parse "gopher://null.host:0/³\x86\x8d\xb5~\x8f^\xb6\xa4\x80\x1c\x90\xf4R\x10\xcep\x17\xdc\x0e*\xb4\xb2r\xceL\xd4\x05\x92\xaeZ\x9d\vM\x81\x83\xec\xd4\xd2\xdd\xcb\xd7UN\xbe`\xffj\x00\xd82\xe0\x974V!\xa8\x9a\xee\x8bh\x92-\xe2\\p4\xef\xb2\xc5խ\xc3G\xbc\xfdAJ=\x1e\x828\xf2G\x81\x11њ\x1b\xb8S\xfb\xfe\x88\xb8\xc8": net/url: invalid control character in URL