public interface CSSCharsetRule extends CSSRule
CSSCharsetRuleinterface represents a @charset rule in a CSS style sheet. The value of the
encodingattribute does not affect the encoding of text data in the DOM objects; this encoding is always UTF-16. After a stylesheet is loaded, the value of the
encodingattribute is the value found in the
@charsetrule. If there was no
@charsetin the original document, then no
CSSCharsetRuleis created. The value of the
encodingattribute may also be used as a hint for the encoding used on serialization of the style sheet.
The value of the @charset rule (and therefore of the
CSSCharsetRule) may not correspond to the encoding the
document actually came in; character encoding information e.g. in an HTTP
header, has priority (see CSS document representation) but this is not
reflected in the
See also the Document Object Model (DOM) Level 2 Style Specification.
DOMException- SYNTAX_ERR: Raised if the specified encoding value has a syntax error and is unparsable.