NodeBalancer and redirecting http to https with squid
I've gotten to the point where I need to redirect http traffic to https and hit a snag. The NodeBalancer talks to two caching servers which run squid, so I need to configure squid to do the redirecting. From the guide, it looks like the way to do that is to look at the X-Forwarded-Proto header, however
Does the NodeBalancer provide any other way of determining if the original request was http or https that I can have squid check?