Right order is:
<wls:timeout-secs>1800</wls:timeout-secs>
<wls:cookie-path>/my</wls:cookie-path>
<wls:cookie-secure>true</wls:cookie-secure>
<wls:cookie-http-only>true</wls:cookie-http-only>
<wls:url-rewriting-enabled>false</wls:url-rewriting-enabled>