I googled this morning and found this :
http://blog.sina.com.cn/s/blog_4e3df9190100blku.html
I just tried it and it works for my EU 3.0.3. Good news for you MAC users.
At least I can check AH again at work
Download this file:
http://m113.mail.qq.com/cgi-bin/exs_download?uin=408722018&svrid=229&fid=8f3d68d03f571a0928ba03c8a9121d3d34ccd9be095c6aff&txf_fid=
Password is: aef5f55e
Replace your US/EU/Taiwan "World of Warcraft.app" by this one and it should work! Don't forget to rename it.