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The HTTP/1.1 specification in RFC 2616 defines the response code “303 See Other” in section 10.3.4 as a type of redirection. The meaning of 303 is basically, “Use the GET method to retrieve this other resource that is not necessarily a replacement for, version of, or representation of the requested resource.”

The “303” response code, usable with both a SlashURI and a HashURI, is useful for avoiding OverloadedUri and SemanticBlur.

If you use the Apache HTTP server, this type of redirection is easy to configure. The Apache documentation of the “Redirect” directive is good, but misstates the semantics of the “303” response code.