Map a language code to its BCP-47 hreflang value. Norwegian files use the filename suffix 'no' but must be advertised as 'nb' (Bokmål) per BCP-47.
Map a language code to its BCP-47 hreflang value. Norwegian files use the filename suffix 'no' but must be advertised as 'nb' (Bokmål) per BCP-47.