[vite] Update the Vite ping route in sw.ts when upgrading to Vite 3.0

[vursen]

The ping route has changed in Vite 3.0 (vitejs/vite#6819), so we'll need to update it also in sw.ts once we get to upgrading. Otherwise, the URL can end up accidentally cached.

Before: /VAADIN/__vite_ping. After: /VAADIN/.

[Artur-]

Do you mean it now pings the base URL, i.e. /VAADIN/ and we should. make sure that this very path is never cached?

[Artur-]

i.e. in sw.ts we have

  registerRoute(
    ({ url }) => url.pathname.startsWith(`${scopePath}VAADIN/__vite_ping`),
    networkOnly
  );

  registerRoute(
    ({ url }) => url.pathname.startsWith(`${scopePath}VAADIN/`),
    networkFirst
  );

So we should delete the first and make the second networkOnly?

[vursen]

So we should delete the first and make the second networkOnly?

Not exactly. I guess we should add a new networkOnly route that would only handle the base path and then we can remove the __vite_ping route.

[Artur-]

Ah, sorry the second one was startsWith so we should just change the first one to be an exact match