Uncaught ReferenceError: FB is not defined

The Facebook Javascript library is loaded asynchronously, which means it probably hasn't been fully loaded by the time you make your call.

You should wrap your call in an onReady handler so that your code only executes after the browser says it's done loading all scripts, like:
I hope that helps get you going!

Can you let us know a URL we can test on? We know the domain, so you don't need to post that if you'd like to keep your site private, but we'll need a path to a page where you're testing so we can see the Javascript error and understand how you've implemented the code.

We just tested on your home page and I didn't see any calls to FB and no Javascript errors either.

Thanks,
Alex

I couldn't see the solution code on that page, so I can't be sure, but what you describe is a valid solution. Basically, you can't make any FB calls until it's been loaded. If you implemented a method to chain/queue your call until after the init, that will get the job done.

Facebook does have some suggestions for how to do this best, but it's more of a handwaving of 'make sure FB is loaded first'. If you don't want your queue method, you can do the jQuery ready method and then do a quick polling to check if FB is available every 100ms and then execute the code once FB is ready. That may be very similar to what you're doing now.

Neither option is elegant, but hope that helps,
Alex