With HTTPS/SSL, there are a few things to consider. If you are not terminating the SSL session at the LoadMaster, then your only options are Source IP Address persistence or SSL Session ID Persistence. Since the stream is encrypted in a non-terminated session, the LoadMaster cannot look at the HTTP headers or other Layer 7 information.

If you are terminating the HTTPS/SSL session at the LoadMaster, then any of the LoadMaster persistence options can be used. Since the HTTPS/SSL session is terminated, the LoadMaster sees all of the unencrypted traffic, and is able to look at the HTTP stream. This is true even when you are terminating the HTTPS/SSL session at the LoadMaster and then re-establishing an SSL session with the Real Servers.