WP Plugin Stop htaccess rewrites

wpengine-stop-htaccess-rewrites.php

<?php
/**
 * Stop htaccess rewrites
 *
 * @package     wpengine-stop-htaccess-rewrites
 * @author      wpengine
 * @license     Proprietary
 *
 * @wordpress-muplugin
 * Plugin Name: Stop htaccess rewrites
 * Plugin URI:  https://wpengine.com
 * Description: Stops Rewrite Flush from changing the htaccess file on proxy passed sites.
 * Version:     0.1.0
 * Author:      wpengine
 * Author URI:  https://wpengine.com
 * Text Domain: wpengine-stop-htaccess-rewrites
 * License:     Proprietary
 */

namespace WPEngine\StopHardRewrite;

add_action(
	'plugins_loaded',
	function() {
		// Get the PATH from the site url.
		$path = wp_parse_url( get_option( 'siteurl' ), PHP_URL_PATH );

		// If we have a path, then this is a proxy pass. Stop hard rewrites.
		if ( ! empty( $path ) && '/' !== $path ) {
			add_filter( 'flush_rewrite_rules_hard', '__return_false' );
		}
	}
);