Rails CSRF token issue in Angular routes - ruby-on-rails

Question

I am using AngularJS routes with rails. For authencation I am using using Angular Devise directive. I am facing some issue with CSRF token.
User Controller
function userController($scope,$http,$route,$location,Auth,User) {
$scope.login = function(){
Auth.login($scope.user).then(function(user) {
User.setCurrentUser(user);
$location.path("/logout");
}, function(error) {
// Authentication failed...
});
}
$scope.logout = function(){
Auth.logout().then(function() {
$location.path("/logout");
}, function(error) {
// An error occurred logging out.
});
}
}
Angular Routes.js
myApp.config(function($routeProvider, $locationProvider) {
$locationProvider.html5Mode(true);
$routeProvider
.when("/login",
{ templateUrl: "/assets/user/login.html",
controller: "userController" })
.when("/logout",
{ templateUrl: "/assets/user/logout.html",
controller: "userController" })
.otherwise({ redirectTo: "/login" });
});
Templates/login.html
<div>
<label for="user_email">Email</label><br>
<input autofocus="autofocus" ng-model="user.email" id="user_email" name="user[email]" type="email" value="">
</div>
<div>
<label for="user_password">Password</label><br>
<input autocomplete="off" ng-model="user.password" id="user_password" name="user[password]" type="password">
</div>
<div>
<input name="commit" type="submit" ng-click="login()" value="Sign in">
</div>
Templates/logout.html
LOGOUT
When I click on Sign-in button which call login() function with user datas and login was successful , after that logout.html page is rendered using angular routes ($location.path) , if I click on logout button logout.html , it throws following error.
ActionController::InvalidAuthenticityToken
Since the authtoken was already used by login action and its no more valid. I am not sure how to generate new one with IN angularJS , If I refresh the page the logout is working.

Answer 1

I replaced
gem 'ng-rails-csrf' to gem 'angular_rails_csrf'
It started working , but I am not sure why Angular devise suggested "ng-rails-csrf" , which not refreshing the token. Simply adding 'angular_rails_csrf' did the trick.