ログインしていない時は、SPAに強制リダイレクト

redirect_to_spa.php

add_action( 'init', 'redirect_to_spa' );
function redirect_to_spa() {
	if ( ! is_user_logged_in() ) {
		$uri = $_SERVER["REQUEST_URI"];
		if ( ! preg_match( '/^\/wp-login.php/', $uri ) && ! preg_match( '/^\/wp-admin/', $uri ) && ! preg_match( '/^\/wp-json/', $uri ) && ! preg_match( '/^\/feed/', $uri ) ) {
			$url = 'https://wp-kyoto.net' . $uri;
			 wp_redirect( $url, 301 );
			exit();
		}
	}
}