Can access courses, but will then display a "Lost connection to Codecademy" message

As said in the title,
Didn’t have this issue with the courses using the previous iteration of the code editor however.

I believe it is being blocked by my firewall, but I cant tell what is being blocked.

What do I need to white-list to have the editor working again?

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Hi @cg2806,

Here’s a list of domains you’ll need to have whitelisted:

www.codecademy.com
external-production.codecademy.com
cdn-production.codecademy.com
codecademy-production.s3.amazonaws.com
production.cdnmycdn.com
terminal.com
herokuapp.com
fonts.gstatic.com
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