v1.0.0-alpha.41 breaks base config option -- URL always rewrites to root

[stevebauman]

Describe the bug

Using the newly released v1.0.0-alpha.41 results in my browser URL being re-written to the root when previewing the Vitepress site with a configured base:

export default {
    title: 'API Docs',
    description: 'My API Docs',
    base: '/docs/',
}

Resolution

Downgrading to v1.0.0-alpha.40 resolves this issue. No redirect/URL rewrite occurs.

I suspect it's due to this new feature: #1798

Reproduction

1. Create a new Vitepress site
2. Set the base configuration option to /docs/
3. Run yarn docs:build
4. Run yarn docs:preview
5. Navigate to the served site
6. Notice how the URL is rewritten to the root host, and /docs/ is removed from the URL

Expected behavior

The URL should not be rewritten to the root host. /docs/ should be preserved.

System Info

System:
    OS: macOS 13.2
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 98.54 MB / 16.00 GB
    Shell: 5.8.1 - /bin/zsh
  Binaries:
    Node: 16.17.1 - ~/.nvm/versions/node/v16.17.1/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 8.15.0 - ~/.nvm/versions/node/v16.17.1/bin/npm
  Browsers:
    Chrome: 109.0.5414.119
    Firefox: 100.0.2
    Safari: 16.3
  npmPackages:
    vitepress: 1.0.0-alpha.40 => 1.0.0-alpha.40 

Additional context

No response

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