parse "gopher://null.host:0/û\x116\x9f\x8f\xe5j\xe2\xaafW\xcaE\xba\x91\x13\x90n{\xe6\\eƥ\x92\xa02:Q\xe2\v\x87o9\xf7\xcf*\x8a\xc9\xe9\xff\x913@\xfeo{RB\x83\xff?\xd5\x10": net/url: invalid control character in URL