Learning ASP.NET Web API (Video 22)

This video tutorial covers the concept of Cross-Origin Resource Sharing (CORS) in Web APIs. It begins with an introduction to SSL and CORS, explaining the same-origin policy and its security implications. The video defines what an origin is and discusses common CORS issues, such as API calls failing due to CORS restrictions. It then provides a detailed guide on configuring CORS in ASP.NET Web API, including setting up policies to allow requests from different origins. The tutorial also explains how to apply these CORS policies at the application, controller, and method levels, and concludes with a brief overview of the next topic, which is input validation.

Explain what CORS is and how it can be configured in a Web API.

What is the same origin policy and why do browsers follow it?

Describe the significance of the 'Access-Control-Allow-Origin' header.

What are the steps to enable CORS in an ASP.NET Web API application?

How can CORS be disabled for specific methods in a Web API?