FB.getLoginStatus returns status unknown

Question

When calling FB.getLoginStatus using a valid Facebook App the response status is always unknown. Exact response is {authResponse: undefined, status: \"unknown\"}.

Answer 1

This was happening to me until I turn on my browser to allow third-party websites to save and read cookies.

To do this go to

settings > advanced > site settings > Cookies and site data

Then uncheck the option blocking third-party websites from saving and reading cookies. This might not be a good option but it solves these issues for me.