title: trying to use window.opener technique to call parent js function from child popup window?
body: <p>I'm trying to use the js window.opener technique to return a selected value from a child window back to a parent js function.  Here's a url to a zip file where I set up a basic poc:</p>
  
  <p><a href="https://www.dropbox.com/s/gle9sou3gj770ej/WindowOpenerPOC.zip" rel="nofollow">https://www.dropbox.com/s/gle9sou3gj770ej/WindowOpenerPOC.zip</a></p>
  
  <p>LaunchPage.html is used to open ResolveCaseDialog.html.  The Submit button on ResolveCaseDialog submits the selected "Resolution Type" value to window.opener.ProcessReturnValue().</p>
  
  <p>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."</p>
  
  <p>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?</p>