This is a simple demo showing how inter-window communication happens to support AAC Shim. There is a div overlay on top of the frame so no native events are being passed in. This is done for testing and demo purposes, although some AAC systems may choose to do the same thing in production. Feel free to paste in your own site for testing with AAC Shim. You can fiddle with the settings to see different types of events and how scanning might appear.