Manual:$wgAllowMicrodataAttributes/zh

细节
Allows to enable HTML5 microdata attributes for use in wikitext. For this to work must be set to "true", which is the default as well as unchangeable since MW 1.22+. Starting with MW 1.27+ HTML5 microdata attributes will be allowed by default.

参见

 * HTML Tags extension to add "Rich snippets" for breadcrumbs
 * HTML Tags extension to add "Rich snippets" for breadcrumbs