Facebook Share feature doesn't show thumbnail

hi friends,

can please someone help me?
I always used the Facebook Share feature in my website to share my content.
But today I tried and doesn't show the post thumbnail like usual.
What could be? I didnt touch the code, just stops working...

I have the same feature in my other websites and is working fine, but not in this one.
Can you please test It?
http://www.thongsaroundtheworld.com/conteudo/p.php?id=2160 (NOT SAFE FOR WORK)

Thank you

 

make sure that the images you have been using are in absolute path for example http://domainname.com/images/imagename.jpg

then you will get to see the thumb name but if its coming from some content management system and using relative path then you wont get the images working

make sure that your images are not in relative path like ../../files/images/imagename.jpg (this type of images wont pull)

 

or avoid using hotlinks from facebook.

 

also learn from this post, thanks for sharing.

 

<meta property="og:image" content="http://www.fullurltoimage.com/3480_thumb.jpg">

put this in your header of the page and it will come up. you can also link to the full size image and fb will just bring it down to size.

 

I also got the same problem but I didn't get the right solution, may be here i can get the right solution

 

images should not be in iframe