Fix language selection in sandboxed iframes

www/file/inner.html

@@ -2,7 +2,7 @@
 <html class="cp-app-noscroll">
 <head>
     <meta content="text/html; charset=utf-8" http-equiv="content-type"/>
-    <script async data-bootload="/file/inner.js" data-main="/common/sframe-boot.js?ver=1.4" src="/bower_components/requirejs/require.js?ver=2.3.5"></script>
+    <script async data-bootload="/file/inner.js" data-main="/common/sframe-boot.js?ver=1.5" src="/bower_components/requirejs/require.js?ver=2.3.5"></script>
     <style>
         .loading-hidden { display: none; }
         #editor1 { display: none; }