Should CORS be abandoned?

I think that CORS design is completely unnecessary, stupid, and so should be abandoned. I have laid down my arguments, if you think you know this issue pretty well, would you please look at it, and comment it.

https://github.com/jackzhp/CORS-should-retire
or
http://blog.sina.com.cn/s/blog_93b70ae70102wxe8.html

Hope you can contribute to the change!
