Dynamic route handler fails occasionally on Windows with 404

[Everspace]

Environment

Nuxt project info:

---

• Operating System: Windows_NT
• Node Version: v18.13.0
• Nuxt Version: 3.7.0
• CLI Version: 3.7.3
• Nitro Version: 2.6.2
• Package Manager: pnpm@8.7.0
• Builder: -
• User Config: modules, runtimeConfig
• Runtime Modules: @nuxtjs/tailwindcss@6.8.0
• Build Modules: -

---

Reproduction

The following sandbox will produce the problem when the wayfinderContentDir in nuxt.config.ts is set to ./data rather than ./data_mini on a Windows machine

https://codesandbox.io/p/sandbox/naughty-platform-hrsvqk

This will sporadically require moving between the pages of / and /craft/[id].vue, where you can see the particular item with only the requested ID rather than it's name and description displayed.

Describe the bug

Occasionally instead of receiving an output, instead a dynamic route handler throws a 404 when under enough stress(?) on windows platforms.

Additional context

This problem seems to be when I have a large enough file loaded in the context of a route handler. The items.json provided when stripped of the localization information drops from ~250kb, to ~45kb, and reduces or eliminates the problem.

In addition the problem does not seem to be reproducible on WSL, or in the code sandbox.

Logs

XHRGET
http://localhost:3000/api/item/Spectra_Ruins_C_GW3
[HTTP/1.1 404 Cannot find any path matching /api/item/Spectra_Ruins_C_GW3. 5ms]

	
statusCode	404
statusMessage	"Cannot find any path matching /api/item/Spectra_Ruins_C_GW3."
stack	[]

[qoo1476]

+1

i use catch all routes for server api on my nuxt app

it works well on nuxt v3.6.5
but after update (3.6.5 -> 3.7.0) sometimes api response randomly returns 404 errors

and actually it didn't hit my server logs.
most weired thing is it happens only on dev server

---

• Operating System: Windows_NT
• Node Version: v18.17.1
• Nuxt Version: 3.7.0
• CLI Version: 3.7.3
• Nitro Version: 2.6.2
• Package Manager: yarn@1.22.19
• Builder: -
• User Config: telemetry, app, experimental, runtimeConfig, modules, devtools, css, imports, vite, build, image, pwa
• Runtime Modules: vite-plugin-vue-type-imports/nuxt, @nuxt/devtools@0.8.2, @nuxtjs/device@3.1.0, @vueuse/nuxt@10.4.1, @unocss/nuxt@0.55.3, @pinia/nuxt@0.4.11, @nuxt/image@1.0.0-rc.1, @vite-pwa/nuxt@0.1.0
• Build Modules: -

---

[danielroe]

Would you see if this is possible to reproduce using just nitro? It seems like this might be a nitro issue.

[Everspace]

Porting the example repo to a simple nitro with minimum changes, I pointed my nuxt app to source from it. I occasionally also see this 404 when going useFetch("http://localhost:3001/api/item/" + itemId) on windows, but not while I'm in WSL.

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://localhost:3002/api/item/LootGoblinResource. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing). Status code: 404.

The config for nitro is:

const fat = true

export default defineNitroConfig({
  runtimeConfig: {
    wayfinderContentDir: fat ? "./data" : "./data_minified",
  },
  routeRules: {
    '/api/**': {
      cors: true,
      headers: {
        'Access-Control-Allow-Origin': "*"
      }
    }
  }
});

In testing I've found that the smaller json makes it less frequent, but still results in the 404 upstream.

[Everspace]

I should mention I am only running via pnpm run dev for this. I have not tried it with the deploy'd version.

[danielroe]

cc: @pi0

[1714080902120]

I meet the same problem when i sliced a file into chunks and upload with Promise.all. I think the problem was caused by multiple post requests in the same time. When i use await instead of Promise.all, it works well. But i can not use await because of the efficiency.
By the way, the problem does not happen in production when use npm run build && npm run preview.