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Play by Play is a series in which top technologists work through a problem in real time, unrehearsed, and unscripted. In this course, Play by Play: JavaScript Security, Troy Hunt and Aaron Powell demonstrate building an application in the browser, particularly a Single-page Application (SPA), and show how the application works, and its visibility to the user. By the end of this course, you’ll have a better understanding of how to minimize some common security risks when working with Single-page Applications.