Index: src/wp-admin/includes/class-wp-posts-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-posts-list-table.php	(revision 36912)
+++ src/wp-admin/includes/class-wp-posts-list-table.php	(working copy)
@@ -1225,8 +1225,7 @@
 		if ( is_post_type_viewable( $post_type_object ) ) {
 			if ( in_array( $post->post_status, array( 'pending', 'draft', 'future' ) ) ) {
 				if ( $can_edit_post ) {
-					$unpublished_link = set_url_scheme( get_permalink( $post ) );
-					$preview_link = get_preview_post_link( $post, array(), $unpublished_link );
+					$preview_link = get_preview_post_link( $post );
 					$actions['view'] = sprintf(
 						'<a href="%s" rel="permalink" aria-label="%s">%s</a>',
 						esc_url( $preview_link ),
Index: src/wp-admin/includes/post.php
===================================================================
--- src/wp-admin/includes/post.php	(revision 36912)
+++ src/wp-admin/includes/post.php	(working copy)
@@ -1294,8 +1294,7 @@
 
 	if ( current_user_can( 'read_post', $post->ID ) ) {
 		if ( 'draft' === $post->post_status ) {
-			$draft_link = set_url_scheme( get_permalink( $post->ID ) );
-			$view_link = get_preview_post_link( $post, array(), $draft_link );
+			$view_link = get_preview_post_link( $post );
 			$preview_target = " target='wp-preview-{$post->ID}'";
 		} else {
 			if ( 'publish' === $post->post_status || 'attachment' === $post->post_type ) {
Index: src/wp-includes/admin-bar.php
===================================================================
--- src/wp-includes/admin-bar.php	(revision 36912)
+++ src/wp-includes/admin-bar.php	(working copy)
@@ -558,8 +558,7 @@
 			&& ( $post_type_object->show_in_admin_bar ) )
 		{
 			if ( 'draft' == $post->post_status ) {
-				$draft_link = set_url_scheme( get_permalink( $post->ID ) );
-				$preview_link = get_preview_post_link( $post, array(), $draft_link );
+				$preview_link = get_preview_post_link( $post );
 				$wp_admin_bar->add_menu( array(
 					'id' => 'preview',
 					'title' => $post_type_object->labels->view_item,
Index: src/wp-includes/link-template.php
===================================================================
--- src/wp-includes/link-template.php	(revision 36912)
+++ src/wp-includes/link-template.php	(working copy)
@@ -1222,7 +1222,7 @@
 	$post_type_object = get_post_type_object( $post->post_type );
 	if ( is_post_type_viewable( $post_type_object ) ) {
 		if ( ! $preview_link ) {
-			$preview_link = get_permalink( $post );
+			$preview_link = set_url_scheme( get_permalink( $post ) );
 		}
 
 		$query_args['preview'] = 'true';