From dd8eb1480dc688eb030a0d43cc692d885ea8ffcf Mon Sep 17 00:00:00 2001
From: Weston Ruter <weston@xwp.co>
Date: Mon, 16 Jan 2017 21:19:47 -0800
Subject: [PATCH] Add post_type_exists() check in
 Edit_Post_Preview::get_preview_post_link() to prevent warning in starter
 content for CPTs

---
 php/class-edit-post-preview.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/php/class-edit-post-preview.php b/php/class-edit-post-preview.php
index 23288bc..dc955d1 100644
--- a/php/class-edit-post-preview.php
+++ b/php/class-edit-post-preview.php
@@ -104,7 +104,7 @@ public function get_previewed_post() {
 	public static function get_preview_post_link( $post ) {
 		$permalink = '';
 
-		if ( $post instanceof WP_Post ) {
+		if ( $post instanceof WP_Post && post_type_exists( $post->post_type ) ) {
 			$id_param = ( 'page' === $post->post_type ) ? 'page_id' : 'p';
 			$args = array();
 			$args['preview'] = true;