The HTTP Location header field is returned in responses from an HTTP server under two circumstances: 1. * To ask a web browser to load a different web page (URL redirection). In this circumstance, the Location header should be sent with an HTTP status code of 3xx. It is passed as part of the response by a web server when the requested URI has: 2. * Moved temporarily; 3. * Moved permanently; or 4. * Processed a request, e.g. a POSTed form, and is providing the result of that request at a different URI 5. * To provide information about the location of a newly created resource. In this circumstance, the Location header should be sent with an HTTP status code of 201 or 202.