Vue template src is not working in vite build&serve

[lzdyes]

Describe the bug

eidt sample project

<template src="./app.html"></template>

// app.html
<img alt="Vue logo" src="./assets/logo.png" />
<HelloWorld msg="Hello Vue 3 + TypeScript + Vite" />

is working in vite dev, if run bulid and serve, it's a blank page.

Reproduction

yarn create vite use vue-ts

System Info

System:
    OS: Windows 10 10.0.19042
    CPU: (8) x64 Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz   
    Memory: 21.86 GB / 31.93 GB
  Binaries:
    Node: 14.17.5 - C:\Program Files\nodejs\node.EXE       
    Yarn: 1.22.5 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
    npm: 6.14.14 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Spartan (44.19041.1023.0), Chromium (94.0.992.38)
    Internet Explorer: 11.0.19041.1202
  npmPackages:
    @vitejs/plugin-vue: ^1.9.3 => 1.9.3 
    vite: ^2.6.4 => 2.6.7

Used Package Manager

yarn

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to https://github.com/vuejs/vue-next instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.