From bd937195eb83dc7c55269cc6e92cb99b10823340 Mon Sep 17 00:00:00 2001
From: Connor Sheremeta <sheremet@ualberta.ca>
Date: Tue, 29 Aug 2017 13:31:18 -0600
Subject: [PATCH] MDL-54540 lti: Add allowfullscreen attribute to LTI IFrames

---
 mod/lti/view.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod/lti/view.php b/mod/lti/view.php
index cc0c255551c..2dc0487c8ea 100644
--- a/mod/lti/view.php
+++ b/mod/lti/view.php
@@ -122,7 +122,7 @@ if ( $launchcontainer == LTI_LAUNCH_CONTAINER_WINDOW ) {
     echo html_writer::end_tag('p');
 } else {
     // Request the launch content with an iframe tag.
-    echo '<iframe id="contentframe" height="600px" width="100%" src="launch.php?id='.$cm->id.'"></iframe>';
+    echo '<iframe id="contentframe" height="600px" width="100%" src="launch.php?id='.$cm->id.'" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>';
 
     // Output script to make the iframe tag be as large as possible.
     $resize = '