Out of curiosity, I decided to paste the code into jsbeautifier.org. Line 6 of the result:

    function bagofholding() {};

The only other references to it much further down in the file:

    if (!p.whenReady) p.whenReady = bagofholding;
    if (!p.onMessage) p.onMessage = bagofholding;

If you Google for "bagofholding" (without quotes), the second result is this wikipedia article [1]:

A bag of holding is a fictional magical item in the Dungeons & Dragons roleplaying game, capable of containing objects larger than its own size. Since its introduction, it has appeared in other roleplaying games and media.

[1] http://en.wikipedia.org/wiki/Bag_of_holding

Also isn't https://... which gives a cert error in Chrome.

Which doesn't seem to be loading for me.

Edit: nevermind, retried a few times and it's ok now