dynamic component import not imported in build

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Describe the bug

When i import dynamically a component, everything work on dev, but the component doesn’t exist on build.

I import component with this function

const importPage = path => () => import(`./pages/${path}.vue`)

When i build, the CSS is not created. (because the css is only in this page)

But when i manually import the component import Home from '/~/pages/home/Home.vue' The CSS is here.

System Info

• required vite version: v1.0.0-rc.3
• required Operating System: Linux
• required Node version: v12.11.1
• Optional:
  • npm/yarn version: 1.12.3
  • Installed vue version (from yarn.lock or package-lock.json) 3.0.0-rc.4
  • Installed @vue/compiler-sfc version 3.0.0-rc.4

Logs (Optional if provided reproduction)

Without import Home from '/~/pages/home/Home.vue'

With import Home from '/~/pages/home/Home.vue'

[underfin]

This is expected behavior.For the css of dynamic module will be packaged into js.

[simultsop]

This works with vue-cli (webpack) but not in vite, you could also iterate an array of filenames and require each of them before build on vue-cli. It was very helpful for code splitting.