parse "gopher://null.host:0/Ú\xefP\xcb\xdf7\xe0\xa0\xd8\x12H\xe3\x0fF\xafY\xa1Qjd\xbcܚ\x90\xe1 \xd2\xff\x81\xd2 r/'y\xfb\xb9-'P\v4S\x97\x10\xcd=\xbd": net/url: invalid control character in URL