Ticket #22705: 22705.diff

wp-includes/ms-default-constants.php

@@ -56 +56 @@
         /**
          * @since 1.5.0
          */
-        if ( !defined( 'SITECOOKIEPATH' ) )
-                define( 'SITECOOKIEPATH', $current_site->path );
+        if ( !defined( 'SITECOOKIEPATH' ) ) {
+                if ( !is_subdomain_install() )
+                        define( 'SITECOOKIEPATH', $current_site->path );
+                else
+                        define( 'SITECOOKIEPATH', trailingslashit( parse_url( get_option( 'siteurl' ), PHP_URL_PATH ) ) );
+        }
 
         /**
          * @since 2.6.0