added httprequest fixes

Author: glassresistor

provider/views.py

@@ -292,14 +292,13 @@ class Redirect(OAuthView, Mixin):
     an error.
     """
 
-    def error_response(self, error, mimetype='application/json', status=400,
+    def error_response(self, error, mimetype='deprecated', status=400,
             **kwargs):
         """
         Return an error response to the client with default status code of
         *400* stating the error as outlined in :rfc:`5.2`.
         """
-        return HttpResponse(json.dumps(error), mimetype=mimetype,
-                status=status, **kwargs)
+        return HttpResponse(json.dumps(error), status=status, **kwargs)
 
     def get(self, request):
         data = self.get_data(request)
@@ -457,14 +456,13 @@ def invalidate_access_token(self, access_token):
         """
         raise NotImplementedError
 
-    def error_response(self, error, mimetype='application/json', status=400,
+    def error_response(self, error, mimetype='deprecated', status=400,
             **kwargs):
         """
         Return an error response to the client with default status code of
         *400* stating the error as outlined in :rfc:`5.2`.
         """
-        return HttpResponse(json.dumps(error), mimetype=mimetype,
-                status=status, **kwargs)
+        return HttpResponse(json.dumps(error), status=status, **kwargs)
 
     def access_token_response(self, access_token):
         """
@@ -487,9 +485,7 @@ def access_token_response(self, access_token):
         except ObjectDoesNotExist:
             pass
 
-        return HttpResponse(
-            json.dumps(response_data), mimetype='application/json'
-        )
+        return HttpResponse(json.dumps(response_data))
 
     def authorization_code(self, request, data, client):
         """