title: Unsafe JavaScript attempt to access frame with URL errors
body: <p>Error 1:</p>
  
  <blockquote>
    <p>Unsafe JavaScript attempt to access frame with URL
    "Test URL" from frame with URL
    <a href="https://www.sandbox.paypal.com/webapps/checkout/webflow/sparta/expresscheckoutvalidatedataflow?execution=e1s1" rel="nofollow">https://www.sandbox.paypal.com/webapps/checkout/webflow/sparta/expresscheckoutvalidatedataflow?execution=e1s1</a>.
    Domains, protocols and ports must match.</p>
  </blockquote>
  
  <p>Error 2:</p>
  
  <blockquote>
    <p>Unsafe JavaScript attempt to access frame with URL
    "Test URL" from frame with URL
    <a href="https://www.sandbox.paypal.com/webapps/checkout/webflow/sparta/expresscheckoutvalidatedataflow?execution=e1s2" rel="nofollow">https://www.sandbox.paypal.com/webapps/checkout/webflow/sparta/expresscheckoutvalidatedataflow?execution=e1s2</a>.
    The frame requesting access set 'document.domain' to 'paypal.com', but
    the frame being accessed did not. Both must set 'document.domain' to
    the same value to allow access.</p>
  </blockquote>
  
  <p>Ok So I am trying to integrate Paypal Express Checkout, the logic flow for the Purchase fine except for 1 exception. When Paypal purchase is completed/canceled, the Lightbox doesn't close, the Paypal handler shows the website inside of the Lightbox.</p>
  
  <p>I know there are a lot of issues on SO about this but none of them seem to work. FYI im running in Chrome, these errors don't appear in Firefox</p>