Does pre-bundling support ESM packages with Vue SFCs?

[Maniload]

Hey 👋

We have recently moved to using Vite as our tooling and we noticed a rather long delay when loading a page through the dev server. It seems like the dependency pre-bundling doesn't work for one of our modules. The module in question is a pure ESM package which includes Vue SFCs. If we now import one of these components, every file gets downloaded by the browser instead of being pre-bundled.

Even worse if one of these components imports from something like lodash-es, everything from there gets downloaded as well, which leads to the long delay when loading a page.

Is there a way to get this to work or is this just not supported on Vite's end?