# Gzip gzip\_min\_length directives doesn't work in ajax? **URL:** \ **Category:** NGINX\ **Created:** [June 24, 2012, 10:55am UTC](https://www.ruby-forum.com/t/gzip-gzip-min-length-directives-doesnt-work-in-ajax/220894 "2012-06-24T10:55:14Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![aris](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/258eb7/32.png) [@aris](https://www.ruby-forum.com/u/aris)\ **Post date:** [June 24, 2012, 10:55am UTC](https://www.ruby-forum.com/t/gzip-gzip-min-length-directives-doesnt-work-in-ajax/220894/1 "2012-06-24T10:55:14Z")
I have the following conf http { … gzip on; gzip\_min\_length 1000; gzip\_buffers 16 64k; gzip\_http\_version 1.1; gzip\_comp\_level 6; gzip\_types text/plain application/x-javascript text/css application/xml; gzip\_vary on; … I notice that the gzip\_min\_length 1000; dirctives doesn’t word in ajax. the request header: Host 10.66.23.99 Accept-Charset GB2312,utf-8;q=0.7,_;q=0.7 (Request-Line) GET /luapp/getname?query=dsfds HTTP/1.1 Accept-Encoding gzip, deflate Connection keep-alive User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0 Cookie name=bq0xPMS+HUgGYuV7pB9f9j6l9qhcIdS3fABQDOlgsuY=; returnurl=/app/images/shadow.png Accept text/html,application/xhtml+xml,application/xml;q=0.9,_/\*;q=0.8 Accept-Language zh-cn,zh;q=0.5 the response header: (Status-Line) HTTP/1.1 200 OK Connection keep-alive Content-Encoding gzip Content-Type text/html; charset=UTF-8 Date Sun, 24 Jun 2012 08:37:05 GMT Server ngx\_openresty/1.2.1.1 Transfer-Encoding chunked Vary Accept-Encoding the url:[http://10.66.23.99/luapp/getname?query=dsfds](http://10.66.23.99/luapp/getname?query=dsfds) the return content: {“query”:“dsfds”,“suggestions”:{}} the size of return content is 35bytes,is smaller than gzip\_min\_length in the conf,but it is still gziped, the gzip resut:text/html; charset=UTF-8 : 35 bytes, gzip compressed to 55 bytes ( -57.1 % saving ) Why? I’m using nginx 1.2.1 ---
**Author:** ![lhmwzy](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/90db22/32.png) [@lhmwzy](https://www.ruby-forum.com/u/lhmwzy)\ **Post date:** [June 25, 2012, 12:11pm UTC](https://www.ruby-forum.com/t/gzip-gzip-min-length-directives-doesnt-work-in-ajax/220894/2 "2012-06-25T12:11:38Z")
Hello! On Sun, Jun 24, 2012 at 04:54:28PM +0800, lhmwzy wrote: > ``` > gzip_vary on; > > ``` > > Connection keep-alive > Content-Encoding gzip > in the conf,but it is still gziped, > the gzip resut:text/html; charset=UTF-8 : 35 bytes, gzip compressed to > 55 bytes ( -57.1 % saving ) > > Why? > I’m using nginx 1.2.1 The gzip\_min\_length directive doesn’t work if length isn’t known. Maxim D.