Scripts added in index.html are parsed wrong in dev mode (Flow/Hilla)

My index.html contains some imports like <script defer src="xyz.js"></script>. The xyz.js is a static file resource and is served correctly.
But when I added a react view in frontend/views the delivered index.html will be changed src="/VAADIN/xyz.js". The file will not be found.
This happens only in dev mode. When removing the views completely, it works again.

Why does it add this prefix in Flow-Hilla hybrid mode? Can I prevent it? Thanks for your help.

Using Vaadin 24.5.3