parse "gopher://null.host:0/\x14\xbc\x9d\x1af\x85\x84\x8ei\xbfKr\x8d\xbf\xb2)M*\x0f \xf9\x81\x8f\xb0\xe1\\\"\b\b\xa9\x8d\xe8{h\x94<\x88\xc6al&c\xbf\xb4\\\x9b\xc0\xe0\xe4Rְ=kV\x0e~\xfdĹ$ ": net/url: invalid control character in URL