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The preview snippets don’t work on sites hosted with us because of this security system:

Sites using Cloudflare are exempt from this security system (because Cloudflare itself provides adequate protection against malicious traffic), and the previews should just work.

Looking at, it doesn’t seem to be using Cloudflare at all. So I don’t know if you reverted it on purpose, but please follow the guide @Greenreader9 linked to, because I guarantee you the previews definitely won’t work if you don’t do that.

You do know you’re responding to your own message, right?