32.1. The Role of HTTP

Web applications are very different animals from graphical desktop applications. The first obvious difference is that a production-level web application involves at least two networked machines: one hosting the web site and the other viewing data within a web browser. Of course, during development it is entirely possible to have a single machine play the role of both the browser-based client and the hosting web server which serves up content. Given the nature of web applications, the networked machines in question must agree upon a particular wire protocol to determine how to send and receive data. The wire protocol that connects the computers in question is the Hypertext Transfer Protocol (HTTP).

32.1.1. The HTTP Request/Response ...

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