I cannot make my standalone Client, pls help

I've been using hacks from this forum for a while now.
Can someone tell me why i can't download the clean .swf file from my browser? ( i'm using chrome btw, and RotMG won't start in my chrome somehow,loaded to 100% then blank)

And before someone direct me to Nilly's thread, i've been trying that too before i made this post, but i can't save the .swf file
any other way i can make my own clean .swf ? Tired of leeching

You can download it easily at ROTMG official site, but you will have to make a little modification on it, because they made a security system that does not allow ROTMG to run on external hosts.