As per below link , SOP avoid to make a AJAX call outside the same domain (port and site) , where the request is generated.
[url]
http://code.google.com/webtoolkit/doc/latest/FAQ_Server.html#What_is_the_Same_Origin_Policy,_and_how_does_it_affect_GWT?[/url]
So how can we integrate another applications (such as google map) with a GWT application. (with out using RRDNS or using a proxy) ??
