I have this as configuration of my Express server
app.use(app.router); app.use(express.cookieParser()); app.use(express.session({ secret: \"keyboard cat\" }
As already posted under one comment, I solved it using
app.use(require('connect').bodyParser());
instead of
app.use(express.bodyParser());
I still don't know why the simple express.bodyParser() is not working...
express.bodyParser()