You don't have to code an app.
No need to be a dev.
You only have to create an app ID at:
developers.facebook.com/apps
But the iframe mode should work for you too. (as set on Nordmograph.com/extensions btw)
- Need help? Post the URL of the related page (eventualy as confidential info), it will help solve your issue faster.
- An error, notice or warning? report the exact message including the line number
- If you get a white page , enable error reporting and / or check your server error logs.