Not able to get connection_token from template

I have MyTemplate.php which i use for one of myPage and i redirect user to https://www.myDomain.com/myPage/ once he login via facebook.

My get token code is on MyTemplate.php but do not get token for https://www.myDomain.com/myPage/. However, i do get the token if user gets redirect to https://www.myDomain.com/MyTemplate.php page.

//Get connection_token

$token = $_POST[‘connection_token’];

Please let me know for more information.

https://www.ads-software.com/extend/plugins/oa-social-login/