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filter is not described

wp_safe_redirect_fallback filter-hook . WP 4.3.0

Filters the redirect fallback URL for when the provided redirect is not safe (local).

Usage

add_filter( 'wp_safe_redirect_fallback', 'filter_function_name_2655', 10, 2 );
function filter_function_name_2655( $fallback_url, $status ){
	// filter...

	return $fallback_url;
}
$fallback_url(string)
The fallback URL to use by default.
$status(int)
The redirect status.

Where the hook is called

wp_safe_redirect()
wp-includes/pluggable.php 1307
$location = wp_validate_redirect( $location, apply_filters( 'wp_safe_redirect_fallback', admin_url(), $status ) );

Where the hook is used (in WP core)

Does not used.