Your problem is the same origin policy? http://en.wikipedia.org/wiki/Same_origin_policy
Then a solution could be ReST: http://restygwt.fusesource.org/ -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/0jIKF8x7gW4J. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.