It is the foundation of data communication for the world wide web It provides a standardized way for computers to communicate with each other. Xhr is a javascript object that is used to transfer data between a web browser and a web server
Xhr is often used to request and receive data for the purpose of modifying a web page. The default port is tcp 80, but other ports can be used It is part of the internet protocol suite and defines commands and services used for transmitting webpage data.