parse "gopher://null.host:0/°\xc0\xbe.\xfd\xa9X\xe3\xde\xcb\xc0\xbc.\x82w]\xb4S\xd7ti\b\xb0\xae\x8b\xe0\\\x17\xc1\xb8w=\xf86\x02\xd8\xd6Ep\xed\xe3,\x8d\x0f]\x04\xcf>v\xb1\xecc\x17\xc7>\xces\xfdt\xf1\xcb)O\xff": net/url: invalid control character in URL