api - when used /me/feed post, it seems that the facebook is using cached link url -

i have made web site using facebook api. such below

var params = { method : "stream.publish", message : $("#textareaforsns").val(), picture : urlforgameicon, name : titleforsns, description : descriptionforsns,  link : "http://hgurl.me/a5t"  };  fb.api("/me/feed", "post", params ... 

but, found problem. :(

i used link url http://hgurl.me/a5t. url operating redirect web site according device type. (mobile or pc)

i changed redirection url later doesn't redirect new url in each post. redirect old url yet

old 1 183.110.213.149:10080/ds/install.php. new 1 drgfriends.hangame.com

i don't know how facebook working internally. think facebook using cache data.

how can make short url working redirect new url changed?

can remove cache? please me sir

thank you