1) A Browser requests the Start page from the ServerA

2) The Start page is retrieved from the ServerA.

3) Create in the start page IFRAME (name it - "client iframe") and insert it in the document from ServerA (client.

4) In "client iframe" create ne IFRAME element ("server iframe") and insert it in the document from ServerB (server.html). Documents (client.html and server.html) contain special script that can transfer data between ifarmes.

5) "Client iframe" transfer information about HTTP method and URL that we want do cross-domain request to "server iframe".

6) "Server iframe" do simple XmlHttpRequest to the service that we need (it can do that because download from same domain) and get informaton from service.

7) "Server iframe" transfer data to "client iframe" and now we get information that we want.