Adjustments to WordPress

A collection of useful functions, actions, and other ways to alter WordPress.

Change default slug for Posts

The default slug is based on the initial Title. If the title is long htis can be very annoying as I personally like short paths and without basic repeating words like the, and, I, etc. This also prevents a slug from being longer than 6 words. You are always free to edit afterwards.

Source: https://gist.github.com/donohoe/4766b8a20cc6573de3dd3cb59df9fc32

Disable External Embedding

Tell modern browsers to disallow embedding of our site from other domains.

More information: X-Frame-Options (developer.mozilla.org)

function disable_external_embedding( $headers ) {
	$headers[ 'X-Frame-Options' ] = 'SAMEORIGIN';
	return $headers;
}
add_filter( 'wp_headers', 'disable_external_embedding' );

Disable FLoC

Prevent the (Chrome) browser from performing profiling for third-party trackers using Federated Learning of Cohorts.

function disable_floc( $headers ) {
	$headers[ 'Permissions-Policy' ] = 'browsing-topics=()';
	return $headers;
}
add_filter( 'wp_headers', 'disable_floc' );

Remove Comments from WP Admin menu

After you disable comments it still shows up. Lets address that.

function row_remove_menu_items() {
	remove_menu_page( 'edit-comments.php' );
	remove_menu_page( 'edit.php?post_type=sidebar' );
}
add_action( 'admin_menu', 'row_remove_menu_items' );

Remove jQuery and wp-embed.js

jQuery had its time and place but it is time to move on. You don’t really need a framework for most projects.

function deregister_unused_scripts_and_styles(){

	/* Required by plugin Query Monitor so leave alone if active */
	if (!class_exists('QM_Plugin')) {
		wp_deregister_style( 'dashicons' ); 
		wp_deregister_script( 'jquery' );
	}

	wp_deregister_script( 'wp-embed' );
	wp_dequeue_style( 'wp-block-library' );
	wp_dequeue_style( 'wpcom-notes-admin-bar' );
	wp_dequeue_style( 'noticons');
	
}
add_action( 'wp_enqueue_scripts', 'deregister_unused_scripts_and_styles' );

Remove what you do not really need…

Across different versions its not clear if these all still work. I’ve found some inconsistencies in their effect.

/*
	Remove JetPack CSS
	Link: https://css-tricks.com/snippets/wordpress/removing-jetpack-css/
*/
add_filter( 'jetpack_sharing_counts',       '__return_false', 99 );
add_filter( 'jetpack_implode_frontend_css', '__return_false', 99 );

/*
	Remove Emojis
	https://crunchify.com/not-using-emoji-on-your-wordpress-blog-stop-loading-wp-emoji-release-min-js-and-css-file/
*/
remove_action( 'wp_head',         'print_emoji_detection_script', 7 );
remove_action( 'wp_print_styles', 'print_emoji_styles' );

remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
remove_action( 'admin_print_styles',  'print_emoji_styles' );

/* 
	Remove pre-fetch META tags
*/
remove_action( 'wp_head', 'wp_resource_hints', 2 );

/*
	Remove default icons
*/
remove_action( 'wp_head', 'wp_site_icon', 99 );

/*
	Clean the HEAD
*/
remove_action( 'wp_head', 'wp_resource_hints', 2 ); /* Remove pre-fetch META tags */
remove_action( 'wp_head', 'rsd_link' );
remove_action( 'wp_head', 'wlwmanifest_link' );
remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head');
remove_action( 'wp_head', 'wp_generator' );
remove_action( 'wp_head', 'feed_links', 2 );

remove_action( 'wp_head', 'wp_shortlink_wp_head' );
remove_action( 'template_redirect', 'wp_shortlink_header', 11);
remove_action( 'template_redirect', 'rest_output_link_header', 11, 0);

remove_action( 'rss2_head',  'the_generator' );
remove_action( 'rss_head',   'the_generator' );
remove_action( 'rdf_header', 'the_generator' );
remove_action( 'atom_head',  'the_generator' );
remove_action( 'opml_head',  'the_generator' );
remove_action( 'app_head',   'the_generator' );
remove_action( 'comments_atom_head', 'the_generator' );
remove_action( 'commentsrss2_head',  'the_generator' );