parse "gopher://null.host:0/þU\xb3\x95_֮z\x87t\xbb\x84\u007fT\xa9\xf7N\x93\x8b;'\xca\xdbC\xedV\xaeE\xf0\xed\xe5\xddѪ|\xe7q>0\x82": net/url: invalid control character in URL