odd logout behaviour

This is a test environment for a (potential) new client,
joomla 3.4.1 >> url: http://jml_demo.under-construction.co.nz,
moodle 2.7.2+ >> url: http://mdl_demo.under-construction.co.nz,
joomdle 1.0.1.
installation and basic configuration seem to be ok but I have odd behaviour when it comes to logging out.

On the Joomla site I've put the the 'training' section behind a login, so users have to be logged in to see the course list. Have enabled 'Use redirectless SSO' and 'use redirectless logout' so that this works as required.

The problem is:
Once a user has selected a course, thereby being re-directed to the moodle site, and then log out they get a 404 error with the following url in the address bar: http://mdl_demo.under-construction.co.nz/components/com_joomdle/views/wrapper/getout.php

Is it possible to just close the browser tab, as the joomla site is still open in the original tab? or - ideally, have them move from the joomla site to the moodle site and back again within the same (parent) tab.

In theory, redirecless login and logout do not work when joomla and moodle and on different domains. Disable those options and test.

Ok, thanks for the info Antonio.

Where can I find documentation on how to set up joomla and moodle on the same domain?

It is the same set of documentation on the wiki. The only differences are: 1) The URL will change and 2) what Antonio has mentioned above.

Specifically, assuming Joomla is in the root
www.mydomain.com
www.mydomain.com/moodledirecotry