message: fix sandbox flags
diff: @@ -152,7 +152,7 @@ export default class ModalWidgetDialog extends React.PureComponent<IProps, IStat
  <div>
  <iframe
  ref={this.appFrame}
  - sandbox="allow-forms allow-scripts"
  + sandbox="allow-forms allow-scripts allow-same-origin"
  src={widgetUrl}
  onLoad={this.onLoad}
  />
  