This can also be a problem in chat app. I used en-US on windows (which defaulted to the zh variant) and someone else used ja-JP and I was wondering why the character was different. Took a while to notice that we were seeing two different things on our screens.
We also have a website about a Japanese game using a Japanese font except for 0x9bd6. The font's 0x9bd6 is the CN variant and its 0xe001 is the JP variant of 0x9bd6. Fun times.
Like others said, on the web, you pretty much have to manually assign lang to every single thing. We just added support for CN/TW/KR text. I should come back and check 0x9bd6 in the other versions ...
We also have a website about a Japanese game using a Japanese font except for 0x9bd6. The font's 0x9bd6 is the CN variant and its 0xe001 is the JP variant of 0x9bd6. Fun times.
Like others said, on the web, you pretty much have to manually assign lang to every single thing. We just added support for CN/TW/KR text. I should come back and check 0x9bd6 in the other versions ...