Scrolling during a tour is buggy if height is set to 100% on body and html

If you style your Angular app's "body" and "html" tags with "height: 100%" and then start a tour, scrolling will partially work (just as the demo "shepherd-tester" in the repo), but if you scroll up and down a bit, scrolling will suddenly stop working and you might get stuck with the tour modal out of view.

So if you have

body, html {
    height: 100%;
}

in your styles.css, and want to use Angular Shepherd without the buggy scroll behavior, you need to find another way to make your app have full width/height with regards to the browser window.

One workaround that seems to work for me so far is:

styles.css

html, body {
  min-height: 100vh;
  margin: 0;
}
body {
  display: flex;
}

app.component.css

:host {
    flex: 1;
}

Reproduce el problema en la demo shepherd-tester del repositorio usando html y body height: 100%, y luego inspecciona el comportamiento de desplazamiento del tour. El trabajo estará terminado cuando el desplazamiento repetido mantenga accesible el modal del tour en lugar de detenerse con el modal fuera de la vista, sin depender de la solución alternativa de CSS indicada.