'\'attachment\', specifying a filename of foo-%41.html.
Using an escape character (this tests whether adding an escape
character inside a %xx sequence can be used to disable the
non-conformant %xx-unescaping).
UA should offer to download the resource as "foo-%41.html".'

def test_attwithfnrawpctencaq(self, header_checker):

    header_checker.check_filename('attachment;    filename="foo-%\\41.html"', 'foo-%41.html')
