Enable Adobe Granit OAuth Handler

Hi,

I am trying to integrate OAuth handler for Facebook. Being a novice, I went through this document too: Social Login with Facebook and Twitter

However, on the publish instance, I am unable to activate the handler and whenever I check it through 'j_security_check' URL using the config ID of the Facebook provider, I get the blocking error. The document says to simply edit the Adobe Granite OAuth Authentication Handler in the configMgr and save it. But it seems to not work.

So far so,

1. I created a Facebook App

2. Published the Facebook Connect Cloud Service

3. Enabled Social Login on the page (though not visible on publish instance)

Any help with the precise steps would be appreciated.

Thanks!

Karam