Events and DevKey

[mymedlab]

I can't get any events to fire while developing on my local machine. When I open up chrome dev tools, I can manually type in the commands to control the player- load, setDevKey, etc. - but my callback never gets called:

function livestreamPlayerCallback(event) {
alert(event);
}

Further, what is the purpose of the devKey? Without even setting it, I have access to the players APIs through the console. I can load the channel and start playing without entering the devKey. This is using the HTML API.

*update*
Seems the events not firing was a scope issue that is now resolved, but still curious as to what the devKey provides in terms of additional API access.