I posted the video on LinkedIn and tweeter and than went to post it on Facebook .

When I tried so , I suppose to have a thumbnail / video with title and short description but I get nothing ,

I get mad for a second but than when I quickly found out that Facebook for developers made a solution for this .

Solution :

First , you go to this link and paste your YouTube link here :

Next you paste your link there and clique Debug

and it will be fixed :

If It didn’t work from the first time , you can clique on Scrape Again ,and get the link in Canonical URL ,put it in place of your YouTube video and clique debug one more time , if nothing show up use Scrape Again .

hope this was helpful