 - decidePolicyForNavigationAction
<NSURLRequest URL resources/window-open-to-notify-done.html, main document URL resources/window-open-to-notify-done.html, http method GET> is main frame - yes should open URLs externally - no
 - decidePolicyForNavigationAction
<NSURLRequest URL notify-done.html, main document URL notify-done.html, http method GET> is main frame - yes should open URLs externally - no