Unexpected `One or more pages contain dead links` for `localhost` links

Describe the bug

<!-- docs/guide/getting-started.md -->
This will start a local server and open the <http://localhost:3000> page in the browser.

(!) Found dead link http://localhost:3000 in file docs/guide/getting-started.md

Reproduction

N/A

Expected behavior

No error

System Info

System:
    OS: macOS 13.0
    CPU: (10) arm64 Apple M1 Max
    Memory: 24.57 GB / 64.00 GB
    Shell: 5.8.1 - /bin/zsh
  Binaries:
    Node: 16.15.1 - ~/Library/Caches/fnm_multishells/60250_1655730203758/bin/node
    Yarn: 1.22.19 - ~/Library/Caches/fnm_multishells/60250_1655730203758/bin/yarn
    npm: 8.12.1 - ~/Library/Caches/fnm_multishells/60250_1655730203758/bin/npm
  Browsers:
    Chrome: 102.0.5005.115
    Firefox: 101.0.1
    Safari: 16.0
  npmPackages:
    vitepress: ^1.0.0-alpha.2 => 1.0.0-alpha.2

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.

[brc-dd]

It’s getting autolinked IG. Pass it as a prop instead, or disable autolinking:

export default {
  markdown: {
    linkify: false
  }
}

[JounQin]

Additionally, the 1:1 workaround would be <a href="http://localhost:3000" target="_blank" rel="noreferrer noopener">http://localhost:3000</a>.