Application windows opened in firefox, rather than being confined to the webapp container

[Phill]

Using the Google Calendar launcher and Google Docs launcher as installed from Firefox.

In calendar, if your session expires and you are asked to log back in, on clicking "Sign In"the calendar window is opened in firefox. If you sign out, the webapp window shows "Please wait" while the calendar you're trying to sign out of opens in firefox.

Similar experience with Google Docs. When you open a document it opens in firefox, not the web application container.

I would expect the web-app container to confine Google Calendar (or whatever domain you're in) to it's window, otherwise it defeats the whole point.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: webapp-container 0.23+14.04.20140428-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-46.62~14.04.1-generic 3.16.7-ckt15
Uname: Linux 3.16.0-46-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.12
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Aug 27 16:06:40 2015
ExecutablePath: /usr/bin/webapp-container
InstallationDate: Installed on 2015-07-13 (44 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: webbrowser-app
UpgradeStatus: No upgrade log present (probably fresh install)