I signed up to the https site and get a security certificate warning requiring me to give permission whenever I change pages that contains other content besides text. I always figured it was because the security certificate was issued for the http site, because it says the certificate was issued to another address.
I can see videos that are properly installed, if I quickly give permission.
I don't know if that information is helpful, because I figured everybody would know that by experiencing the same thing, if they were using the https address. IIRC, I think I chose it, because it was easier to sign up, based on information from ASIB.
When I use the http address, I don't have to give permission to see videos.