This UTF-8 encoded resource is served with the wrong encoding declaration in the Content-Type HTTP header (charset=Windows-1251). That the included meta element "declares" the correct encoding does not matter; the HTTP header takes precedence.

Nevertheless, the Document Character Set for HTML 4.01 documents is still UCS, so character references can be used in CDATA attribute values to represent non-ASCII characters:

Serve (almost) the same content with the correct encoding declaration (charset=UTF-8)