I can say, the site use the last language in the header instead of the first lanugage(which it should). For example:
If the header is: accept-language: en,zh-CN;q=0.9,zh;q=0.8,zh-TW;q=0.7 Then it will redirect me to tranditional Chinese page because zh-TW is the last one.
if the header is: accept-language: en,zh-CN;q=0.9,zh;q=0.8,zh-TW;q=0.7,ja;q=0.6 Then it redirects me to Japanese page. So, they need to fix this...
I can say, the site use the last language in the header instead of the first lanugage(which it should). For example:
If the header is:
accept-language: en,zh-CN;q=0.9,zh;q=0.8,zh-TW;q=0.7
Then it will redirect me to tranditional Chinese page because zh-TW is the last one.
if the header is:
accept-language: en,zh-CN;q=0.9,zh;q=0.8,zh-TW;q=0.7,ja;q=0.6
Then it redirects me to Japanese page.
So, they need to fix this...