In Flutter web apps, there is a reference to a script called flutter.js
but it is not outputed by the build. Is it normal? It actually gives a 404 error in one of my apps :(.
index.html
<script>
// The value below is injected by flutter build, do not touch.
var serviceWorkerVersion = null;
</script>
<!-- This script adds the flutter initialization JS code -->
<script src="flutter.js" defer></script>