- Enhancement: For anyone visiting the ES6 modules entrance file without ESM

support, redirect to non-modular vesion
- Build: Add comment not to edit xdomain editor directly

editor/svg-editor-es.html

@@ -15,6 +15,7 @@
     <!{else}-->
     <script src="jquery.min.js"></script>
     <!--{endif}-->
+    <script nomodule="" src="no-module-support-redirect.js"></script>
     <!-- We keep this next module external to avoid the need to
       load further scripts if not supported -->
     <script type="module" src="redirect-on-lacking-support.js"></script>