angular-conditional-routing

app.config(function($routeProvider){
    $routeProvider
    .when('/secretpage' ,{    
    templateUrl: "templates/secretpage.html",
    resolve:{
        "check":function(authService,$location){   //function to be resolved, accessFac and $location Injected
            if(authService.isAuthenticated()){     //This happens before the page loads
                //it's ok to see the content
            }else{
                $location.path('/');                //redirect user to home if it does not have permission.
                alert("You don't have access here");
            }
        }
    }
    })