🧪 Error Lab

Detailed breakdowns of common (and not-so-common) programming errors. Each entry includes root-cause analysis, a proven fix, and a code snippet you can use immediately.

Showing entries matching Vite. Clear filter.

2026-05-06

CORS Error: Access to fetch at 'API' from origin 'APP' has been blocked by CORS policy

Cross-Origin Resource Sharing (CORS) is a browser security mechanism that restricts web pages from making requests to a different domain tha…

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2026-05-05

Uncaught ReferenceError: process is not defined

This error occurs in the browser environment when your JavaScript code attempts to access the `process` object, which is a global object exc…

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2026-04-12

Error: ENOSPC: System limit for number of file watchers reached

This is a Linux-specific error that occurs when an application (typically a development server like Webpack, Vite, or Nodemon) attempts to m…

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2026-04-24

Vite: [plugin:vite:import-analysis] Failed to resolve import

Vite relies on ES modules natively in the browser during development. This error occurs during the dev server build when Vite's dependency p…

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