Part 1. Introducing CORS

Cross-Origin Resource Sharing (CORS) enables web clients to make HTTP requests to servers hosted on different origins. CORS is a unique web technology in that it has both a server-side and a client-side component. The server-side component configures which types of cross-origin requests are allowed, while the client-side component controls how cross-origin requests are made.

Part 1 focuses on the client-side component of CORS. Chapter 1 is an introduction to CORS, how it works, and its benefits. It also gives a taste of what CORS looks like by introducing a sample application that makes CORS requests to the Flickr API.

Chapter 2 dives deeper into this sample application to show how the client-side component of CORS ...

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