http://www.facebook.com/l.php?u=http%253A%252F%252Fwww.google.com&h=e21851d2dd0010ca5d6496a8db743d4f&ref=mf
It displayed the warning when I tried your method. And it didn't matter if the link was from an external site or not.there is another way to trick someone with "facebook" link but it only works when you link it from external sites, it doesn't work on facebook. IT DOESN'T DISPLAY THE WARNING PART, IT GOES DIRECTLY TO THE LINK YO WANT
Just add a link on some wall, copy link location and you have link redirection with facebook domain
I'm not sure if link expires or get changed on some time (don't think so) -Code:http://www.facebook.com/l.php?u=http%253A%252F%252Fwww.google.com&h=e21851d2dd0010ca5d6496a8db743d4f&ref=mf
PS. sorry for color, most people would probably jump over the post so I colored it to be more visible
What would be the point in using this? Now your visitor has to agree to follow the link, rather than just use tinyurl or some other shortner. Pointless if you ask me