@Execute
    public HtmlResponse index() {
        final OptionalThing<FessUserBean> userBean = getUserBean();
        activityHelper.logout(userBean);
        final String redirectUrl = userBean.map(user -> ComponentUtil.getSsoManager().logout(user)).orElse(null);
        fessLoginAssist.logout();
        userInfoHelper.deleteUserCodeFromCookie(request);
        if (StringUtil.isNotBlank(redirectUrl)) {

		redirectPage.append("/error/systemerror/");
		response.sendRedirect(redirectPage.toString());
	} else {
		response.sendError(statusCode);
	}
} else if("logOut".equals(type)) {
	redirectPage.append("/login/?type=logout&code=" + statusCode);
	response.sendRedirect(redirectPage.toString());
} else if("badRequest".equals(type)) {
	redirectPage.append("/error/badrequest/");

		redirectPage.append("/error/systemerror/");
		response.sendRedirect(redirectPage.toString());
	} else {
		response.sendError(statusCode);
	}
} else if("logOut".equals(type)) {
	redirectPage.append("/login/?type=logout&code=" + statusCode);
	response.sendRedirect(redirectPage.toString());
} else if("badRequest".equals(type)) {
	redirectPage.append("/error/badrequest/");

            }
            return redirect(LoginAction.class);
        }
    }

    @Execute
    public ActionResponse logout() {
        final SsoManager ssoManager = ComponentUtil.getSsoManager();
        try {
            final ActionResponse actionResponse = ssoManager.getResponse(SsoResponseType.LOGOUT);
            if (actionResponse == null) {
                throw responseManager.new400("Unsupported request type.");

                      "operation": "productpage.default.svc.cluster.local:9080/login"
                    }
                  },
                  {
                    "match": {
                      "path": "/logout",
                      "case_sensitive": true
                    },
                    "route": {
                      "cluster": "outbound|9080||productpage.default.svc.cluster.local",

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.sso;

public enum SsoResponseType {
    METADATA, LOGOUT;

            }
        }
        return null;
    }

    public String logout(final FessUserBean user) {
        if (available()) {
            final SsoAuthenticator authenticator = getAuthenticator();
            if (authenticator != null) {
                return authenticator.logout(user);
            }
        }
        return null;
    }

    <error-code>403</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=logOut</location>
  </error-page>
  <error-page>
    <error-code>404</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=notFound</location>
  </error-page>
  <error-page>
    <error-code>408</error-code>
    <location>/WEB-INF/view/error/redirect.jsp?type=logOut</location>
  </error-page>
  <error-page>
    <error-code>500</error-code>

											<la:link href="/admin" styleClass="dropdown-item">
												<la:message key="labels.administration" />
											</la:link>
										</c:if>
										<la:link href="/logout/" styleClass="dropdown-item">
											<la:message key="labels.logout" />
										</la:link>
									</div>
								</div>
							</li>
						</c:when>
						<c:when test="${ pageLoginLink }">
							<li class="nav-item"><la:link href="/login"

											<la:link href="/admin" styleClass="dropdown-item">
												<la:message key="labels.administration" />
											</la:link>
										</c:if>
										<la:link href="/logout/" styleClass="dropdown-item">
											<la:message key="labels.logout" />
										</la:link>
									</div>
								</div>
							</li>
						</c:when>
						<c:when test="${ pageLoginLink }">
							<li class="nav-item"><la:link href="/login"