_wp_get_allowed_postdata()
Returns only allowed post data fields.
WordPress 5.0.1 Hooks, Functions, Classes and Methods
wp_kses_allowed_html()
Returns an array of allowed HTML tags and attributes for a given context.
wp_kses_uri_attributes()
Returns an array of HTML attribute names whose value contains a URL.
wp_sensitive_page_meta()
Display a noindex,noarchive meta tag and referrer strict-origin-when-cross-origin meta tag.
wp_kses_uri_attributes
Filters the list of attributes that are required to contain a URL.