When using FB/sharer/sharer.php Im running into problems with my TYPO3 installations as no picture are found. Or better, pictures are found but safe_image.php does not use the correct URL when trying to download them.
In Firebug I noticed FB does following:
safe_image.php?d=XYZ&url=http%3A%2F%2Fwww.my-domain.com%2Fen%2Ffileadmin%2FmyPicture.jpg
which fails because the real path is
safe_image.php?d=XYZ&url=http%3A%2F%2Fwww.my-domain.com%2Ffileadmin%2FmyPicture.jpg
Any idea why there is an /en added? The website has multiple languages (changed by domain.com/en or domain.com/de) but all images could be found under domain.com/fileadmin/…
When using og meta tags it works nice, but we want the user to choose the picture he would like to share.
Facebooks is not able to use relative links with base tag. Which is bad.
Solution is to use absolute URLs (config.absRefPrefix).
Related bug tracker issue: http://bugs.typo3.org/view.php?id=18121