If you want to play this game on a laptop (as opposed to desktop), you need a razor blade pro.


On a serious note, it's probably crashing your ram due to excessive RAM usage. It start at around 500-600MB but can grow more or less indefinitely due to memory leak. Most chromebooks are very lacking on that front. Remember, the rest of your system needs RAM too, so usually at most your flash/browser will only get at most 75% of your total RAM, assuming you don't have anything else intensive running.
Note that a number of other website also tax RAM. This is especially so if they run bad ads, some of them are horrible for your resource. So if you are playing the game and browsing web at the same time, bad things can happen.

I've tried using Chrome/Safari/Firefox... and out of these 3, chrome seems to run the slowest, even after clearing cache. Chrome seems to be pretty ram intensive.

https://s7.postimg.org/gc09avi63/Screenshot_4.png
https://s30.postimg.org/x48jqabs1/Screenshot_6.png
If u have the same spec as me, switch to the client. I always lag/crashed without client.

From what I head, you can't install client on chromebooks, they are not real computers.....