Merge pull request #1924 from processing/feature/iframe-serial

Add serial to iframe allow list

Author: catarak

client/modules/IDE/components/PreviewFrame.jsx

@@ -24,8 +24,8 @@ function PreviewFrame({ fullView }) {
   const frameUrl = previewUrl;
   const sandboxAttributes = `allow-forms allow-modals allow-pointer-lock allow-popups 
     allow-same-origin allow-scripts allow-top-navigation-by-user-activation allow-downloads`;
-  const allow =
-    'accelerometer; autoplay; camera; encrypted-media; geolocation; gyroscope; microphone; magnetometer; midi; vr;';
+  const allow = `accelerometer; autoplay; camera; encrypted-media; geolocation;
+    gyroscope; microphone; magnetometer; midi; serial; vr;`;
   return (
     <Frame
       title="sketch preview"