I've created a couple of tours and have run into an issue with popups (social sharing) and maps, neither will work in Facebook or when a tour is embedded into a Joomla web page. I'm not using an iframe for the Joomla page but coding it straight into the page using a module. (Blank Module from the Joomla extensions directory which allows me to add the correct code to the header and content sections)
Here is a link to a tour in Facebook - https://www.facebook.com/29Avon?ref=hl
- though the offending faulty bits were not included in this one.
The Joomla page is as follows - http://goldingarts.co.nz/oamaru-tour
- this has a map and social sharing which do not pop up when needed.