What could cause the original 'OAuth2' state parameter to be null in org.springframework.social.connect.web.ConnectSupport?

Question

I am trying to use Spring Social on my application and I noticed while debugging that the original \'OAuth2\' state parameter is always null on my app.

See Spring So

Answer 1

What you're getting from Facebook is not a request attribute , it's a request parameter.

You should get it by something like:

request.getParameter("state")