Cannot make a simple jenkins.view work "out of the box"

[sxa]

item	info	notes
node version	v8.10.0	output from node --version
npm version	5.6.0	output from npm --version
mozaik-ext-jenkins version	1.2.0	available in project's package.json
jenkins version	1.3.3	your jenkins server version
mozaik version	1.4.4	available in project's package.json
mozaik-demo version	latest on github today	version of the demo used, depends on which method you used to setup your Mozaïk dashboard
component		name of the extension's component or client if it's related to the extension's client
browser	Chromium	browser used, applyable if the issue is not related to the client

Expected behavior

Display of a jenkins widget

Actual behaviour

"Uncaught Error: No component defined for type 'jenkins.view' in the debug console and nothing displayed on the dashboard. I'm sure this is something trivial that's missing that will be obvious to a seasoned Mozaik user, but it's not immediately clear as someone who's never used it before. I had assumed that the API endpoints would all show up automatically after installing the jenkins module.

Steps to reproduce

• git clone http://github.com/plouc/mozaik-demo
• cd mozaik-demo
• npm install
• cd node_modules
• npm install mozaik-ext-jenkins
• Edit config.js to add section pointing to my server
• Edit grid replacing the entry for x0y2 with the following::

  type: jenkins.view,
  view: 'Tooling',
  columns: 1, rows: 1, x: 0, y: 2

  Also one further question - is it valid to leave the user/password options unset to allow the module to access a jenkins instance which can be viewed without authentication?