Epiphany 3.8 issue with http authentication

We've got a site that uses http authentication to restrict access, and
have never had a problem accessing with any browser. When I upgraded to
Fedora 19 and epiphany 3.8, epiphany no longer works with the site. I've
filed the following bug:

https://bugzilla.gnome.org/show_bug.cgi?id=697396

The basic problem is that after submitting the username and password,
epiphany will load the requested page, but no other referenced pages or
files from the server (css, js scripts, images, etc.), and attempts to
navigate to any other page bring up a 404 error until epiphany is closed
and restarted and reauthenticates.