A page with content in British English. The xml:lang attribute on the html element contains contains the language and subcode for American English ("en-US"); the lang attribute the value ("en-UK"), which is not correct for British English ("en-GB"). Correct language codes and contradictory (and incorrect) subcodes for content in British English Christophe.Strobbe@esat.kuleuven.be en Copyright BenToWeb 2005-2007 2005-09-02 accepted QA Specifying the language of content: the lang attribute

This test case is intended to fail because the primary natural language is correctly defined but the language version information is contradictory and one of the language subcodes does not exist. Subcodes to identify versions of languages are not required but should be correct when they are used. However, tests may show that contradictory and even incorrect information on language versions is not confusing.

This test case can be evaluated automatically when using a test tool with reliable automatic language recognition for British and American English, support for lang and xml:lang attributes and language tags.

 automatic

The browser cannot find the primary language of the document.

The lang and xml:lang attributes in the html element contradict each other, and lang="en-UK" does not contain a valid language code.

(In Mozilla 1.7.3, the lang attribute takes precedence over the xml:lang attribute, so the language is incorrectly identifed as American English.)

This test case maps to technique H57: Using the lang attribute of the html element (http://www.w3.org/TR/2006/WD-WCAG20-TECHS-20060427/Overview.html#H57).

Note that when both lang and xml:lang are specified, the value of xml:lang takes precedence: see "The lang and xml:lang Attributes" in the XHTML specification (http://www.w3.org/TR/xhtml1/#C_7).

The browser cannot find the primary language of the document.

The lang and xml:lang attributes in the html element contradict each other, and lang="en-UK" does not contain a valid language code.

(In Mozilla 1.7.3, the lang attribute takes precedence over the xml:lang attribute, so the language is incorrectly identifed as American English.)