From 62670e6dda3d7b92f3a75daa52944c96158e5b69 Mon Sep 17 00:00:00 2001
From: Chris Hallberg <crhallberg@gmail.com>
Date: Wed, 7 Feb 2018 12:47:25 -0500
Subject: [PATCH] Add allow-modals to iframe, allowing alert and prompt.
 Discussed in Issue #507. (#518)

---
 client/modules/IDE/components/PreviewFrame.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/client/modules/IDE/components/PreviewFrame.jsx b/client/modules/IDE/components/PreviewFrame.jsx
index bf3313b4..58a504d6 100644
--- a/client/modules/IDE/components/PreviewFrame.jsx
+++ b/client/modules/IDE/components/PreviewFrame.jsx
@@ -407,7 +407,7 @@ class PreviewFrame extends React.Component {
         frameBorder="0"
         title="sketch output"
         ref={(element) => { this.iframeElement = element; }}
-        sandbox="allow-scripts allow-pointer-lock allow-same-origin allow-popups allow-forms"
+        sandbox="allow-scripts allow-pointer-lock allow-same-origin allow-popups allow-forms allow-modals"
       />
     );
   }