●Change8

Migrating to Nuxt v3.15.3

Version v3.15.3 introduces 1 breaking change. This guide details how to update your code.

Released: 1/24/2025

1
Breaking Changes
2
Migration Steps
9
Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

devServer.corsdefineNuxtConfigTransitionfindPathresolvePathaddRouteMiddlewareNuxtLinkcallOnceClientOnly

Breaking Changes

●Issue #1

The dev server now imposes CORS origin restrictions by default for Vite and Webpack/Rspack middleware. If you use a custom hostname for development, you must now explicitly configure allowed origins in your config.

Migration Steps

  1. 1
    Upgrade Nuxt and its dependencies by running: `npx nuxi@latest upgrade --force`
  2. 2
    If using a custom hostname or external access to the dev server, update `nuxt.config` to include `devServer: { cors: { origin: ['https://your-custom-domain.com'] } }`.

Release Summary

Nuxt 3.15.3 is a security-focused patch release that introduces mandatory CORS restrictions on the dev server and includes various performance optimizations and bug fixes.

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View the full release notes and all changes for Nuxt v3.15.3.

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