Clicking "allow" button from website crashes ussoa, but hitting 'Enter' on keyboard works and account is added

More logs:

(gdb) run --desktop_file_hint=/usr/share/applications/online-accounts-ui.desktop
Starting program: /usr/bin/online-accounts-ui --desktop_file_hint=/usr/share/applications/online-accounts-ui.desktop
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/arm-linux-gnueabihf/libthread_db.so.1".
[New Thread 0xb38fa3d0 (LWP 11256)]
[New Thread 0xb2be23d0 (LWP 11260)]
service.cpp 42 requestAccess Got request: QMap(("windowId", QVariant(uint, 9812) ) )
request.cpp 136 findClientApparmorProfile App ID: "unconfined"
request-manager.cpp 98 runQueue Head: OnlineAccountsUi::PanelRequest(0x894d0)
[New Thread 0xb239f3d0 (LWP 11314)]
virtual void OnlineAccounts::Plugin::registerTypes(const char*) Ubuntu.OnlineAccounts
[New Thread 0xb0dcf3d0 (LWP 11320)]
unity::action::ActionManager::ActionManager(QObject*):
 Could not determine application identifier. HUD will not work properly.
 Provide your application identifier in $APP_ID environment variable.
[New Thread 0xb03ff3d0 (LWP 11321)]
qrc:/qml/AccountsPage.qml:33:9: QML ListView: Binding loop detected for property "height"
[New Thread 0xaf2ab3d0 (LWP 11322)]
account-service-model.cpp 291 update
account-service-model.cpp 291 update
request.cpp 109 setWindow Requesting window reparenting
QWindow::fromWinId(): platform plugin does not support foreign windows.
panel-request.cpp 102 onWindowVisibleChanged true
callbacks 0xb3d5d445 0xb3d5d33d
creating surface at (0, 58) with size (768, 1222) with title 'Window 1'[New Thread 0xae57c3d0 (LWP 11323)]
[New Thread 0xadd7c3d0 (LWP 11324)]
[New Thread 0xacf893d0 (LWP 11330)]
account-service.cpp 100 setObjectHandle Accounts::AccountService(0x1d6768)
account-service.cpp 100 setObjectHandle Accounts::AccountService(0x2e23c8)
account-service.cpp 100 setObjectHandle Accounts::AccountService(0x2e2ea8)
[New Thread 0xac4a63d0 (LWP 11331)]
Detectable autorepeat not supported.

** (process:11243): WARNING **: Unable to register app: GDBus.Error:org.freedesktop.DBus.Error.InvalidArgs: Invalid application ID
account-service-model.cpp 291 update
qrc:/qml/AccountsPage.qml:63:9: QML Page: Binding loop detected for property "flickable"
[Thread 0xac4a63d0 (LWP 11331) exited]
account.cpp 60 setObjectHandle Accounts::Account(0x5755e0)
file:///home/phablet/.local/share/accounts/qml-plugins/fitbit/Main.qml: File not found
account-service.cpp 100 setObjectHandle Accounts::AccountService(0x4ba548)
account-service-model.cpp 291 update
qml: Authenticating...
../../../../lib/SignOn/connection-manager.cpp 106 setupSocketConnection p2p error: QDBusError("org.freedesktop.DBus.Error.FileNotFound", "Failed to connect to socket /run/user/32011/signond/socket: No such file or directory") 1
../../../../lib/SignOn/connection-manager.cpp 132 init Peer connection unavailable, activating service
../../../../lib/SignOn/identityimpl.cpp 96 updateState Updating state: "PendingRegistration" SignOn::IdentityImpl(0x5a4930)
../../../../lib/SignOn/identityimpl.cpp 172 storeCredentials Storing credentials
../../../../lib/SignOn/connection-manager.cpp 106 setupSocketConnection p2p error: QDBusError("org.freedesktop.DBus.Error.FileNotFound", "Failed to conne...

This now no longer works even when hitting enter, specifically still witht he fitbit plugin

Could this be relevant? upstart/dbus.log:qml: [JS] (:0) Refused to display 'https://static1.fitbit.com/tools/cookieEater' in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'.

http://paste.ubuntu.com/8097842/

Chris, is this still happening with the latest images?

Considering the crash was prior to the code refactoring, I will lower the priority of that issue, on the ground that the crasher is probably gone by now. However, I will keep it open for now, to let Chris confirm the issue is resolved for real.