Some times, my users are not able to login using facebook (FB plugin included in the core).
Steps:
1. Facebook is logged in on other tab
2. Try to login to q2a by clicking FB-Login button
3. Pop-up will appear & disappear immediately. (Page doesn't refresh after that)
4. User is not logged-in
One work around (Doesn't work every time) is to open Facebook in another tab, logout & login through q2a.
Does anyone else facing same issue? Any solution for it?