add_filter( 'woocommerce_display_item_meta', function( $html, $item, $args ) {
    global $wp;

    if( isset( $wp->query_vars['wcfm-orders-details'] ) && !empty( $wp->query_vars['wcfm-orders-details'] ) ) {
        $strings = array();
        $html    = '';
        $args    = wp_parse_args(
            $args,
            array(
                'before'       => '<ul class="wc-item-meta"><li>',
                'after'        => '</li></ul>',
                'separator'    => '</li><li>',
                'echo'         => true,
                'autop'        => false,
                'label_before' => '<strong class="wc-item-meta-label">',
                'label_after'  => ':</strong> ',
            )
        );

        foreach ( $item->get_all_formatted_meta_data() as $meta_id => $meta ) {
            if( isset( $meta->key ) && in_array( $meta->key, array( 'wcfm_tracking_code', 'wcfm_tracking_url' ) ) ) {
                continue;
            }

            $value     = $args['autop'] ? wp_kses_post( $meta->display_value ) : wp_kses_post( make_clickable( trim( $meta->display_value ) ) );
            $strings[] = $args['label_before'] . wp_kses_post( $meta->display_key ) . $args['label_after'] . $value;
        }

        if ( $strings ) {
            $html = $args['before'] . implode( $args['separator'], $strings ) . $args['after'];
        }
    }

    return $html;
}, 10, 3 );