I'm currently playing around with the public sharing features of OwnCloud.
If I share publicly an image, then sharing the public link on facebook reacts as I would expect : an image preview is inserted directly on my facebook wall.
But if I do the same with an mp4 video file, facebook only displays an empty white square containing the owncloud website URL, no preview, no video playing inside facebook. That is the case no matter if I share the public link or the "direct" download link from owncloud.
Any way to get around this and get the video inserted in a better way, just like it would with youtube ?
Thanks for your time,