On Try:
https://try.discourse.org/t/code-pen-onebox/1338
On Meta:
https://codepen.io/cpradio/pen/JwjvyM
Iframely seems to indicate that it should…
Yes, they are blocking us:
Sorry I thought we had this cleaned up. The firewall should allow UA’s that have “Discourse Forum Onebox” in them. That’s still the case yes?
That would be great! I do believe that’s the solution Discourse is after.