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Coursera

AJAX Authentication and Cross-Origin Requests

Packt via Coursera

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Overview

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Unlock the power of HTTP Basic Authentication to enhance the security of your AJAX applications. This course starts with an introduction to the fundamental principles of authentication, explaining why it’s crucial for web security. You will explore how AJAX leverages HTTP Basic Authentication by passing user credentials, using practical examples that demonstrate these concepts in action. Delve deeper into the technicalities of Basic HTTP Authentication, learning about the role of the XHR object and the significance of Base64 encoding. The course guides you through setting up and configuring an Apache server, a key skill for any developer working with web technologies. You'll gain hands-on experience in creating and securing web forms, configuring .htaccess files, and implementing custom error messages to handle unauthorized access. Finally, transition to modern practices with the Fetch API, ensuring you're up-to-date with the latest web development standards. By the end of this course, you will have a comprehensive understanding of how to secure your AJAX requests using HTTP Basic Authentication, setting a strong foundation for your future web development projects. This course is designed for web developers and IT professionals looking to enhance the security of their web applications. A basic understanding of AJAX, HTTP, and JavaScript is recommended. Familiarity with server-side concepts and command-line tools will be beneficial but not required.

Syllabus

  • HTTP Basic Authentication Using AJAX
    • In this module, we will dive into HTTP Basic Authentication, a critical concept for securing web applications. We will start with an overview of the Basic Authentication scheme, followed by practical examples using the XMLHttpRequest object to pass user credentials. Additionally, we will set up an Apache server, configure authentication, and transition to using the Fetch API for modern AJAX requests. Through hands-on exercises, you will learn how to create secure web applications and understand the importance of server-side code in authentication processes.
  • Cross-Origin-Resource-Sharing (CORS) and Single-Origin-Policy (SOP)
    • In this module, we will delve into the complexities of Cross-Origin Resource Sharing (CORS) and Same-Origin Policy (SOP), foundational concepts for web security. We will explore the different types of CORS requests, including simple and preflight requests, and understand their roles in enabling secure cross-site communications. Additionally, we will learn how to configure servers to properly handle these requests, ensuring secure and functional web applications.

Taught by

Packt

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