Patent ID: 8886819

Claim:
A method for communicating between frames of a page having content from different domains, the method comprising: under control of one or more computer systems configured with executable instructions, specifying a set of messages that are able to be sent between a first domain and a second domain with a messaging frame of the page that is capable of transitioning between the first domain and the second domain, the page including a first frame associated with the first domain that is restricted from direct communication with a second frame associated with the second domain; sending a message from the first frame to the messaging frame, the message including information about a change in a state of content for the first frame and a target destination for the message corresponding to the second frame; and transitioning the messaging frame from the first domain to the second domain at least in part to make the message accessible by the second frame; wherein messages outside the specified set are not able to be sent between the first and second domains with the messaging frame.