Do any cloud SSL terminators like Amazon ELB support forwarding the channel IDs on to the application servers (i.e. in a custom header)? For that matter, is the

Do any cloud SSL terminators like Amazon ELB support forwarding the channel IDs on to the application servers (i.e. in a custom header)? For that matter, is there a configuration setting for i.e. Nginx if you want to roll your own SSL terminator to do this? Having trouble finding good documentation about how to handle this from the server side.