SecurityError: Error #2122: Security sandbox violation

I've a Loader that loads a Flickr image, then I draw() the content of the Loader.

I get this error:

SecurityError: Error #2122: Security sandbox violation: LoaderInfo.content: mywebsite/myswf.swf cannot access flickr/imageurl. A policy file is required, but the checkPolicyFile flag was not set when this media was loaded开发者_开发知识库. at flash.display::LoaderInfo/get content()

The corssdomain.xml is loaded from Flickr, I did set checkPolicyFile to true for a LoaderContext that I pass as the 2nd parameter to the load() method.

What am I missing?

This problem is similar to facebook pictures loading from actionscript as described here http://novacoders.blogspot.com/2011/04/loading-pictures-from-facebook.html

OK, I've figured out the problem. I was loading all the images from static.flickr.com and that's where the crossdomain file came from. That url gave a 302 response status and the images were actually coming from farmX.static.flickr.com. Now I've just changed the flickr url to farm4.static.flickr.com and everything is fine.