Ticket #23175: 23175.patch

wp-admin/includes/file.php

@@ -87 +87 @@
                 $home_path = substr( $_SERVER['SCRIPT_FILENAME'], 0, $pos );
                 $home_path = trailingslashit( $home_path );
         } else {
-                $home_path = ABSPATH;
+                $home_path = str_replace( '\\', '/', ABSPATH );
         }
 
         return $home_path;

wp-admin/network.php

@@ -314 +314 @@
         $base              = parse_url( $slashed_home, PHP_URL_PATH );
         $document_root_fix = str_replace( '\\', '/', realpath( $_SERVER['DOCUMENT_ROOT'] ) );
         $abspath_fix       = str_replace( '\\', '/', ABSPATH );
-        $home_path         = 0 === strpos( $abspath_fix, $document_root_fix ) ? $document_root_fix . $base : str_replace( '\\', '/', get_home_path() );
+        $home_path         = 0 === strpos( $abspath_fix, $document_root_fix ) ? $document_root_fix . $base : get_home_path();
         $wp_siteurl_subdir = preg_replace( '#^' . preg_quote( $home_path, '#' ) . '#', '', $abspath_fix );
         $rewrite_base      = ! empty( $wp_siteurl_subdir ) ? ltrim( trailingslashit( $wp_siteurl_subdir ), '/' ) : '';