List of Listings

Chapter 1. The Core of CORS

Listing 1.1. Making a CORS request

Chapter 2. Making CORS requests

Listing 2.1. Making a CORS request to the Flickr API

Listing 2.2. Setting up an HTTP request to the Flickr API

Listing 2.3. Calling the send method to initiate the HTTP request

Listing 2.4. Assigning a function to the XMLHttpRequest’s onload event handler

Listing 2.5. Handling a CORS error using the onerror event handler

Listing 2.6. Using the XDomainRequest object to make a request to the Flickr API

Listing 2.7. Creating the correct CORS request object across browsers

Listing 2.8. Drawing a rectangle on a canvas

Listing 2.9. Setting an image’s crossOrigin attribute

Listing 2.10. Using jQuery to make a cross-origin request

Chapter 3. Handling CORS requests

Listing 3.1. Sample server code

Listing 3.2. Sample client code

Listing 3.3. Update app.js to add a new server running on localhost:1111

Listing 3.4. Adding wildcard CORS support to the server

Chapter 4. Handling preflight requests

Listing 4.1. Adding a function to delete posts

Listing 4.2. Adding server support for deleting posts

Listing 4.3. Making cross-origin requests without CORS

Listing 4.4. Checking if the request is a preflight

Listing 4.5. Modifying handleCors to respond to a preflight

Listing 4.6. Adding headers to the request

Listing 4.7. Flow of additional headers on CORS requests

Listing 4.8. Responding to Access-Control-Request-Headers

Listing 4.9. Adding the Access-Control-Allow-Origin header to all CORS responses