vitepress serve tries to load an md.undefined.js file

[valgeirb]

Describe the bug

First, thank you for your work on this package.

vitepress dev works fine, only when you build the docs and serve them with vitepress serve does this fail.

It tries to load a non-existing file:

app.0e8df899.js:90 GET http://localhost:5000/assets/guide_what-is-vue-popper.md.undefined.js net::ERR_ABORTED 404 (Not Found)

Reproduction

Here's my repo.

1. Clone it
2. npm i
3. Change base in docs/.vitepress/config.js to base: "/"
4. npm run build:docs
5. npm run serve:docs
6. See the error in the dev tools

Expected behavior

I don't understand why vitepress tries to serve this .undefined file.

System Info

System:
    OS: Linux 5.11 Zorin OS 16
    CPU: (8) x64 Intel(R) Core(TM) i5-8259U CPU @ 2.30GHz
    Memory: 4.16 GB / 31.23 GB
    Container: Yes
    Shell: 5.8 - /usr/bin/zsh
  Binaries:
    Node: 14.17.5 - ~/.nvm/versions/node/v14.17.5/bin/node
    npm: 6.14.14 - ~/.nvm/versions/node/v14.17.5/bin/npm
  Browsers:
    Chrome: 94.0.4606.81
    Firefox: 93.0

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.

[Greasen]

我也遇到同样的情况。

[kiaking]

Does this still happen?

[socheatsok78]

Hi, I can confirm that this issue still happening.

I don't want to create another issue so I'll just comment here.

[brc-dd]

Replacing

vitepress/src/client/app/utils.ts

Line 38 in 9004a80

pagePath = pagePath.slice(base.length).replace(/\//g, '_') + '.md'

by

vitepress/src/client/app/utils.ts

Lines 38 to 39 in 89cc718

	pagePath =
	(pagePath.slice(base.length).replace(/\//g, '_') || 'index') + '.md'

should fix this.