diff -r 3cd5ac8d43ed -r 7a7ce3da28fb cubicweb/devtools/testlib.py
--- a/cubicweb/devtools/testlib.py	Fri Nov 04 11:19:11 2016 +0100
+++ b/cubicweb/devtools/testlib.py	Fri Nov 04 11:19:29 2016 +0100
@@ -841,7 +841,7 @@
             if data is not None:
                 req.form.update(data)
             with real_error_handling(self.app):
-                result = self.app_handle_request(req, req.relative_path(False))
+                result = self.app_handle_request(req)
             return result, req
 
     @staticmethod