# HG changeset patch
# User Philippe Pepiot <philippe.pepiot@logilab.fr>
# Date 1529077526 -7200
# Node ID 39208d9256a2ba43d0aa04306940eb04322e5e35
# Parent  562b09ec963a7b2b7c3b547494dca6707ca5d345
[py3] ensure AjaxController return bytes

publish() must return bytes, when the @ajaxfunc decorated method return None, this raised:

TypeError: You cannot set Response.body to a text object (use Response.text)

diff -r 562b09ec963a -r 39208d9256a2 cubicweb/web/views/ajaxcontroller.py
--- a/cubicweb/web/views/ajaxcontroller.py	Wed Jun 13 11:09:17 2018 +0200
+++ b/cubicweb/web/views/ajaxcontroller.py	Fri Jun 15 17:45:26 2018 +0200
@@ -163,7 +163,7 @@
                     fname, args, exc)
             raise RemoteCallFailed(exc_message(exc, self._cw.encoding))
         if result is None:
-            return ''
+            return b''
         # get unicode on @htmlize methods, encoded string on @jsonize methods
         elif isinstance(result, text_type):
             return result.encode(self._cw.encoding)