I do apologize for the delay. Our child is very sick and I'm currently at the hospital responding to this. All should be well with time, but we appreciate your patience.
As to your points above:
1) We haven't heard of an issue with the Unlink Accounts page but will see if we can recreate. The message "Invalid Token" comes from Joomla as a security measure when submitting a form. A 'token' is assigned to the current user viewing a page and then that same token must be submitted with the form and be correct for that user or else you get that message.
If you're seeing it, it indicates there's some sort of issue with that token. Can you try (temporarily, to test), disabling any caching on your site (in Joomla Global Configuration or any extra extensions you may have for caching) as well as the System - Cache plugin, if enabled. Sometimes, those caching extensions will cache an old token and therefore cause the invalid token issue.
If that doesn't fix the issue, let us know and we can dig in deeper.
2) At 90kB, it's not 'large' in the scheme of things, and it's also set to be cached by the browser. And, since it's from Facebook, that script can be cached by *any* site the user visits. So, if the user goes to blahblah.com which has the Facebook Javascript file loaded and then visits your site, that file will already be cached and shouldn't show any speed hit. If you use tools to check speed, they always test from a completely uncached starting point.. which is good to test from, but usually not realistic (and the worst case) from a user standpoint.
With that said, the Facebook Javascript is something we're investigating how to better optimize the loading of. It's required on the page for authentication, like buttons, comments and multiple other features within JFBConnect. However, there are some ways that we are looking into to not include it on specific pages or only when specific features that need it are included.
I hope that helps explain things a bit more, but please let us know about the token issue or any other questions you may have.
Thanks,
Alex
Unlink not working and performance issue
