I have a PHP application which has a "Share on Facebook" button that,
On the development server shows the thumbnail images correctly and allows the user to select between them
On the live server, it does NOT show the thumbnail images at all.
The relevant portion of the .htaccess file is:
# Set up caching on media files for 2 days <FilesMatch "\.(gif|jpg|jpeg|png|flv)$"> ExpiresDefault A172800 Header append Cache-Control "public" </FilesMatch>
I'm using the exact same set of php files and .htaccess, but the server configuration is different.
What could be causing this? Note that the text appears fine.
We are also doing some URL rewriting related to images in the .htaccess (on both servers):
... RewriteRule ^.*/content/image/(.*)$ content/image/$1 [L] ... RewriteRule ^.*/images/(.*)$ images/$1 [L] ...
Would that be somehow making a difference? Images appear fine all throughout the site.
(I posted this question earlier as http://stackoverflow.com/questions/4142597/share-on-facebook-does-not-show-thumbnail-images) )