smush-mu-fix-problem-serving-cdn-with-beaver.php

<?php
/**
 * Plugin Name: [Smush] - Beaver fix image not serving via CDN.
 * Plugin URI: https://wpmudev.com/
 * Description: Beaver Builder not serving images via CDN.
 * Author: Abdoljabbar Bakhshande
 * Author URI: https://wpmudev.com/
 * Task: SLS-3724
 * License: GPLv2 or later
 *
 * @package WordPress
 */

if ( ! defined( 'ABSPATH' ) || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
	return;
}

add_action(
	'after_setup_theme',
	function() {
		if ( class_exists( 'WP_Smush' ) && WP_Smush::is_pro() && WP_Smush::get_instance()->core()->mod->cdn->is_active() ) {

			add_filter( 'fl_builder_render_js', 'smush_mu_fix_beaver_builder_cdn' );
			add_filter( 'fl_builder_render_css', 'smush_mu_fix_beaver_builder_cdn' );
		}
	}
);

function smush_mu_fix_beaver_builder_cdn( $source ) {

	$source = preg_replace_callback(
		'#https?://[^"].+.(?:jpe?g|png|gif|webp)#',
		function( $match ) {
			if ( ! empty( $match[0] ) ) {
				$cdn = WP_Smush::get_instance()->core()->mod->cdn;
				if ( $cdn->is_supported_path( $match[0] ) ) {
					$match[0] = $cdn->generate_cdn_url( $match[0] );
				}
			}
			return $match[0];
		},
		$source
	);
	return $source;
}