2.1.130 [HTML5] Section 6.6.1.2 Language preferences

V0291: The language attribute is implemented directly on the Navigator interface, not on the NavigatorLanguage interface

The specification states:

 ... Language preferences
  
     [NoInterfaceObject ...]
     interface NavigatorLanguage {
         readonly attribute DOMString? language;
         ...
     };

All document modes (All versions)

The language attribute is implemented directly on the Navigator interface, not on the NavigatorLanguage interface.