Ah, I see. Thanks for explaining. The template they show in the documentation is:
Twitch Error<channel, video, or collection>&parent=streamernews.example.com
Which doesn’t actually explicitly say what <channel, video, or collection> should become. So my guess was, just put the channel name there–which worked when I originally added the embed. Looks like they have examples further down, but ideally the actual spec should define this.
So now it works for https, but still just gives me the gray embed saying it wouldn’t load, for http. Could you help me with how I would go about fixing that? (I tried just using // for the iframe instead of https://, but have the same problem.)