Login button not working

Chris,
I periodically delete older PMs for security and privacy sake. We get a lot of admin credentials for sites, and prefer not to have them sit in our inbox forever (since many admins don't downgrade us after we're done).

Can you re-send the Private Message with admin details and we'll take a look?

Finally, we have another user that was having a similar (but different) issue on a multi-lingual site. Are you using multiple languages or anything else that requires/sets up unique URLs for specific user types? Just a thought...

Thanks,
Alex

Chris,
I just got into the admin area and looked around. I could easily recreate the problem on the front-end. However, in the admin area, I couldn't find any obvious configuration problems.

I then cleaned the Joomla cache, and the error went away. Can you try and test yourself? It's possible it was a corrupted cache or something similar causing the problem. If you run into the problem again, can you try disabling the System - Cache plugin (temporarily) and see if it goes away? That will at least help narrow down where the problem may be originating from.

Thanks,
Alex

Chris,
Thanks for the details. We're still not sure exactly what's causing the problem, but did some more investigation today. With the Joomla cache cleared, it worked. However, it then seemed to break again this morning (meaning the cache refreshed with some 'bad' data, somehow).

I put in a temporary fix to basically prevent caching on the Login/Register page of JFBConnect and that will hopefully work around the issue for now. We haven't narrowed down the actual cause yet, but are trying to on another site which it is easier to reproduce the problem (and therefore, understand it).

Please feel free to test with the current solution, let us know how it goes, and we'll let you know if we come up with a different/better solution.

Thanks,
Alex

Chris (and a few others that I will be pointing to this page),
Nope, that's not it. We found out where the conflict is coming from. It's the "System - FeedGator pseudo-cron Plugin". When enabled, when it's time for that plugin to execute, it will try to overwrite the task variable in the URL with their own function, called 'pseudocron'. That means that JFBConnect's task of "loginFacebookUser" is not being detected, and therefore, our code doesn't operate which then results in a 500 error.

I'm not sure what that plugin does, or why it's interfering in the way that it is. However, we were able to get onto one users site and dig down and absolutely verify that our task wasn't being called during the login process. We didn't try to determine what it was doing or why though.

Here's what we'd recommend:
* Set the "System - FeedGator pseudo-cron Plugin" Access level to "Registered" or "Special". That should only allow it to execute when the user is already logged in. Since Guests are the one clicking the Login With Facebook button, that should prevent this conflict
* Contact the developer of that extension and let them know it has issues. From a quick search, I found multiple results in Google of users talking about 500 errors with many extensions and templates when that plugin is enabled. Setting it to "Registered" should fix JFBConnect issues, but I think you'll run into similar problems with other extensions.

Definitely hope that helps, and please let us know what you find!
Alex

Just to make sure, if you re-enable the TapTheme plugin, it fails again? Haven't heard of that issue before, and we know quite a few users that use TapTheme.. so it 'should' work

When it doesn't work, are you getting the same results as before? A 500 error on the login page, or is it something else? Also, obviously try with the Feedgator pseudo cron plugin disabled, since that could be causing part of the issue too.

Keep us posted, and thanks!
Alex