message: Use about:blank instead
diff: @@ -328,7 +328,7 @@ export default class AppTile extends React.Component {
  // the iframe at a page that is reasonably safe to use in the
  // event the iframe doesn't wink away.
  // This is relative to where the Riot instance is located.
  - this.refs.appFrame.src = '/config.json';
  + this.refs.appFrame.src = 'about:blank';
  }
  WidgetUtils.setRoomWidget(
  