Yoast SEO Genesis https://wp.me/p1lTu0-ith

markup.php

add_filter( 'genesis_attr_breadcrumb', 'genesis_attributes_breadcrumb' );
/**
 * Add attributes for breadcrumbs wrapper.
 *
 * @since 2.2.0
 *
 * @param array $attributes Existing attributes for breadcrumbs wrapper element.
 * @return array Amended attributes for breadcrumbs wrapper element.
 */
function genesis_attributes_breadcrumb( $attributes ) {

	// Homepage breadcrumb content contains no links, so no schema.org attributes are needed.
	if ( is_home() ) {
		return $attributes;
	}

	// Omit attributes if generic breadcrumb functions are in use.
	if ( function_exists( 'breadcrumbs' ) || function_exists( 'crumbs' ) ) {
		return $attributes;
	}

	// Breadcrumb NavXT plugin needs RDFa attributes on the breadcrumb wrapper.
	if ( function_exists( 'bcn_display' ) ) {
		$attributes['typeof'] = 'BreadcrumbList';
		$attributes['vocab']  = 'https://schema.org/';
		return $attributes;
	}

	// Yoast SEO uses JSON-LD and Yoast Breadcrumbs emits no schema.org markup, so no attributes needed.
	$yoast_seo_breadcrumbs_enabled    = class_exists( 'WPSEO_Breadcrumbs' ) && genesis_get_option( 'breadcrumbs-enable', 'wpseo_titles' );
	$yoast_breadcrumbs_plugin_enabled = function_exists( 'yoast_breadcrumb' ) && ! class_exists( 'WPSEO_Breadcrumbs' );

	if ( $yoast_seo_breadcrumbs_enabled || $yoast_breadcrumbs_plugin_enabled ) {
		return $attributes;
	}

	// Genesis breadcrumbs require microdata on the wrapper.
	$attributes['itemprop']  = 'breadcrumb';
	$attributes['itemscope'] = true;
	$attributes['itemtype']  = 'https://schema.org/BreadcrumbList';

	if ( is_singular( 'post' ) || is_archive() || is_home() || is_page_template( 'page_blog.php' ) ) {
		unset( $attributes['itemprop'] );
	}

	return $attributes;

}