I noticed that too. I'm not sure of the time, but it was more than a momentary thing. Https was either not responding at all or it was responding only after a long wait. A bit later, https was taking 20-30 seconds before returning the page, which I think was an improvement over the earlier period where I didn't see it return a page at all.

I didn't personally notice any http outage or delay.

Probably related, hackerne.ws kept working for me well after news.ycombinator.com stopped, possibly because I was accessing the latter over HTTPS.