Description: Header manipulation is the process of modifying HTTP headers in requests or responses for various purposes. These headers are key components in the communication between clients and servers, as they carry essential information about the request or response, such as content type, content length, cookies, and cache instructions. Header manipulation allows system administrators and developers to adjust the behavior of web applications, optimize performance, and enhance security. For example, custom headers can be added for authentication, existing headers can be modified to redirect traffic, or unnecessary headers can be removed to prevent the exposure of sensitive information. This technique is particularly relevant in various web environments, where servers need to ensure that requests are directed correctly and responses are handled efficiently. Header manipulation can also be used to implement security policies, such as protection against injection attacks or preventing information leaks, ensuring that only necessary and relevant data is transmitted between the client and server.
