Have you tried another browser yet, starting with Chrome?
I have Chrome set to the settings you recommend. No luck. It gets 2/3rds of the way across the load bar and sits for hours. If I change to another screen it stops wherever it is. It's just crap. Had VIP status for another day, and I can't get into the game for hours on end. Plus it runs worse with the new update. Good job testing it out guys. What a waste.