Vaadin XS under "dojo web page"

Hi
We have tried to test the XS plugin.
We based our test on
this
blog post.
It works fine as a stand alone web application.
When we try to embedded it inside our target platform (VMWare VCO web UI which is based on dojo ) we can not see the Vaadin iframe in the page.
It looks like the JSONP trick is broken somehow and cross site scripting is not enabled any more …:mad:
See attachments for details.
Thanks
Avishay
12264.png
12265.png

I apologize for posting it under UI Components - it should be under Add Ons