Allowing multiple domains for 1 Facebook App (like Tumblr)

Question

I am trying to get my website validated with the Facebook object debugger and I\'m running into the following error:

Object at URL \'http://www.exampl

Answer 1

You cannot add multiple domains, unless the domains differ only by extension or subdomain.

In the example below, cuponeados differs only by domain extension (.com vs .com.ar), so both cuponeados.com.ar and cuponeados.com are allowed:

See this answer here: Need to add multiple domains in a single Facebook Application