There is a quicker fix for it (if you are running from a laptop). Go to your Google Chrome shortcut on your desktop (if you don't have one make one), right click it an look for "Run with Graphics Processor" and choose the one that is not Integrated Graphics. Once it opens, the game will work.
I have a laptop with two GPU (intel integrated graphics and radeon HD6770m). I have disabled the dual gpu thing from the bios so I always use the dedicated 6770m. However I still have the black screen problem.