missing Content-Length in nginx response

[Ruslan Dautkhanov]

Hello,

I have problems in a transition from Apache to nginx.

There are 2 nginx servers working together:
 nginx (balancing, proxy) -> another nginx -> static files and php-fpm

Pages that are loaded through ajax doesn't show up.

I checked through Firebug and the only differences are in following
response headers
1. Transfer-Encoding chunked    (presents only in Nginx response)
2. Content-Length 571    (presents only in Apache response)...

How I can force nginx to work correctly here? Please see full dump of
headers below.

nginx 0.8.54
Tried to switch off gzip - it didn't affect this issue at all.
ssl is not used in this configuration.
CentOS 5.5.

I appreciate any information regarding this issue

Best regards,
Ruslan Dautkhanov


Nginx, doesn't work correctly:
--------------------------------
=== Response Headers
Server nginx
Date Thu, 14 Apr 2011 07:33:14 GMT
Content-Type text/html
Transfer-Encoding chunked
Connection keep-alive
X-Powered-By PHP/5.3.6
Set-Cookie PHPSESSID=790f5bfc9113be4f9ea34a6744aca983; path=/
ExpiresThu, 19 Nov 1981 08:52:00 GMT
Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragmano-cache
Content-Encoding gzip

=== Request Headers
Host *****
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0) Gecko/20100101
Firefox/4.0
Accept */*
Accept-Languag een-us,ru;q=0.7,en;q=0.3
Accept-Encoding gzip, deflate
Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive 115
Connection keep-alive
Content-Type application/x-www-form-urlencoded
Referer http://www.*****/
Origin http://www.*****

Another server, Apache:
--------------------------------
=== Response Headers
Date Thu, 14 Apr 2011 07:26:40 GMT
Server Apache/2
X-Powered-By PHP/5.2.14
ExpiresThu, 19 Nov 1981 08:52:00 GMT
Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache
Vary Accept-Encoding,User-Agent
Content-Encoding gzip
Content-Length 571
Keep-Alive timeout=1, max=100
Connection Keep-Alive
Content-Type text/html

=== Request Headers
Host *****
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0) Gecko/20100101
Firefox/4.0
Accept*/*
Accept-Language en-us,ru;q=0.7,en;q=0.3
Accept-Encoding gzip, deflate
Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive115
Connection keep-alive
Content-Type application/x-www-form-urlencoded
X-Requested-With XMLHttpRequest
Referer http://*****/