HTTP header and meta element

Assertion holds if you see green below.

This test is only valid if the user agent recognises the HTTP and meta declarations, and :lang works.

Ignore this test. (:lang not supported) 

Assertion: [Exploratory test] If there is a conflict between the language declarations in the HTTP header and the Content-Language meta element, the UA will recognize the language declared in the meta element.

Notes:
Red means the HTTP declaration had precedence.

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xhtml11 as xml