So, who is generating the 400 error ? Nginx, or is it the Mongrel
behind it ? Mongrel has a very pedantic parser, which itself will slam
the door on a request it considers badly formed.

ps. Appologies if you are not running rails behind nginx.

Cheers

Dave

On 10/06/2009, at 4:03 PM, snacktime wrote:

> this is nginx 0.6.34. We run some fairly high volume facebook sites
> and have had problems with 400 errors now for months. It only
> happens on one part of our site that runs inside an iframe. At
> first I thought it was cookies that were too large. I increased
> some of the buffers but that didn't appear to make any difference.
> A couple of days ago we took out all the code that was generating
> large cookies, and are still getting 400 errors. The really
> frustrating part is that nginx refuses to log the error, so we can't
> even debug it properly.
>
> This is with nginx as a reverse proxy for rails.
>
> Chris
>
> Posted at Nginx Forum: http://forum.nginx.org/read.php?2,2757,2757#msg-2757
>
>