diff --git a/wp-includes/class-wp-oembed-controller.php b/wp-includes/class-wp-oembed-controller.php
index 22c062be9f..a613d0616d 100644
--- a/wp-includes/class-wp-oembed-controller.php
+++ b/wp-includes/class-wp-oembed-controller.php
@@ -32,7 +32,7 @@ final class WP_oEmbed_Controller {
 
 		if ( false === $wp_query->get( 'url', false ) ) {
 			status_header( 400 );
-			echo 'URL parameter missing';
+			return get_status_header_desc( 400 );
 			exit;
 		}
 
@@ -88,7 +88,7 @@ final class WP_oEmbed_Controller {
 
 		if ( false === $data ) {
 			status_header( 404 );
-			return __( 'Invalid URL.' );
+			return get_status_header_desc( 404 );
 		}
 
 		if ( 'json' === $request['format'] ) {
@@ -117,7 +117,7 @@ final class WP_oEmbed_Controller {
 		// Bail if the result couldn't be JSON encoded.
 		if ( ! $result || ! is_array( $data ) || empty( $data ) ) {
 			status_header( 501 );
-			return 'Not implemented';
+			return get_status_header_desc( 501 );
 		}
 
 		if ( ! headers_sent() ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index f404e382bd..f69b7cb4dd 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-beta1-35407';
+$wp_version = '4.4-beta1-35408';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.