Facebook One or more of the given URLs is not allowed by the App's settings

Question

Result in console:

Given URL is not allowed by the Application configuration.: One or more of the given URLs is not allowed by the App\'s settings. I

Answer 1

I had this problem because at first I didn't put app domain in the Settings page. And after I added "example.com" to the app domain field (assume URL is http://www.example.com), the problem no longer exists.