The request url "/api/cv" is outside of vite dev server root

[BetaConnector]

Describe the bug

Calling endpoints within a svelte-kit project that has no file extension seems to fail.
This worked before upgrading to 2.3.0.

I am not 100% sure if this problem might be a svelte specific problem.

Reproduction

https://github.com/BetaConnector/vite_error/
The Problem seems to be calling an endpoint with file extension / without file extension:
https://github.com/BetaConnector/vite_error/blob/master/src/routes/index.svelte

System Info

Output of npx envinfo --system --npmPackages vite,@vitejs/plugin-vue --binaries --browsers:

  System:
    OS: Linux 5.11 Ubuntu 21.04 (Hirsute Hippo)
    CPU: (16) x64 Intel(R) Core(TM) i9-9900KS CPU @ 4.00GHz
    Memory: 286.56 MB / 15.54 GB
    Container: Yes
    Shell: 5.1.4 - /bin/bash
  Binaries:
    Node: 16.1.0 - /usr/local/bin/node
    Yarn: 1.22.10 - /usr/local/bin/yarn
    npm: 7.12.1 - /usr/local/bin/npm
  Browsers:
    Chrome: 90.0.4430.212
    Chromium: 90.0.4430.212
    Firefox: 88.0.1

Used package manager: npm

Logs

21:35:32 [vite] Internal server error: The request url "/api/cv" is outside of vite dev server root "/home/alex/my-app". 
      For security concerns, accessing files outside of workspace root is restricted since Vite v2.3.x. 
      Refer to docs https://vitejs.dev/config/#server-fsserveroot for configurations and more details.
      at ensureServingAccess (/home/alex/my-app/node_modules/.pnpm/vite@2.3.0/node_modules/vite/dist/node/chunks/dep-c9ea388d.js:57841:15)
      at transformRequest (/home/alex/my-app/node_modules/.pnpm/vite@2.3.0/node_modules/vite/dist/node/chunks/dep-c9ea388d.js:57883:17)
      at processTicksAndRejections (node:internal/process/task_queues:96:5)
      at async viteTransformMiddleware (/home/alex/my-app/node_modules/.pnpm/vite@2.3.0/node_modules/vite/dist/node/chunks/dep-c9ea388d.js:58069:32)

---

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[arpowers]

Getting same errors all over the place with SSR... need the ability to turn this off, not sure why its necessary in dev.

[ihupoo]

fsServe.root would help

for example

server: {
    fsServe: {
      root:  '../../',
    },
  }

[BetaConnector]

fsServe.root would help

for example

server: {
    fsServe: {
      root:  '../../',
    },
  }

I am pretty sure that I tried that without success. I will evaluete that again.

[dominikg]

In vite 2.3.1 that check is disabled by default: https://github.com/vitejs/vite/blob/main/packages/vite/CHANGELOG.md#231-2021-05-12

[BetaConnector]

@dominikg, I got this point, but all files are within the projects src folder. And one file (endpoint) works and the other is not. Seems little bit strange.