3.3.5.4.5 Response Message Processing

When clean-up processing is complete, the relying party SHOULD return any relying party specific data (such as a string indicating that clean up is complete) to the web browser requestor. If the wreply parameter, as specified in section 2.2.6, was included with the wsignoutcleanup1.0 message, the response SHOULD be sent to the URL specified by wreply.<83>