Hi Alec,

I have fiddled a bit with the plugin options, and eventually found my problem is related to the ‘social meta tags’; deactivating the “Insert Facebook Open Graph tags:” and “Insert Twitter Card meta tags:” checkboxes made each of my ‘intruding’ closing tags disappear.

I tried having a look around in your plugin code and found the function handling those options but couldn’t figure out what might be wrong with them, my proficiency in PHP is still somewhat basic and to me everything seemed to be properly opened and closed in there.

I think I can still get most of the benefit from your plugin even with those options disabled, so I’m sticking with that solution for now.

Thanks for your replies anyway, and for creating plugins like these in the first place.

Best regards,
José