WebHeader

A WebHeader, also known as an HTTP header, is a component of the Hypertext Transfer Protocol (HTTP) used to pass additional information between the client (usually a web browser) and the server. These headers are part of the HTTP request and response messages and provide metadata about the request or response, such as the type of data being sent, the server software, and the status of the response.

WebHeaders are crucial for the proper functioning of web applications and services. They enable various functionalities, such as caching, authentication, and content negotiation. For example, the Content-Type header specifies the media type of the resource, while the Authorization header is used to provide credentials for accessing protected resources.

There are several types of WebHeaders, including request headers, response headers, and entity headers. Request headers contain information about the client and the request, such as User-Agent and Accept-Language. Response headers provide details about the server and the response, like Server and Set-Cookie. Entity headers describe the body of the message, such as Content-Length and Content-Encoding.

Custom headers can also be defined to pass application-specific information. However, it is important to note that custom headers should be prefixed with "X-" to avoid conflicts with standard headers.

WebHeaders play a vital role in the communication between clients and servers on the web, ensuring that requests and responses are correctly interpreted and processed.