diff -r bbbccb0b3a66 -r 85194bd49119 cubicweb/web/application.py
--- a/cubicweb/web/application.py	Tue Mar 26 13:08:13 2019 +0100
+++ b/cubicweb/web/application.py	Fri Mar 22 17:42:36 2019 +0100
@@ -23,7 +23,6 @@
 import sys
 from time import clock, time
 from contextlib import contextmanager
-from warnings import warn
 
 from six import text_type, binary_type
 from six.moves import http_client
@@ -37,7 +36,7 @@
 from cubicweb.repoapi import anonymous_cnx
 from cubicweb.web import cors
 from cubicweb.web import (
-    LOGGER, StatusResponse, DirectResponse, Redirect, NotFound, LogOut,
+    LOGGER, DirectResponse, Redirect, NotFound, LogOut,
     RemoteCallFailed, InvalidSession, RequestError, PublishException)
 
 # make session manager available through a global variable so the debug view can
@@ -357,11 +356,6 @@
                 # Return directly an empty 200
                 req.status_out = 200
                 result = b''
-            except StatusResponse as ex:
-                warn('[3.16] StatusResponse is deprecated use req.status_out',
-                     DeprecationWarning, stacklevel=2)
-                result = ex.content
-                req.status_out = ex.status
             except Redirect as ex:
                 # Redirect may be raised by edit controller when everything went
                 # fine, so attempt to commit