Cursor's CORS Config Is Wide Open by Default (Here's the Fix)

1. 1Review your Cursor and Claude Code configurations for CORS settings
2. 2Pass an explicit origin array to the cors() function
3. 3Set credentials to true to enable browser-enforced restrictions
4. 4Test your API responses to ensure the fix is working correctly

Backend developers and DevOps engineers benefit from this knowledge as it helps prevent security vulnerabilities in their applications, and ensures the security of their API responses

💡 Explicitly configuring CORS settings is crucial to prevent security vulnerabilities and protect API responses

🚨 Security alert: Cursor's CORS config is wide open by default! Fix it by passing an explicit origin array and setting credentials to true 💡