2.2.1.3 Cookie
The syntax of the Cookie header MUST be as specified in [RFC2109].
This header is defined for use in requests sent to a server. Clients SHOULD share a single repository for RTSP cookies and HTTP cookies and treat http:// and rtsp:// URLs as a single protocol.
This means that if a cookie is set for the URL rtsp://example.com/ using the RTSP protocol, and the client then sends an HTTP GET request for the URL http://example.com/, then the cookie SHOULD be included in the GET request, even though it was originally obtained through RTSP.