Django debug_toolbar vs handle403

gistfile1.py

# django.core.handlers.base.py

    def get_response(self, request):
        "Returns an HttpResponse object for the given HttpRequest"

# debug_toolbar add own middleware that set urlconf for request (it's module)
# so handler403 doesn't work

                response = None
                # Apply request middleware
                for middleware_method in self._request_middleware:
                    response = middleware_method(request)
                    if response:
                        break


# debug_toolbar middleware

    def process_request(self, request):
        __traceback_hide__ = True
        if self.show_toolbar(request):
            urlconf = getattr(request, 'urlconf', settings.ROOT_URLCONF)
            if isinstance(urlconf, basestring):
                urlconf = import_module(getattr(request, 'urlconf', settings.ROOT_URLCONF))

            if urlconf not in self._urlconfs:
                new_urlconf = imp.new_module('urlconf')
                new_urlconf.urlpatterns = debug_toolbar.urls.urlpatterns + \
                        list(urlconf.urlpatterns)

                if hasattr(urlconf, 'handler403'):
                    new_urlconf.handler403 = urlconf.handler403
                if hasattr(urlconf, 'handler404'):
                    new_urlconf.handler404 = urlconf.handler404
                if hasattr(urlconf, 'handler500'):
                    new_urlconf.handler500 = urlconf.handler500

                self._urlconfs[urlconf] = new_urlconf

            request.urlconf = self._urlconfs[urlconf]

            toolbar = DebugToolbar(request)
            for panel in toolbar.panels:
                panel.process_request(request)
            self.__class__.debug_toolbars[threading.currentThread().ident] = toolbar