FBML apps fail under HTTPS

Question

When setting in the developer console a secure url (https), and trying to load the canvas under facebook: https://apps.facebook.com/fanta-seriea/ I get the error saying that facebook received an empty responde. Am I doing something wrong? The certificate is allright: https://fanta-seriea.com So why is this happening? L.

Answer 1

If you enable SSL for your FBML app, please make sure that your SSL certificate includes all intermediate certificates in the chain of trust as our SSL validation is strict. You can use third-party SSL analysis tools (e.g., https://www.ssllabs.com/index.html) to check your certificate status and fix any errors (and warnings). If your SSL certificate has problems, you may see "Empty response received" error when you load your FBML canvas app."

From https://developers.facebook.com/blog/post/567/