Node.js und express - wie man ein Cookie liest, ist aber undefiniert

Ich benutze das Folgende, um ein Cookie mit Express zu setzen.

res.cookie('test', 'yes', { 
    expires: new Date(Date.now() + 365*2*24*60*60*1000), 
    httpOnly: true 
});

Ich benutze die Middleware, um den Cookie zu lesen:

app.use(express.cookieParser());

var cookie_id = req.cookies.test;

Das Problem ist, dass cookie_id undefiniert ist, wenn es 'yes' wäre.

Express server listening on port 8060 in development mode
TypeError: Cannot read property 'test' of undefined
    at /home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/app.js:48:29
    at callbacks (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/lib/router/index.js:272:11)
    at param (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/lib/router/index.js:246:11)
    at pass (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/lib/router/index.js:253:5)
    at Router._dispatch (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/lib/router/index.js:280:4)
    at Object.handle (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/lib/router/index.js:45:10)
    at next (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/node_modules/connect/lib/http.js:204:15)
    at Object.methodOverride [as handle] (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/node_modules/connect/lib/middleware/methodOverride.js:35:5)
    at next (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/node_modules/connect/lib/http.js:204:15)
    at Object.bodyParser [as handle] (/home/ubuntu/workspace/rtbopsConfig/rtbServers/rtbNodejsServer/nodeServer/node_modules/express/node_modules/connect/lib/middleware/bodyParser.js:88:61)

Was habe ich falsch gemacht?

Accept  text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip, deflate
Accept-Language en-us,en;q=0.5
Connection  keep-alive
Cookie  test=yes
Host    127.0.0.1:8060
User-Agent  Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:12.0) Gecko/20100101 Firefox/12.0
// Configuration
app.configure(function() {
  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(express.static(__dirname + '/public'));
  app.use(express.cookieParser());
});

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