diff -r 346c88efed21 -r 5e2f62d02dcd wp/wp-includes/class-wp-http-ixr-client.php
--- a/wp/wp-includes/class-wp-http-ixr-client.php	Mon Jun 08 16:11:51 2015 +0000
+++ b/wp/wp-includes/class-wp-http-ixr-client.php	Tue Jun 09 03:35:32 2015 +0200
@@ -7,8 +7,19 @@
  *
  */
 class WP_HTTP_IXR_Client extends IXR_Client {
+	public $scheme;
+	/**
+	 * @var IXR_Error
+	 */
+	public $error;
 
-	function __construct($server, $path = false, $port = false, $timeout = 15) {
+	/**
+	 * @param string $server
+	 * @param string|bool $path
+	 * @param int|bool $port
+	 * @param int $timeout
+	 */
+	public function __construct($server, $path = false, $port = false, $timeout = 15) {
 		if ( ! $path ) {
 			// Assume we have been given a URL instead
 			$bits = parse_url($server);
@@ -18,8 +29,13 @@
 			$this->path = !empty($bits['path']) ? $bits['path'] : '/';
 
 			// Make absolutely sure we have a path
-			if ( ! $this->path )
+			if ( ! $this->path ) {
 				$this->path = '/';
+			}
+
+			if ( ! empty( $bits['query'] ) ) {
+				$this->path .= '?' . $bits['query'];
+			}
 		} else {
 			$this->scheme = 'http';
 			$this->server = $server;
@@ -30,7 +46,7 @@
 		$this->timeout = $timeout;
 	}
 
-	function query() {
+	public function query() {
 		$args = func_get_args();
 		$method = array_shift($args);
 		$request = new IXR_Request($method, $args);