juju/juju-gui — pull request #664 by hatched (2014-11-20 20:58:39+00:00)
Title: Send null values in config and params as `null`

Now that Juju supports null configuration values the GUI needs to stop converting `null` values to "null". As a side effect all params for websocket rpc calls also send nulls for values which don't exist. This doesn't appear to have any negative side effects.