[trunk] WebUI unavailable due to new version of AngularJS

[Brendan Donegan]

A new version of AngularJS was made available in Yakkety. This new version dropped Ubuntu delta, and now is build-depending on universe packages (node-uglify). This could be the reason that's impacting MAAS.

On Yakkety, when we navigate to any of the following tabs - Nodes/DNS/Networks, we see the following error:

Connection lost, reconnecting...Unable to connect to: ws://192.168.100.10/MAAS/ws

It's notable that these tabs are all implemented in AgularJS and the other ones that do work use YUI.

If we look at regiond.log then as soon as we navigate to one of those tabs we start seeing:

2016-07-28T15:54:12+0100 [_GenericHTTPChannelProtocol,60,127.0.0.1] Opening connection with IPv4Address(TCP, '127.0.0.1', 44518)
2016-07-28T15:54:12+0100 [_GenericHTTPChannelProtocol,60,127.0.0.1] Closing connection: <STATUSES=PROTOCOL_ERROR> ('Invalid CSRF token.')
2016-07-28T15:54:17+0100 [_GenericHTTPChannelProtocol,70,127.0.0.1] Opening connection with IPv4Address(TCP, '127.0.0.1', 44524)
2016-07-28T15:54:17+0100 [_GenericHTTPChannelProtocol,70,127.0.0.1] Closing connection: <STATUSES=PROTOCOL_ERROR> ('Invalid CSRF token.')
2016-07-28T15:54:22+0100 [_GenericHTTPChannelProtocol,71,127.0.0.1] Opening connection with IPv4Address(TCP, '127.0.0.1', 44528)
2016-07-28T15:54:22+0100 [_GenericHTTPChannelProtocol,71,127.0.0.1] Closing connection: <STATUSES=PROTOCOL_ERROR> ('Invalid CSRF token.')
2016-07-28T15:54:27+0100 [_GenericHTTPChannelProtocol,61,127.0.0.1] Opening connection with IPv4Address(TCP, '127.0.0.1', 44532)
2016-07-28T15:54:27+0100 [_GenericHTTPChannelProtocol,61,127.0.0.1] Closing connection: <STATUSES=PROTOCOL_ERROR> ('Invalid CSRF token.')