cors

When building APIs consumed by frontend applications hosted on different domains, CORS (Cross-Origin Resource Sharing) headers are mandatory. The rack-cors gem simplifies configuration by letting me whitelist specific origins, HTTP methods, and header

Cross-Origin Resource Sharing (CORS) enables frontend apps on different domains to access your API. I use django-cors-headers for production-ready CORS handling. I configure CORS_ALLOWED_ORIGINS for specific domains in production and use CORS_ALLOW_AL

CORS (Cross-Origin Resource Sharing) controls which domains can access APIs. Browsers enforce same-origin policy by default. I configure allowed origins, methods, headers, and credentials. @CrossOrigin enables CORS per controller or method. Global con

Cross-Origin Resource Sharing (CORS) allows browsers to make requests from React apps hosted on different domains than the Rails API. The rack-cors gem configures CORS middleware with fine-grained control over origins, methods, and headers. In develop

CORS is one of those features that becomes security-sensitive by accident. Instead of Access-Control-Allow-Origin: *, I keep a strict allowlist and echo back the exact origin only when it’s approved. I also handle OPTIONS preflight requests explicitly