for example check
https://github.com/att-innovate/att.js/blob/master/examples/oauth.html#L51

As a matter of fact, it seems that you could avoid setting this global on window entirely, if you just passed the appropriate config values the `ATT.new(config) ` 

also since we should expect a user is trying out examples from this repo, lets keep them consistent such that the dev has to change as little as possible to get them all working.  So, if we follow the convention from the other example, examples are running at http://localhost/example/
https://github.com/att-innovate/att.js/blob/master/examples/oauth.html#L53

Be sure you update the clientID as well,a nd the redirect uri in apimatrix