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filter is not described

auth_redirect_scheme filter-hook . WP 2.9.0

Filters the authentication redirect scheme.

Usage

add_filter( 'auth_redirect_scheme', 'filter_function_name_1181' );
function filter_function_name_1181( $scheme ){
	// filter...

	return $scheme;
}
$scheme(string)
Authentication redirect scheme.
Default: ''

Where the hook is called

auth_redirect()
wp-includes/pluggable.php 1033
$scheme = apply_filters( 'auth_redirect_scheme', '' );

Where the hook is used (in WP core)

Does not used.