The Cookie header contains one or more cookies that the client previously received from the server in a Set-Cookie header (section 22.214.171.124.2.12). Each cookie consists of the name and value. Multiple cookies are separated by a semi-colon. For details about the syntax, see [RFC6265].
Clients using protocol version 16.0 or 16.1 or clients using OAuth authentication for any protocol version MUST be able to parse and interpret a Set-Cookie header that is received from the server. If the server response includes the Set-Cookie header, clients using protocol version 16.0 or 16.1 or clients using OAuth authentication for any protocol version MUST provide these cookies in a Cookie header when sending future requests to the server.