[TophWells]

Quite possibly, yes - if you can find the page that gives "your" account information, the language often matches the location.

I should really stop poking around, but this is a fascinatingly bizarre error. Has anyone seen anything like it before?

[xj9]

I had a similar problem with a site I worked on a couple of years back. Setting headers to disable caching did the trick. Annoying, but effective.

[pbz]

Not sure how authoritative:

https://www.reddit.com/r/Games/comments/3y7maa/something_is_...

[jaxb]

Not on Steam; there was a Tomcat bug where it'd send HTTP response to wrong client: https://bz.apache.org/bugzilla/show_bug.cgi?id=57340

[busterarm]

So maybe that's why Steam store pages have been displaying for me in Korean randomly over the last two years...