parse "gopher://null.host:0/\u00867^h6\xcdmwR7Y\x80\x80>}\xcc\xc2w\x9c\xea\x0e`y\xf0\xcf\xdc>\xe6ԛ}@\x99{a\xbe\x1eL\xe1m\xb8\xa0Y\xcap`\x97\x11\xaf\a\xf2": net/url: invalid control character in URL