kollapsminoriteten/wp-content/plugins/jetpack/modules/theme-tools/js/suggest.js

/* global ajaxurl:true */
jQuery( function ( $ ) {
	$( '#customize-control-featured-content-tag-name input' ).suggest(
		ajaxurl + '?action=ajax-tag-search&tax=post_tag',
		{ delay: 500, minchars: 2 }
	);
} );