Hi!
Trying out your method, Colludium, but I'm running into to trouble knowing what to encode and what not to. This is my url working on Android (decoded):
"https://www.facebook.com/dialog/feed?app_id=MYID&display=popup&caption= Check out my MyGame score of $"&points &"! &link=http://mygame.com/&redirect_uri=https://facebook.com&name=MyGame&picture=http://www.MyGamePicture.png&description=Can you beat my score?"
I'm running my game through the CocoonJS app on iOS (thus not compiled in their cloud yet), if that makes any difference.
Would really appreciate any help I could get!