Django Rest Framework JWT- got 401 error when token is a part of Header

Working with Django REST Framework JWT at server side and AngularJs and Restangular at client side, when I set username and password in header:

RestangularProvider.setDefaultHeaders({'Authorization': 'Basic ' +$base64.encode('username:password')}); 

it works correctly.

But when I set token as part of header :

RestangularProvider.setDefaultHeaders({Authorization:'Bearer '+ StorageService.get("access_token")}); 

I get 401 (UNAUTHORIZED) error.

My viewset:

class BookViewSet(DefaultsMixin, viewsets.ModelViewSet): queryset = Book.objects.all() permission_classes = (permissions.IsAuthenticated,) serializer_class = BookSerializer 

Setting:

REST_FRAMEWORK = { 'DEFAULT_PERMISSION_CLASSES': ( 'rest_framework.permissions.IsAuthenticated', ), 'DEFAULT_AUTHENTICATION_CLASSES': ( 'rest_framework.authentication.SessionAuthentication', 'rest_framework.authentication.BasicAuthentication', 'rest_framework_jwt.authentication.JSONWebTokenAuthentication' ), 

}

Request Headers (part)

Request Headers Accept:application/json, text/plain, */* Accept-Encoding:gzip, deflate, sdch Authorization:Bearer"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJlbWFpbCI6InRqYW5hdGkxMUBnbWFpbC5jb20iLCJleHAiOjE0NDc2NzYxNDcsInVzZXJfaWQiOjEwOSwidXNlcm5hbWUiOiJwcDEiLCJvcmlnX2lhdCI6MTQ0NzY3MzE0N30.ImkGmK9_TNU5lCvcGzgNi-1XS_Q4c_AxHSnJOcjn6O8" ... 

Thanks for your help!