message: [markup] Enable allow-forms
diff: @@ -30,7 +30,7 @@ function markupWidget(slice, payload) {
  <iframe id="${iframeId}"
  frameborder="0"
  height="${iframeHeight}"
  - sandbox="allow-same-origin allow-scripts allow-top-navigation allow-popups">
  + sandbox="allow-forms allow-popups allow-same-origin allow-scripts allow-top-navigation">
  </iframe>
  `);
  