Cloning on a password protected site Documentation

If you have HTTP basic auth enabled for your site (where your browser prompts you for a username and password to access it), the Cloner won’t be able to successfully run its background processes out of the box. You’ll need add the following code to a new file in your plugins directory (the filename doesn’t matter), and then enable the NS Cloner Basic Auth plugin that it will create:

<?php
/**
 * Plugin Name: NS Cloner Basic Auth
 * Description: Enable the NS Cloner to work for an HTTP basic auth protected site.
 * Author: Never Settle
 */

$username = 'YOUR USERNAME';
$password = 'YOUR PASSWORD';

add_filter(
   'http_request_args',
   function( $request ) {
      $request['headers']['Authorization'] = 'Basic ' . base64_encode( "$username:$password" );
      return $request;
   }
);