diff -r 9fa65579520f -r cc71a801b846 cubicweb/test/unittest_utils.py
--- a/cubicweb/test/unittest_utils.py Tue Aug 27 20:16:01 2019 +0200
+++ b/cubicweb/test/unittest_utils.py Mon Feb 10 16:56:02 2020 +0100
@@ -287,6 +287,9 @@
head.add_js(base_url + u'bob1.js')
head.add_js(u'http://ext.com/bob2.js')
head.add_js(u'http://ext.com/bob3.js')
+ head.write_front(
+ ''
+ )
head.add_css(base_url + u'bob4.css')
head.add_css(base_url + u'bob5.css')
head.add_css(base_url + u'bob6.css', 'print')
@@ -295,6 +298,7 @@
head.add_ie_css(base_url + u'bob9.css', 'print', u'[if lt IE 7]')
result = head.getvalue()
expected = u"""
+