Creative coding may not use cross-domain scripting?
I was reading this https://support.google.com/adwordspolicy/answer/94230?hl=en
In the Static Banner Ad section, I saw this Creative coding may not use cross-domain scripting
Search around and have a general idea of what is it.
My script will generate the ad in an iframe, in order to communicate the the iframe, I have to use the Javscript Postmessage. But I don't know if this violet the policy.
So can anyone please clarify for me?
Appreciate and thanks in advance.