xml:lang attribute in html tag
This test failed because it relies on :lang for results, but :lang is not supported by this browser.
The browser will NOT recognize a language declared in an xml:lang attribute on the html tag.
This test uses :lang to detect whether the language has been set. If :lang is not supported, a message will appear and the test will fail.
Spec text: «The attribute in no namespace with no prefix and with the literal localname "xml:lang" has no effect on language processing.»