From 90370727804b01f281845cf726e2b6b5387971b1 Mon Sep 17 00:00:00 2001
From: Dominik Schilling <ocean90@git.wordpress.org>
Date: Tue, 5 Jul 2016 16:15:05 +0000
Subject: [PATCH] Embeds: After [37745], check if a featured image exists
 before attaching an event listener.

Props swissspidy.
Fixes #35657.

git-svn-id: https://develop.svn.wordpress.org/trunk@37977 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/js/wp-embed-template.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/wp-includes/js/wp-embed-template.js b/src/wp-includes/js/wp-embed-template.js
index 2960991cee..16f67080ea 100644
--- a/src/wp-includes/js/wp-embed-template.js
+++ b/src/wp-includes/js/wp-embed-template.js
@@ -26,6 +26,7 @@
 			share_dialog_close = document.querySelector( '.wp-embed-share-dialog-close' ),
 			share_input = document.querySelectorAll( '.wp-embed-share-input' ),
 			share_dialog_tabs = document.querySelectorAll( '.wp-embed-share-tab-button button' ),
+			featured_image = document.querySelector( '.wp-embed-featured-image img' ),
 			i;
 
 		if ( share_input ) {
@@ -139,9 +140,11 @@
 		sendEmbedMessage( 'height', Math.ceil( document.body.getBoundingClientRect().height ) );
 
 		// Send the document's height again after the featured image has been loaded.
-		document.querySelector( '.wp-embed-featured-image img' ).addEventListener( 'load', function() {
-			sendEmbedMessage( 'height', Math.ceil( document.body.getBoundingClientRect().height ) );
-		} );
+		if ( featured_image ) {
+			featured_image.addEventListener( 'load', function() {
+				sendEmbedMessage( 'height', Math.ceil( document.body.getBoundingClientRect().height ) );
+			} );
+		}
 
 		/**
 		 * Detect clicks to external (_top) links.