diff --git a/Allura/allura/lib/custom_middleware.py b/Allura/allura/lib/custom_middleware.py
index 6c121b4..5b2d4e9 100644
--- a/Allura/allura/lib/custom_middleware.py
+++ b/Allura/allura/lib/custom_middleware.py
@@ -94,7 +94,9 @@ def __call__(self, environ, start_response):
         status, headers, app_iter, exc_info = call_wsgi_application(
             self.app, environ, catch_exc_info=True)
         is_api_request = environ.get('PATH_INFO', '').startswith('/rest/')
-        if status[:3] == '401' and not is_api_request:
+        is_service_request = '/service-' in environ.get('PATH_INFO', '')
+        do_not_show_login = is_api_request or is_service_request
+        if status[:3] == '401' and not do_not_show_login:
             login_url = tg.config.get('auth.login_url', '/auth/')
             if environ['REQUEST_METHOD'] == 'GET':
                 return_to = environ['PATH_INFO']