Portal

It is sometimes useful to be able to render some content outside the boundaries of a component. To do that, Owl provides a special directive: t-portal:

class SomeComponent extends Component {
  static template = xml`
      <div>this is inside the component</div>
      <div t-portal="'body'">and this is outside</div>
    `;
}

The t-portal directive takes a valid css selector as argument. The content of the portalled template will be mounted at the corresponding location. Note that Owl need to insert an empty text node at the location of the portalled content.