Master

[miyconst]

Hello!

I have fixed the issue #16.

Please review and accept my changes.

[MaxArt2501]

This can't be merged: runGlobalLoop is meant to be called once (then it calls itself), when there are objects to be observed. In order to minimize overhead, the "global loop" that performs the checks on the properties must be only one.
Moreover, starting a new loop every time an handler is attached deliver the current changes synchronously.

I already have the solution for #16, I'll push it later. If you need it ASAP, it's basically two lines later:

doObserve = function(object, handler, acceptList) {
    var data = observed.get(object);

    if (data) {
        performPropertyChecks(data, object); // <- fixes #16
        setHandler(object, data, handler, acceptList);
    } else {

Thank you for your interest, anyway. I'll let you add some thoughts, but if there's nothing else I'll close this PR.

[miyconst]

Sure, if you have the solution, then close this PR. Just add the unit test for the issue, you can copy it from my branch.

[MaxArt2501]

Closing as per 5f2909a.