parse "gopher://null.host:0/a\xe3Aa\xca\x16\x92\x97JLM\x01@HAX\x060h\x8aI\xe6\xa8G\x16\xd1\x1c\x02\xf80\xd2E\xc0\xc4\x1c": net/url: invalid control character in URL