WP_Customize_Manager::is_cross_domain │ public │ WP 4.7.0

Determines whether the admin and the frontend are on different domains.

Method of the class: WP_Customize_Manager{}

No Hooks.

Returns

true|false. Whether cross-domain.

Usage

$WP_Customize_Manager = new WP_Customize_Manager();
$WP_Customize_Manager->is_cross_domain();

Changelog

Since 4.7.0 Introduced.

WP_Customize_Manager::is_cross_domain() code WP 7.0

wp-includes/class-wp-customize-manager.php 
public function is_cross_domain() {
	$admin_origin = wp_parse_url( admin_url() );
	$home_origin  = wp_parse_url( home_url() );
	$cross_domain = ( strtolower( $admin_origin['host'] ) !== strtolower( $home_origin['host'] ) );
	return $cross_domain;
}