When I send notification without icon it looks like this: Web push without icon
Json:
{"title":"Example notification", "options":{"body":"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent scelerisque ligula velit, in luctus sem varius eu. Maecenas efficitur sem in maximus"}}
How to get rid of an empty space?
You should always include the icon. You cannot get rid of the empty space.