Hi,
I am building facebook app using iFrame (using Google App Engine Java,JSP and Facebook-api-java), and when Facebook calls back to my website, I expect to get the fb_sig_* request params for the iFrame, but I get those params in HTTP referer header instead.
When I use the php client, i get the fb_sig_* in the $[_GET] as expected.
What have I done wrong?
Thanks