title: localhost test setup - Facebook not allowing localhost
body: <p>Been trying to setup my Facebook app which I want to use for Logins to allow me to test it on my Mac's localhost. Facebook is throwing the error "App Domain: <a href="http://localhost" rel="noreferrer">http://localhost</a> is not a valid domain." when I try change App Domain of Site URL to localhost or 127.0.0.1</p>
  
  <p>IS there any way to get the facebook login api to redirect the browser to my localhost after authentication?</p>