NewDecoder(strings.NewReader(data)) decoder.CharsetReader = charset.NewReaderLabel Ref: https://encoding.spec.whatwg.org Name Labels UTF-8 6 Legacy single-byte encodings 168 Legacy multi-byte Chinese (simplified)

ta []byte) string DetectContentType implements the algorithm described at http://mimesniff.spec.whatwg.org/ to determine the Content-Type of the given data. It considers at most the first 512 bytes of entity is a map from HTML entity names to their values. The semicolon matters: 11 // http://www.whatwg.org/specs/web-apps/current-work/multipage/named-character-references.html 12 // lists both "amp" compatibility with old numeric entities that 19 // assumed Windows-1252 encoding. 20 // http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#consume-a-character-reference 21