From a4a343c84f819bee7c4326e29cad5f3f2c82220f Mon Sep 17 00:00:00 2001
From: Bernhard Posselt <dev@bernhard-posselt.com>
Date: Sun, 20 Sep 2015 12:59:53 +0200
Subject: fix #857

---
 appinfo/application.php | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'appinfo/application.php')

diff --git a/appinfo/application.php b/appinfo/application.php
index 22783ef87..145422c56 100644
--- a/appinfo/application.php
+++ b/appinfo/application.php
@@ -118,6 +118,8 @@ class Application extends App {
                 '%^https://(?:www\.)?(' .
                 'youtube(?:-nocookie)?.com/embed/|' .
                 'player.vimeo.com/video/)%'); //allow YouTube and Vimeo
+            $def = $config->getHTMLDefinition(true);
+            $def->addAttribute('iframe', 'allowfullscreen', 'Bool');
             return new HTMLPurifier($config);
         });
 
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