When Sharing in Facebook thumbnails are not displaying

[riahut.com]

When Sharing in Facebook thumbnails are not displaying, not sure if it is bug but that is the fact.
People, please confirm.

[admin]

The script shares only a title and URL - not photo URL.

[riahut.com]

I think template should be redesigned to allow Facebook fetch photo. But that is custom change.

[riahut.com]

I see the problem, Facebook (and other social media sites) cannot detect thumbnail because it wrapped in <iframe> I think solution will be to add hidden image for the purposes of sharing link with image thumbnail

[riahut.com]

Solution is:

edit your template: item_photo.tpl

and find:
<div class="file_image">
{IMAGE}
<div class="file_links">

make it:
<div class="file_image">
<div class="imageForSharing" style='display:none'><img src="{DOWNLOADSAMPLE}"/></div>
{IMAGE}
<div class="file_links">

this will create hidden thumbnail which Google+ and Facebook will detect properly.
If anyone see any drawback please post here.

[amperial]

That works with item_vector.tpl as well. But how to make it work with video and audio thumbs?