Support

I can see in the third screenshot that the redirect URI you are using is wrong which is confirmed by the wording in the error message in your second screenshot. Please remember that I have documented what you need to do:

Find the Valid OAuth redirect URIs option. You will need to enter a URL in the form http://www.example.com/index.php?option=com_ajax&group=sociallogin&plugin=facebook&format=raw replacing http://www.example.com with the real URL of your site.

Following the documentation instructions above the correct redirect URI for your site tarotrade.com would be https://tarotrade.com/index.php?option=com_ajax&group=sociallogin&plugin=facebook&format=raw . Please put it in the Valid OAuth Redirect URIs in your Facebook application.

I registered myself and saw in https://www.facebook.com/settings/?tab=applications that the application was linked correctly.

I believe that you are using caching in your frontend which means that neither the callback handler will work correctly, nor will you be logged into the site. You won't even see any messages.

If you are doubting whether this works, go to https://www.dionysopoulos.me/ and log in with Facebook. It's the exact same plugin, on my personal blog. You will be logged in right away.

This config is correct.

Caching is not just the Joomla! cache.

Have you enabled the System - Page Cache plugin? This tells the browser to cache the page.

Are you using a caching proxy on your server, or a CDN in front of your site? That's also caching.

I really don't know what else it could be. The configuration is correct, the plugin does return to the correct return URL which is allowed by Facebook, and the URL is handled by the plugin (that's why we end up with that hash sign in the final URL). I also know that the login code does work on literally every other site this site is running; not just my development, test, and production sites but several other production sites around the world of which I know of at least half a dozen that my wife has made.

Does login in general work on your site? Like logging in with a username and password as a Registered user? Not as a Super User. Try an unprivileged user, the results may differ from when using a Super User account.

Also, if you have enabled Shared Sessions try disabling it.

Moreover, go to Users, Manage, Options, User Options. Check the New User Registration Group. It should be Registered, or another group which is allowed to log into the site.

Finally, please remember that I am helping you for free and we are in different time zones. My time is spent on the business with priority over doing free support. I only do free support as time permits. Thank you for your understanding.

The auto-filled username and password in the login form is just your browser's password manager. It's completely unrelated to what we are discussing here, and completely inconsequential too.

I still need answers to the following questions.

Does login in general work on your site? Like logging in with a username and password as a Registered user? Not as a Super User. Try an unprivileged user, the results may differ from when using a Super User account. Tell me if it works or not.

If you have enabled Shared Sessions in Joomla's Global Configuration disable it and try logging in with Facebook again. Please tell me the results you get.

I have tried logging into your site using Facebook. It's an email ending at @yahoo.gr. Do you see that user? Please tell me yes or no.

If you see that user, is the user enabled and authorized? Please tell me.

I have tried logging into your site using Facebook. It's an email ending at @yahoo.gr. Do you see that user? Please tell me yes or no.

If you see that user, is the user enabled and authorized? Please tell me.

It looks like the callback code did not actually run. Which is weird, because I do see a redirection to your home page. Let's see if we can get a log.

Go to your site's administrator backend, System, Global Configuration

• Click on the System tab
• Debug System -> Yes
• Click on the Logging tab
• Log Almost Everything -> Yes
• Log Priorities -> All
• Log Categories -> leave empty
• Log Category Mode -> Exclude
• Click on Save & Close

Make sure that in your administrator/logs there is no file named sociallogin_facebook.php.

Go to the frontend of your site and try to login with Facebook.

Now look in your adminstrator/logs directory. There is a file named sociallogin_facebook.php.

Download that file, rename it to log.txt (VERY important NOT to use .php as the file extension!), put that in a ZIP file, and attach your ZIP file with your next reply.

The link tells me that the file is in our trash. It won't let me see or download it.

I saw that you changed the link.

Go to the Meta App Dashboard and click App Settings > Advanced in the left side menu. Scroll to the Security section, and unset the Require App Secret toggle.