CleanUrls with with-subfolders/without-subfolders fails lookup from __VP_HASH_MAP__ upon trailing slash

[pkkummermo]

Describe the bug

When entering a page from outside the main index /, the hydration fails when trying to access the chunk in pathToFile requesting /assets/docs_quick-reference_index.md.undefined.lean.js leading to a Hydration completed but contains mismatches.

The underlying page loads successfully, but any further navigation is broken.

NOTE: This only occurs when there's a trailing slash.

The key being used is docs_quick-reference_index.md, but the key should be docs_quick-reference.md.

Reproduction

Set cleanUrls with with-subfolders or without-subfolders, add a page further down the content tree, build the project, and access it directly from the browser with a trailing slash.

Expected behavior

The lookup from __VP_HASH_MAP__ should be successful and correctly load the lean chunk making the page interactive.

System Info

System:
    OS: Linux 5.10 Ubuntu 18.04.6 LTS (Bionic Beaver)
    CPU: (16) x64 Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz
    Memory: 16.96 GB / 23.44 GB
    Container: Yes
    Shell: 5.4.2 - /usr/bin/zsh
  Binaries:
    Node: 16.15.0 - ~/.nvm/versions/node/v16.15.0/bin/node
    Yarn: 1.22.17 - ~/.npm-global/bin/yarn
    npm: 8.11.0 - ~/.nvm/versions/node/v16.15.0/bin/npm
  npmPackages:
    vitepress: ^1.0.0-alpha.19 => 1.0.0-alpha.19

Additional context

Possible solution could be to check for both an index.md key as well as a stripped key to cover both use cases.

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]

Yeah, we are aware of this. Ideally we want with-subfolders option to generate /foo/index.html and serve it properly at /foo/. But it's sort of blocked by #285. There might be other ways to fix this, but I believe supporting permalinks is crucial to solving many of similar issues.

[pkkummermo]

Let me know if you want a PR based on the proposed solution, and I'll create one :)