Set Background Image fetchpriority=high

add_action( ‘template_redirect’, ‘rd_preload_marked_theme_background_images’, 1 ); function rd_preload_marked_theme_background_images() { if ( is_admin() || wp_doing_ajax() || wp_is_json_request() ) { return; } if ( defined( ‘REST_REQUEST’ ) && REST_REQUEST ) { return; } if ( is_feed() || is_trackback() || is_robots() || is_embed() )…Continue reading

Simulate WP Error Page

add_action(‘template_redirect’, function () { if (isset($_GET[‘rd_test_wp_die’])) { if (!defined(‘DONOTCACHEPAGE’)) { define(‘DONOTCACHEPAGE’, true); } if (!defined(‘DONOTCACHEDB’)) { define(‘DONOTCACHEDB’, true); } if (!defined(‘DONOTMINIFY’)) { define(‘DONOTMINIFY’, true); } nocache_headers(); wp_die(‘This would be the default WordPress Admin Error Message.’); } });Continue reading