Comment from the i18n review of:
Location in reviewed document:
The term 'primary' is used here in a different way than currently used in i18n documents. We use 'primary language' to mean the intended audience of the document - as specified in the HTTP header or the meta statment. Our equivalent for your term 'primary language' (based on the advice given in your techniques) would be 'default text-processing language'. This is what is expressed via the language attribute(s) on the html element. (Note that we are currently considering options for replacing our use of the term 'primary language' with something less ambiguous andmore accurate.)
For a summary of our current usage see
i18n WG needs to discuss this section with WCAG WG to understand more clearly what the intent is with regard to 'primary' vs.'text-processing' language, and to help formulate clearer guidelines.
We have revised our terminology to "default human language". We have changed the use of this term in both the guidelines and techniques.