Function policy

policy(options?: CORS.Options): Middleware

CORS Middleware Factory

// Allow all (default)
cors()

// Allow specific origin
cors({ origin: 'https://myapp.com' })

// Allow multiple origins
cors({ origin: ['https://myapp.com', 'https://admin.com'] })

// Allow with regex
cors({ origin: /^https://.*\.mycompany\.com$/ })

// Allow with credentials
cors({
  origin: 'https://myapp.com',
  credentials: true
})