Please use a browser that supports HTML5
I am warning you now, the simulator works best on Google Chrome. if you use any other browser, you are likely to not get the same experience as chrome.
I do not recommend IE but IE10 can be used,
(I have something against IE as a browser.)
I have added HTML5 caching to the browser to get the best results, but please wait till the page fully loads then you can press ‘Launch Simulator’
And again, if you want to make it better. Fork it on Github.
If you find any issues this time, you know where to go.
(there is cake in the simulator waiting for you.)