Like the previous comment mention, the message "It looks like you are trying to access MongoDB over HTTP on the native driver port." its a warning because you are missunderstanding this line: mongoose.connect('mongodb://localhost/info'); and browsing this url: http://localhost:28017/
However, if you want to see the mongo's admin web page, you could do it, with this command:
mongod --rest --httpinterface
browsing this url: http://localhost:28017/
the parameter httpinterface activate the admin web page, and the parameter rest its needed for activate the rest services the page require