@yasui/cors

Production-ready CORS middleware for YasuiJS

Features

• ✅ Origin validation (exact match, wildcard, regex patterns)
• ✅ Preflight OPTIONS handling
• ✅ Credentials support (cookies, auth headers)
• ✅ Cache optimization (Vary header)
• ✅ Private Network Access (CORS-RFC1918)
• ✅ Security-first defaults

Installation

npm install @yasui/cors

Quick Start

import yasui from 'yasui';
import { cors } from '@yasui/cors';

yasui.createServer({
  middlewares: [
    cors({
      origins: ['https://app.example.com'],
      credentials: true
    })
  ],
  controllers: [UserController]
});

📖 Documentation

License

This project is licensed under the GNU Affero General Public License v3.0 or later. See the LICENSE file for details.