WordPress at a glance
filter is not described

customize_refresh_nonces filter-hook . WP 4.2.0

Filters nonces for Customizer.

Usage

add_filter( 'customize_refresh_nonces', 'filter_function_name_1189', 10, 2 );
function filter_function_name_1189( $nonces, $this ){
	// filter...

	return $nonces;
}
$nonces(array)
Array of refreshed nonces for save and preview actions.
$this(WP_Customize_Manager)
WP_Customize_Manager instance.

Where the hook is called

WP_Customize_Manager::get_nonces()
customize_refresh_nonces
wp-includes/class-wp-customize-manager.php 4565
$nonces = apply_filters( 'customize_refresh_nonces', $nonces, $this );

Where the hook is used (in WP core)

wp-includes/class-wp-customize-widgets.php 120
add_filter( 'customize_refresh_nonces', array( $this, 'refresh_nonces' ) );
wp-includes/class-wp-customize-nav-menus.php 59
add_filter( 'customize_refresh_nonces', array( $this, 'filter_nonces' ) );