diff --git a/wp-content/themes/twentyseventeen/template-parts/page/content-front-page.php b/wp-content/themes/twentyseventeen/template-parts/page/content-front-page.php
index 38fa0f77e9..84a0d7e448 100644
--- a/wp-content/themes/twentyseventeen/template-parts/page/content-front-page.php
+++ b/wp-content/themes/twentyseventeen/template-parts/page/content-front-page.php
@@ -14,12 +14,8 @@
 	<?php if ( has_post_thumbnail() ) :
 		$thumbnail = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'twentyseventeen-featured-image' );
 
-		$post_thumbnail_id = get_post_thumbnail_id( $post->ID );
-
-		$thumbnail_attributes = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'twentyseventeen-featured-image' );
-
 		// Calculate aspect ratio: h / w * 100%.
-		$ratio = $thumbnail_attributes[2] / $thumbnail_attributes[1] * 100;
+		$ratio = $thumbnail[2] / $thumbnail[1] * 100;
 		?>
 
 		<div class="panel-image" style="background-image: url(<?php echo esc_url( $thumbnail[0] ); ?>);">
diff --git a/wp-includes/version.php b/wp-includes/version.php
index ccb74ca0e4..ee3c57c3c3 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-alpha-40903';
+$wp_version = '4.9-alpha-40904';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.