@Shelob9 if you want to enable rest requests when they would otherwise be restricted, something like the following code should work:

add_filter( 'restricted_site_access_is_restricted', function( $restricted ) {
	if ( defined( 'REST_REQUEST' ) && REST_REQUEST ) {
		return false;
	}
	return $restricted;
} );

Am I misunderstanding your use case? I don't see how your PR helps out with "allowing REST requests when access is restricted".

@Shelob9 closing this as wontfix because you can achieve the same results with an existing filter (pull/8#issuecomment-355186577) - please feel free to re-open if I have missed something!