JavaScript and JSON Essentials

The problem with cross-domain AJAX calls

All the asynchronous calls that we have made until now have been on the same server. There are situations where we would want to load data from a different domain, such as fetching data from other APIs. Server-side programs are designed to handle these kinds of calls; we can use cURL to make HTTP calls to different domains to fetch such data. This increases our dependency on server-side programs as we would have to make a call to our server, which would in turn make a call to another domain to fetch the data, which would be returned to a client-side program. It might come across as being a trivial issue, but we are adding an extra layer to our web architecture. To avoid making a server-side call, let us ...