Can't get objects to be equal

I'm getting the following fail message from Mocha:

Uncaught AssertionError: expected Object { name: 'John Doe' } to be Object { name: 'John Doe' }
+ expected - actual

Here is my test code:

describe("A user gets registered", function () {
    it('should create a SINGLE user on /api/register POST', function (done) {
        //calling REGISTER api
        server
                .post('/api/register')
                .send({
                    name: "John Doe",
                    username: "john",
                    password: "open"
                })
                .expect("Content-type", /json/)
                .expect(200)
                .end(function (err, res) {
                    var data = {
                        "name": "John Doe"
                    };
                    res.status.should.equal(200);
                    res.body.should.equal(data);
                    done();
                });
    });
});

And here is my actual code:

router.post('/', function (req, res) {
    var data = {name: 'John Doe'};
    res.status(200).json(data);
});

module.exports = router;

However I shouldn't get a fail message from Mocha, because both object are equally the same. But somehow they aren't so I really don't know what I'm doing wrong.

I have already checked the spacing of both objects so that shouldn't be the case.