Why Isnt this PostAsync() posting on Pastebin?

Its reporting the Print at the end of the Post yet it doesnt Post :/ Any ideas?

local Link=('http://pastebin.com/maN3f8pW')
local http=game.HttpService
local data={'m=Instance.new("Message",game.workspace) m.Text="PASTEBIN! wait(15) m:remove()'}

function a()
data=http:JSONDecode(data)
http:PostAsync(Link,data)
wait()
print(data)
end


while true do
wait(5) 
a()
end