While messing around with bing I found some odd handling of country/language settings. Doing some more digging over weekend, and it does indeed appear to be a bug that affects Chrome users. When you select a country, and then visit an alternative bing country site bing gets confused when displaying results. In the following example I selected Netherlands and then visited bing.ie) Here’s how to replicate:

1. Using Chrome head to bing.ie and then select country prefs (click on “Ireland”):
   
   Go to bing.ie (it redirects)
2. Now select “Netherlands”:
   
   Click Netherlands to set your prefs to Holland
3. Now go back to bing.ie via the address bar – your interface should now be localised to Dutch:
   
   bing.ie homepage shows Irish filters localised to Dutch (as expected)
4. Now try any search, and then check out the results page:
   
   Check out the filters – they’re all for Holland, and the results appear to be Dutch

It appears that bing’s cookie handling is a bit wonky with Chrome. When I try the above with other languages the same behaviour is replicated. Trying this in FIrefox produces the desired/expected behaviour – you can view Irish SERP in Dutch-localised interface, unlike above.

Weird bug that probably isn’t affecting too many users, and hopefully the Bing guys will fix this.