diff --git a/flask_apispec/extension.py b/flask_apispec/extension.py
index 5dd03d0..3153c72 100644
--- a/flask_apispec/extension.py
+++ b/flask_apispec/extension.py
@@ -38,13 +38,21 @@ def get_pet(pet_id):
         OPTIONS requests in the specification
     """
 
-    def __init__(self, app=None, document_options=True):
+    def __init__(self,
+    static_folder='./static',
+    template_folder='./templates',
+    static_url_path='/flask-apispec/static',
+    app=None, 
+    document_options=True):
         self._deferred = []
         self.app = app
         self.view_converter = None
         self.resource_converter = None
         self.spec = None
         self.document_options = document_options
+        self.static_folder = static_folder
+        self.template_folder = template_folder
+        self.static_url_path = static_url_path
 
         if app:
             self.init_app(app)
@@ -74,9 +82,9 @@ def add_swagger_routes(self):
         blueprint = flask.Blueprint(
             'flask-apispec',
             __name__,
-            static_folder='./static',
-            template_folder='./templates',
-            static_url_path='/flask-apispec/static',
+            static_folder=self.static_folder,
+            template_folder=self.template_folder,
+            static_url_path=self.static_url_path,
         )
 
         json_url = self.app.config.get('APISPEC_SWAGGER_URL', '/swagger/')
diff --git a/flask_apispec/utils.py b/flask_apispec/utils.py
index 686736a..9ff1052 100644
--- a/flask_apispec/utils.py
+++ b/flask_apispec/utils.py
@@ -6,8 +6,8 @@
 def resolve_resource(resource, **kwargs):
     resource_class_args = kwargs.get('resource_class_args') or ()
     resource_class_kwargs = kwargs.get('resource_class_kwargs') or {}
-    if isinstance(resource, type):
-        return resource(*resource_class_args, **resource_class_kwargs)
+    # if isinstance(resource, type):
+    #     return resource(*resource_class_args, **resource_class_kwargs)
     return resource