Spec justification for € to Ÿ in UTF-8 documents browser behaviour wanted
问题 The HTML 4.01 spec says for hexadecimal character references Numeric character references specify the code position of a character in the document character set. So if the document character set encoding is UTF-8, the numeric references should specify a Unicode code point. The HTML5 spec says for hexadecimal character references The ampersand must be followed by a U+0023 NUMBER SIGN character (#), which must be followed by either a U+0078 LATIN SMALL LETTER X character (x) or a U+0058 LATIN