Proxy tests fail after Qt update in Q

The proxy tests in Q fail in the following way:

ubuntu_sso.qt.tests.test_reset_password.ResetPasswordTestCase.test_show_hide_event
===============================================================================
[FAIL]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1045, in _inlineCallbacks
    result = g.send(result)
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 572, in test_anonymous_proxy_is_used
    self.assert_header_contains(result.headers["Via"], "squid")
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 564, in assert_header_contains
    self.assertTrue(any(expected in value for value in headers))
twisted.trial.unittest.FailTest: None

ubuntu_sso.utils.webclient.tests.test_webclient.BasicProxyTestCase.test_anonymous_proxy_is_used
===============================================================================
[FAIL]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1045, in _inlineCallbacks
    result = g.send(result)
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 620, in test_auth_proxy_is_requested_creds_bad_details
    self.assert_header_contains(result.headers["Via"], "squid")
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 564, in assert_header_contains
    self.assertTrue(any(expected in value for value in headers))
twisted.trial.unittest.FailTest: None

ubuntu_sso.utils.webclient.tests.test_webclient.BasicProxyTestCase.test_auth_proxy_is_requested_creds_bad_details
===============================================================================
[FAIL]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1045, in _inlineCallbacks
    result = g.send(result)
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 668, in test_auth_proxy_is_requested_creds_bad_details_everywhere
    self.assert_header_contains(result.headers["Via"], "squid")
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 564, in assert_header_contains
    self.assertTrue(any(expected in value for value in headers))
twisted.trial.unittest.FailTest: None

ubuntu_sso.utils.webclient.tests.test_webclient.BasicProxyTestCase.test_auth_proxy_is_requested_creds_bad_details_everywhere
===============================================================================
[FAIL]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1045, in _inlineCallbacks
    result = g.send(result)
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 643, in test_auth_proxy_is_requested_creds_bad_details_user
    self.assert_header_contains(result.headers["Via"], "squid")
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 564, in assert_header_contains
    self.assertTrue(any(expected in value for value in headers))
twisted.trial.unittest.FailTest: None

ubuntu_sso.utils.webclient.tests.test_webclient.BasicProxyTestCase.test_auth_proxy_is_requested_creds_bad_details_user
===============================================================================
[FAIL]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1045, in _inlineCallbacks
    result = g.send(result)
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 599, in test_auth_proxy_is_used_creds_requested
    self.assert_header_contains(result.headers["Via"], "squid")
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 564, in assert_header_contains
    self.assertTrue(any(expected in value for value in headers))
twisted.trial.unittest.FailTest: None

ubuntu_sso.utils.webclient.tests.test_webclient.BasicProxyTestCase.test_auth_proxy_is_used_creds_requested
===============================================================================
[FAIL]
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 1045, in _inlineCallbacks
    result = g.send(result)
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 580, in test_authenticated_proxy_is_used
    self.assert_header_contains(result.headers["Via"], "squid")
  File "/home/mandel/Canonical/ubuntu-sso-client/trunk/ubuntu_sso/utils/webclient/tests/test_webclient.py", line 564, in assert_header_contains
    self.assertTrue(any(expected in value for value in headers))
twisted.trial.unittest.FailTest: None

ubuntu_sso.utils.webclient.tests.test_webclient.BasicProxyTestCase.test_authenticated_proxy_is_used
-------------------------------------------------------------------------------
Ran 755 tests in 35.308s

FAILED (skips=3, failures=7, successes=745)