def _is_origin_checked(self, freq, orig_response):
"""
:return: True if the remote web application verifies the Referer before
processing the HTTP request.
"""
fake_ref = 'http://www.w3af.org/'
mutant = HeadersMutant(copy.deepcopy(freq))
headers = mutant.get_dc()
headers['Referer'] = fake_ref
mutant.set_token(('Referer',))
mutant_response = self._uri_opener.send_mutant(mutant)
if not self._is_resp_equal(orig_response, mutant_response):
return True
return False
