'\'attachment\', specifying an absolute filename in the fs root.
Either ignore the filename altogether, or discard the path information.
Note that test results under Operating Systems other than Windows vary
(see
http://lists.w3.org/Archives/Public/ietf-http-wg/2011JanMar/0112.html);
apparently some UAs consider the backslash a legitimate filename
character.'

@pytest.mark.posix
def test_attabspathwin_unix(self, header_checker):

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