utils.pyx > GetPyBrowserByCefBrowser() > Popups:
# Should we pass handlers from the parent? {} - empty right now.
# Add a new parameter in CreateBrowser() called "popupsInheritHandlers"?
# Or maybe just an another dict "popupHandlers"? User could pass the same
# handlers dictionary to both parameters.
# What about popups created by popups? How do we do the inheritance in this case?