AngularJs routing, multiple requests in server

I want to use angularjs routing, I'm using but it's making extra requests in server side. Anyone know the solution of this problem, or I'm doing something wrong?

Client app.js

app.config(['$routeProvider', '$locationProvider', function($routeProvider, $locationProvider) {
    $locationProvider.html5Mode({enabled: true, requireBase: false})
    $routeProvider.
        when('/', {
            templateUrl: '/tpl/main.tmp.html',
            controller: 'MainCtrl'
        })
        .otherwise({redirectTo: '/'})
}])

//routes.js
app.get('/', function(req, res) {
    console.log("test")
    res.render(__dirname+'/public/tpl/index.html', siteConfig)
})
//output
//test
//test
//test
//test