Plugin has no support for optional parameters about svelte-navigator HOT 3 OPEN

<script>
  import { Router, Route } from "svelte-navigator";
</script>
<Router>
  <Route path="/route/:requiredParam/*" let:params={params1}>
    <Route path="/optionalRoute/:optionalParam" let:params={params2}>
      <RouteComponent requiredParam={params1.requiredParam} optionalParam={params2.optionalParam}></RouteComponent>
    </Route>
    <Route path="/">
      <RouteComponent requiredParam={params1.requiredParam}></RouteComponent>
    </Route>
  </Route>
</Router>

<script>  
  export let requiredParam;
  export let optionalParam= null;
</script>