Display Javascript "same Origin Policy" Violations

I'm developing a mobile app which runs a simple HTTP server and a WebView. The WebView displays an external website which should access the server via javascript (GET). Unfortunate

Solution 1:

Firefox(3.6.20 and Chrome) throws an error on XMLHttpRequest cross domain violations. These errors can being silenced by try{...} catch(ignore){} blocks. If you know the actual path of the request you can check in the Firebug's "Net" tab, all the requests(even those denied by "same origin policy") show in the "All" section, and in the "XHR" section those denied by "same origin policy" don't.