Migration from v5 to v8 - Get route params on open Panel

Questions
1

This works in v5, but not in V8 (page is not defined)
From route:

      {
      path: '/endreBaat/:baatID/',
      panel: {
          componentUrl: './pages/endreBaat.html',
      },

From endreBaat.html:

  export default (props, { $f7, $on}) => {
      $on('panelInit', () => {
          baatID = page.params.baatID;
          console.log(baatID);
      });
    return $render;
  };