I encountered the same problem as you.
I solved this by providing channelUrl with the channel.html file in the FB.init file as follows:
FB.init({ appId: '[your appid]', channelUrl: 'http://[your website]/channel.html', status: true, cookie: true, xfbml: true })
The channel.html file should contain only a script line to connect the facebook all js file as what should now be on your page next to FB.Init. Once you have placed this line of code in the channel.html file, remove it from your page.
Hope this helps
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