do i need to be testing on a server ?

[www.landed.at]

Im not getting anything back from simple

Security.allowDomain(FLICKR_URL);
Security.loadPolicyFile(CROSSDOMAIN_URL);

fs = new FlickrService (API_KEY);
fs.secret = SECRET;

fs.auth.getFrob();
trace(">>>>>>>>>>>>>>>>>>>> " + fs.auth.getFrob()); //undefined -
with or without passin gAPI_KEY

I will try on a server, but if it works on the server how can i get it
to work testing locally ?
Is there a way...

[www.landed.at]

Since this I have seen it working , still undefined and there is an
error that I have to dismiss, but it is working so I guess its
something already at least thats working..this is based on anthony's
code sample the only example I can find.