wp-includes/rest-api/endpoints/class-wp-rest-site-health-controller.php:335Loads the admin textdomain for Site Health tests.
protected function load_admin_textdomain() { // Accounts for inner REST API requests in the admin. if ( ! is_admin() ) { $locale = determine_locale(); load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo", $locale ); } }Introduced in 5.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api/endpoints/class-wp-rest-site-health-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.