Failed Facebook login since Mar 2018
At the end of 2017, Facebook changes their login policy. As a result, Facebook login failes with message like beow.
To fix, follow the instructions below.
1. Update Gianism
2. Facebook app’s setting
Reconfirm Facebook app’s setting. Requirements are below.
If facebook login has been working on your site, this couldn’t be nesessary. In app setting page, go to “App > Setting > Basic” and check if domain is propery set.
On screeen “Product > Facebook Login > Setting”, Set URI which you can get on Gianism setting screen as Valid OAuth Redirect URIs.
After following the insructions above, you can login via facebook as before. F.Y.I, you may face type of errors.
- You get error on Facebook ＝ Facebook setting is wrong.
- You get error on WordPress ＝ Gianism is old.