HTTP access control is a mechanism that controls how resources on a web server can be accessed by clients such as web browsers. It is used to enforce security policies that restrict or allow access to specific resources based on various criteria such as the identity of the requester or the type of request being made.
HTTP access control works by using a combination of server-side configuration and HTTP headers to specify which clients or domains are allowed to access specific resources. When a client makes a request to access a resource, the server checks the origin of the request against a list of allowed origins. If the origin is allowed, the server returns the requested resource to the client; otherwise, the server denies the request and returns an error message.
HTTP access control also allows servers to specify which HTTP methods are allowed for a given resource. For example, a server may allow GET requests but deny POST requests to a particular resource. This helps to prevent unauthorized modification of data or resources on the server.
Overall, HTTP access control is an important component of web security that allows servers to restrict access to sensitive resources and protect against unauthorized access or modification.
