Nuxt•2mo ago

500 Error: Too Much Recursion

500 Error: Too Much Recursion useHead nuxt/dist/head/runtime/composables.js:20:10 What I've done: Restarted the server, looked in IDE for recursive elements (couldn't find anything), google didn't have any examples of this. Can't get deep enough from the stack trace to find the issue. - Operating System: Windows_NT - Node Version: v22.20.0 - Nuxt Version: 4.1.3 - CLI Version: 3.28.0 - Nitro Version: 2.12.7 - Package Manager: npm@10.9.3 - Builder: - - User Config: compatibilityDate, devtools, debug, modules, css, ssr - Runtime Modules: @nuxt/ui@4.0.1, @nuxt/content@3.7.1, @nuxt/eslint@1.9.0, @nuxt/test-utils@3.19.2, @pinia/nuxt@0.11.2 - Build Modules: -

19 Replies

kapa.ai•2mo ago

Hi @Knightshade. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- The knowledge sources do not provide a direct explanation for a "500 Error: Too Much Recursion" specifically related to useHead in Nuxt 4.1.3. However, based on the available documentation and related issues, here are some points that may help you debug: 1. Recursive useHead Calls: The error suggests that there may be an unintended recursive call involving useHead. This could happen if useHead is being called inside a computed property or a function that itself is triggered by a head update, causing an infinite loop. Double-check your usage of useHead to ensure it is not indirectly triggering itself. 2. Dynamic/Reactive Head Properties: useHead supports reactive and computed properties, but if these properties themselves depend on something that changes as a result of the head update, it could cause recursion. Make sure that any refs or computeds passed to useHead do not themselves depend on head state or cause side effects that would re-trigger useHead updates useHead composable docs. 3. Component Context: Ensure useHead is only called within the proper Vue component setup context, as calling it outside of this (e.g., in a plugin or async function without the right context) can cause unexpected behavior, though this usually results in a different error Auto-imports and composable context. 4. Recent Changes in Unhead/Nuxt: There have been significant changes in how Unhead (the library powering useHead) handles context and composable resolution in Nuxt 4. If you are importing useHead directly from @unhead/vue or using it outside the recommended context, it may not work as expected and could cause errors Unhead v2 upgrade PR. 5. Check for Duplicated or Global Head Definitions: There is a known issue where certain head definitions (like JSON-LD schemas) can be duplicated across pages if not scoped correctly, which could potentially lead to recursion if your head logic depends on the presence of certain tags GitHub issue: useHead on index.vue applies schema globally. What you can try: - Audit all useHead calls to ensure none are indirectly or directly recursive. - Avoid using computed properties or refs in useHead that depend on head state. - Make sure you are not importing useHead from @unhead/vue; use the Nuxt-provided composable. - If you have recently migrated or upgraded, check for any legacy patterns or conflicting head/meta usage. If after these checks the issue persists, you may need to isolate the problem by commenting out useHead calls and reintroducing them one by one to identify the culprit. I'm sorry, but the knowledge sources do not contain a specific solution or example for this exact error. If you can share a minimal reproduction, it may help further diagnose the issue. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@99626222211833856> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

KnightshadeOP•2mo ago

I am not using useHead anywhere in my code. I need a way to get the full stack trace. @kapa.ai

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- If you are not using useHead anywhere in your code but are still seeing a "Too Much Recursion" error related to it, it's possible that a dependency or a Nuxt module is using it internally. To get a full stack trace and debug this issue, you can enable sourcemaps and use debugging tools as described in the Nuxt documentation. Enable Sourcemaps: Add the following to your nuxt.config to ensure sourcemaps are generated for both server and client:

export default defineNuxtConfig({
  sourcemap: {
    server: true,
    client: true,
  },
})

export default defineNuxtConfig({
  sourcemap: {
    server: true,
    client: true,
  },
})

This will help you get more detailed stack traces with original source locations Debugging. Debugging with Node Inspector: You can start your Nuxt app in debug mode using Node Inspector:

nuxt dev --inspect

nuxt dev --inspect

This allows you to attach Chrome DevTools or your IDE to the running process and inspect the stack trace interactively Debugging. Debugging in Your IDE: You can also set up debugging in VS Code or JetBrains IDEs. For example, in VS Code, use a launch configuration like:

{
  "type": "node",
  "request": "launch",
  "name": "server: nuxt",
  "outputCapture": "std",
  "program": "${workspaceFolder}/node_modules/nuxt/bin/nuxt.mjs",
  "args": [
    "dev"
  ]
}

{
  "type": "node",
  "request": "launch",
  "name": "server: nuxt",
  "outputCapture": "std",
  "program": "${workspaceFolder}/node_modules/nuxt/bin/nuxt.mjs",
  "args": [
    "dev"
  ]
}

This will let you set breakpoints and view the full stack trace when the error occurs Debugging. If you follow these steps, you should be able to capture a more complete stack trace and identify where the recursion is happening, even if it's not in your own code. If the error is coming from a module or dependency, the stack trace should help pinpoint which one. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@99626222211833856> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

KnightshadeOP•2mo ago

Continuing to work the problem, it seems that nuxt/dist/head/runtime/composables.js:20:10 does not exist as a file. @kapa.ai

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- You're correct that the file path nuxt/dist/head/runtime/composables.js:20:10 does not exist as a source file in your project. This path refers to a compiled or bundled file generated by Nuxt during the build process, not a file you would find in your source directory. When you see stack traces pointing to such files, it means the error is happening in Nuxt's internal runtime code, not directly in your own code. To get a more useful and readable stack trace that points to your actual source files, you need to enable sourcemaps in your Nuxt configuration. This will allow stack traces to map back to your original source code, making debugging much easier. Add the following to your nuxt.config:

export default defineNuxtConfig({
  sourcemap: {
    server: true,
    client: true,
  },
})

export default defineNuxtConfig({
  sourcemap: {
    server: true,
    client: true,
  },
})

With sourcemaps enabled, when you encounter an error, the stack trace should reference your original source files instead of the compiled output. This is the recommended way to debug such issues in Nuxt Debugging Nuxt Config: sourcemap. If you still only see references to internal Nuxt files after enabling sourcemaps, it may indicate that the error is indeed happening within a Nuxt module or dependency, rather than your own code. In that case, the stack trace will at least be more informative and may help you or the Nuxt team further diagnose the issue. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@99626222211833856> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

KnightshadeOP•2mo ago

@kapa.ai I have already done this and I'm still only seeing the above.

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Thank you for clarifying that you have already enabled sourcemaps and are still only seeing stack traces pointing to internal Nuxt files like nuxt/dist/head/runtime/composables.js:20:10. Based on the knowledge sources, enabling sourcemaps as you have done is the recommended approach for getting more detailed stack traces in Nuxt Debugging sourcemap config. However, the documentation does not provide further steps or troubleshooting advice for cases where stack traces remain uninformative or only reference internal Nuxt files, even after sourcemaps are enabled. I'm sorry, but the knowledge sources do not contain enough information to explain why you are still seeing only internal Nuxt file references in your stack traces, or to provide additional steps for obtaining a more complete stack trace in this scenario. If the error persists and you cannot get a more useful stack trace, you may need to seek further help by opening an issue on the Nuxt GitHub repository or providing a minimal reproduction for the community to investigate. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@99626222211833856> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

harlan (on holiday 🇨🇱)•2mo ago

if the site loads check the devtools error page also check you don't have conflicting useHead's pnpm why @unhead/vue

KnightshadeOP•2mo ago

Much appreciate your time. This gives me only unhead 2.0.19. Loading the page gets me this (devtools open):

harlan (on holiday 🇨🇱)•2mo ago

Something definitely going wrong here 🤔 Do you have any Vue plugins that might be using unhead

KnightshadeOP•2mo ago

I don't believe so? The only dependencies are from nuxt and nuxt/ui. npm why @unhead@vue ->

@unhead/vue@2.0.19
node_modules/@unhead/vue
  @unhead/vue@"^2.0.17" from @nuxt/ui@4.0.1
  node_modules/@nuxt/ui
    @nuxt/ui@"^4.0.1" from the root project
  @unhead/vue@"^2.0.14" from nuxt@4.1.3
  node_modules/nuxt
    nuxt@"^4.1.3" from the root project

@unhead/vue@2.0.19
node_modules/@unhead/vue
  @unhead/vue@"^2.0.17" from @nuxt/ui@4.0.1
  node_modules/@nuxt/ui
    @nuxt/ui@"^4.0.1" from the root project
  @unhead/vue@"^2.0.14" from nuxt@4.1.3
  node_modules/nuxt
    nuxt@"^4.1.3" from the root project

npm list ->

+-- @emnapi/core@1.5.0 extraneous
+-- @emnapi/runtime@1.5.0 extraneous
+-- @emnapi/wasi-threads@1.1.0 extraneous
+-- @napi-rs/wasm-runtime@1.0.6 extraneous
+-- @nuxt/content@3.7.1
+-- @nuxt/eslint@1.9.0
+-- @nuxt/test-utils@3.19.2
+-- @nuxt/ui@4.0.1
+-- @pinia/nuxt@0.11.2
+-- @tybys/wasm-util@0.10.1 extraneous
+-- better-sqlite3@12.4.1
+-- dompurify@3.2.7
+-- eslint@9.37.0
+-- lz-string@1.5.0
+-- nuxt@4.1.3
+-- pinia@3.0.3
+-- tailwindcss@4.1.14
+-- typescript@5.9.3
+-- vue-router@4.5.1
`-- vue@3.5.22

+-- @emnapi/core@1.5.0 extraneous
+-- @emnapi/runtime@1.5.0 extraneous
+-- @emnapi/wasi-threads@1.1.0 extraneous
+-- @napi-rs/wasm-runtime@1.0.6 extraneous
+-- @nuxt/content@3.7.1
+-- @nuxt/eslint@1.9.0
+-- @nuxt/test-utils@3.19.2
+-- @nuxt/ui@4.0.1
+-- @pinia/nuxt@0.11.2
+-- @tybys/wasm-util@0.10.1 extraneous
+-- better-sqlite3@12.4.1
+-- dompurify@3.2.7
+-- eslint@9.37.0
+-- lz-string@1.5.0
+-- nuxt@4.1.3
+-- pinia@3.0.3
+-- tailwindcss@4.1.14
+-- typescript@5.9.3
+-- vue-router@4.5.1
`-- vue@3.5.22

I experimentally created a new install of nuxt using npm create nuxt@latest <project-name> and npm run dev and I'm still getting the same core error, just now that the maximum stack size has exceeded. @kapa.ai how do I see the call stack?

kapa.ai•2mo ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- To see the call stack for errors in Nuxt, you should enable sourcemaps in your nuxt.config file:

export default defineNuxtConfig({
  sourcemap: {
    server: true,
    client: true,
  },
})

export default defineNuxtConfig({
  sourcemap: {
    server: true,
    client: true,
  },
})

With sourcemaps enabled, Nuxt will generate stack traces that map back to your original source files, making it easier to trace errors. You can also use debugging tools such as Node Inspector (nuxt dev --inspect) or your IDE's debugger to step through the code and view the call stack interactively Debugging. However, if you have already enabled sourcemaps and are still only seeing stack traces referencing internal Nuxt files, the knowledge sources do not provide further steps or solutions for obtaining a more detailed call stack in this scenario. There is no additional method documented for forcing Nuxt to show a more complete call stack beyond enabling sourcemaps and using standard debugging tools. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•2mo ago

<@99626222211833856> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

harlan (on holiday 🇨🇱)•2mo ago

can you share the reproduction? ideally on stackblitz

KnightshadeOP•2mo ago

Stackblitz is throwing me a 500 error I'll retry in a bit I can't believe I missed this, but apparently my terminal wasn't running in admin mode. apologies for wasting folks time.

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500 Error: Too Much Recursion

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