Facebook Share - Logo images not showing up as thumbnails

I know this has been asked many times, yet I have not found an answer that seems to work.

I am currently sharing a page with one or more images on it on Facebook.

The link is shortened using bit.ly (not sure if this is important, but I thought i'd mention it anyway).

All the images show up as thumbn开发者_开发技巧ails on Facebook, except the one I need (the logo image). The logo image can change based on who the user accessing the page is, but they are all approximately the same size.

I have investigated the issue and haven't found a solution yet.

My url to share the link is below:

http://www.facebook.com/sharer.php?u=http://bit.ly/9hKNT5&t=Hello!

My code to set the logo image as a thumbnail on Facebook is below:

<link rel="image_src" href="http://qa.socialnetworks.iloverewards.com/program_content/program/care/en/logo.png"/>

Is there anything i'm missing or anyway else to force the image to be a thumbnail?

I am also curious if there are any restrictions on images that can be shared. The logo images is a .png file with dimensions anywhere from 700 x 50 to 250 x 120. Perhaps the size or file type is the reason the logo's aren't showing up?

Thanks in advance,

• Mike

Your URL doesn't even pass the linter for me

http://developers.facebook.com/tools/lint/?url=http%3A%2F%2Fbit.ly%2F9F5dfgh%26t%3DHello!

I had the same issue. In my case the mistake was, that I had an png, with the file-extension of a jpg.