Hi milad.j


in the server configuration file lightstreamer_conf.xml there is the option <forward_cookies>.
If you set it as 'Y', it will "enable the forwarding of the cookies to the Metadata Adapter through the httpHeaders argument of the 'notifyUser' method."
But "Please note that in any case cookies should not be used to authenticate users, otherwise, having <use_protected_js> set to N and/or a too permissive policy in the <cross_domain_policy> will expose the server to CSRF attacks."


hth
Marco