I'm trying to get a child window to call a function on a parent window:

https://www.dropbox.com/s/gle9sou3gj...wOpenerPOC.zip

LaunchPage.html is used to open ResolveCaseDialog.html. The Submit button on ResolveCaseDialog submits the selected "Resolution Type" value to window.opener.ProcessReturnValue().

However, when I click the Submit button, the ResolveCaseDialog js throws the following exception: "Uncaught SecurityError: Blocked a frame with origin "null" from accessing a frame with origin "null". Protocols, domains, and ports must match."

Can you please take a look at this setup and let me know if there's a trick to making this work that I'm missing?