Cross Domain ExternalInterface “Error calling method on NPObject”

Question

I am trying to enable communication between Javascript and Flash via ExternalInterface across domains. The Javascript works great when it is located on the same domain as th

Answer 1

Since you are loading multiple swfs, you may need to include the security settings in each of those swfs on domain B that are loaded.

You may also need a loader context with the appropriate security settings.

import flash.system.LoaderContext;
import flash.system.ApplicationDomain;
import flash.system.Security;
import flash.system.SecurityDomain;
import flash.net.URLRequest;
import flash.net.URLLoader;

var context:LoaderContext = new LoaderContext(true, ApplicationDomain.currentDomain, (Security.sandboxType == Security.REMOTE) ? SecurityDomain.currentDomain : null);
var l:Loader = new Loader();
l.load(new URLRequest("http://example.com/myswf.swf"), context);