Oneboxing a https site that uses images over http produces mixed content

… and a browser alert, see here:

Or should Nasa fix this? :wink:

Oneboxed stuff is periodically cache, hasn’t the alert gone away for you?

Yes, here on Discourse. But not on my site:

Did I miss a certain setting? Thanks!

Edit: Sorry, this is a restricted category, so you can’t see it. Here on Discourse the image is gone for me, still there on my site:

Edit2: I realized that the nasa image is 8mb :wink: So maybe that is the reason why no local upload is generated?