## Fix login loop. * When WordPress is installed in a subdirectory, wp-admin/ links don't work correctly. We fix this with an nginx rewrite. * But... it appends reauth=1 to the url which forces a reauthentication when submitted... and you have to log in again!

gistfile1.txt

/**
 * Fix login loop.
 *
 * When WordPress is installed in a subdirectory, wp-admin/ links don't work correctly. We fix this with an nginx rewrite.
 * But... it appends reauth=1 to the url which forces a reauthentication when submitted...  and you have to log in again!
 */
add_filter( 'login_url', function( $url ) {

	if ( '/wp-admin/' === add_query_arg( array() ) ) {
		$url = remove_query_arg( 'reauth', $url );
		$url = add_query_arg( 'redirect_to', get_admin_url(), $url );
	}
	
	return $url;

});