From 7651b6e2cd982f54c8a2d940ccf7582b53e08831 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Wed, 13 Dec 2017 20:07:10 +0300
Subject: [PATCH] sanitize: disable referrer via referrerpolicy for img
 elements

---
 include/functions.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/functions.php b/include/functions.php
index e1e63c2a3..60aebe0da 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -1585,6 +1585,7 @@
 			}
 
 			if ($entry->nodeName == 'img') {
+				$entry->setAttribute('referrerpolicy', 'no-referrer');
 
 				if ($entry->hasAttribute('src')) {
 					$is_https_url = parse_url($entry->getAttribute('src'), PHP_URL_SCHEME) === 'https';