From 2beff661953b2262becde58e82887b7ead98b9f9 Mon Sep 17 00:00:00 2001
From: Frode Petterson <frode.andre.petterson@gmail.com>
Date: Tue, 16 Jun 2015 14:52:22 +0200
Subject: [PATCH] Do not try to validate empty params.

---
 h5p.classes.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/h5p.classes.php b/h5p.classes.php
index abebd87..5cb2f07 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -1766,6 +1766,9 @@ class H5PCore {
       'library' => H5PCore::libraryToString($content['library']),
       'params' => json_decode($content['params'])
     );
+    if (!$params->params) {
+      return NULL;
+    }
     $validator->validateLibrary($params, (object) array('options' => array($params->library)));
 
     $params = json_encode($params->params);