How can I implement CORS in ASP.NET Core securely?

How can I implement CORS in ASP.NET Core securely?

To implement CORS securely in ASP.NET Core, you should configure it in the Startup.cs file. Use the AddCors method to specify allowed origins, methods, and headers.

What are the best practices for setting allowed origins?

Best practices include only allowing specific origins that you trust, avoiding wildcards, and regularly reviewing the list of allowed origins.

Can I enable CORS for specific controllers or actions?

Yes, you can enable CORS for specific controllers or actions by using the [EnableCors] attribute and specifying the policy you want to apply.

What should I do if I encounter CORS errors?

If you encounter CORS errors, check your browser's console for details, ensure your CORS policy is correctly configured, and verify that the client is making requests to the correct origin.