I have my site which is using nginx, and testing site with header testing tools e.g. http://www.webconfs.com/http-header-check.php but every time it says 400 bad request below is the out put from the tool. Though all my pages load perfectly fine in browser and when I see in chrome console it says status code 200OK.

HTTP/1.1 400 Bad Request => 
Server => nginx
Date => Fri, 07 Sep 2012 09:40:09 GMT
Content-Type => text/html
Content-Length => 166
Connection => close

I really don't understand what is the problem with my server config?

A bit of googling suggests to increase the buffer size using, and I increased it to following:

large_client_header_buffers 4 16k;

The same results persist.

Can some one guide me to the right direction?

nginx
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