Enables localization of ASP.NET model meta-data based on data annotation attributes. Display names or validation results declared with data annotation attributes can contain keys of Kentico resource strings that will be resolved automatically using Kentico localization API. The localization uses a custom model metadata provider based on data annotations and is therefore not compatible with other providers or their customizations.

When request is sent from administration domain of the site, adds header Access-Control-Allow-Origin into response to enable cross origin resource sharing (CORS) with the administration.