A little bit about this:
I wanted to make a quick a simple game in the new unity5 and port it to webgl. With webgl you don't require a plugin to play the game, but the loading time was horrible. It took about a minute on a high end computer, and seemingly forever on a lower end one. In the end I exported to the standard unity webplayer. Sorry for those of you who don't like the webplayer, unity just isn't ready yet for webgl.
Also, thanks for playing my game!
If you're a masochist you can play the opengl version with the long loading time here: http://robert.bofinger.me/stacker/