public static void putSingleLogoutRequest(final HttpServletRequest request, final String logoutRequest) {
        request.setAttribute("singleLogoutRequest", logoutRequest);
    }
Put single logout request.

@param request       the request
@param logoutRequest the logout request
core/cas-server-core-web-api/src/main/java/org/apereo/cas/web/support/WebUtils.java