We now also only access the document when the state is
nsIWebProgress::STATE_STOP. The comments in the previous code indicated that
touching the document inside the event handler when the state is not STATE_STOP
would result in the content creating a new about:blank document to retrieve the
values from. However, it then went on to do this in another location, causing a
document to be created whenever we received an onStateChange event. This should
no longer occur.
Differential Revision: https://phabricator.services.mozilla.com/D28125
--HG--
extra : moz-landing-system : lando
461c1d28b9