Index post content built with the Elementor Builder

searchwp-customizations.php

<?php

// Index post content built with the Elementor Builder
add_filter( 'searchwp\source\post\attributes\content', function( $content, $args ) {

	if ( class_exists('\Elementor\Plugin' ) ) {
		// We don't want CSS code on the post content while indexing.
		add_filter( 'elementor/frontend/builder_content/before_print_css', '__return_false' );

		$elementor = new \Elementor\Frontend();
		$content = $elementor->get_builder_content_for_display( $args['post']->ID );
		
		// Remove the filter once we have grabbed the content.
		remove_filter( 'elementor/frontend/builder_content/before_print_css', '__return_false' );
	}

	return $content;
}, 20, 2 );