I am not sure how to follow your 1,2,3,4 steps but what I did is to load the page on Firefox, Chrome and IE11 and I got the following results:
-On Firefox the game doesn't load, unless I hit reload page. After that everything works ok. BUT, if I reload again, I get a black screen. The music plays and if I click inside the black screen, the music stops but nothing else happen.
-On Chrome everything works fine.
-On IE I get exactly the thing as with Firefox...
I hope that helps in anyway.