def test_compiled_subdomain_regex(self):
        for sub in letters:
            domain = sub % "http://%s.example.com"
            for resp in self.iter_responses('/test_compiled_subdomain_regex',
                                            headers={'origin': domain}):
                self.assertEqual(domain, resp.headers.get(ACL_ORIGIN))
dataset/ETHPy150Open corydolphin/flask-cors/tests/extension/test_app_extension.py/AppExtensionRegexp.test_compiled_subdomain_regex/swapped operands of `%`