parse "gopher://null.host:0/x\xf1)\x93\xb8\x1a\x01\xb5\x01\\\xa1ɤ\x99\xcb\xc7\x02.\x9f\xf8&\xbf \xdfx\xea\xcc=\xda\x14\x16\x9e\xb9\x8ak\x90~|\xe1t": net/url: invalid control character in URL