio/mpeg">
</audio>

js

var http = require('http');
var u  = require('util');

http.createServer(function(request, response) {
  u.log(request.connection.remoteAddress + ": " + request.method + " " + request.url);
  var proxy = http.createClient(5984, "localhost")
  var proxy_request = proxy.request(request.method, request.url, request.headers);
  proxy_request.addListener('response', function (proxy_response) {
    proxy_response.addListener('data', function(chunk) {
      response.write(chunk, 'binary');
    });
    proxy_response.addListener('end', function() {
      response.end();
    });
    proxy_response.headers['content-type'] = 'audio/mp3';
    console.log(proxy_response.headers);
    response.writeHead(proxy_response.statusCode, proxy_response.headers);
  });
  request.addListener('data', function(chunk) {
    proxy_request.write(chunk, 'binary');
  });
  request.addListener('end', function() {
    proxy_request.end();
  });
}).listen(8976);