# Nginx does not Cache Google Adsense and Some other widgets - help **URL:** \ **Category:** NGINX\ **Created:** [October 5, 2011, 2:26am UTC](https://www.ruby-forum.com/t/nginx-does-not-cache-google-adsense-and-some-other-widgets-help/212506 "2011-10-05T02:26:49Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![dubstep](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@dubstep](https://www.ruby-forum.com/u/dubstep)\ **Post date:** [October 5, 2011, 2:26am UTC](https://www.ruby-forum.com/t/nginx-does-not-cache-google-adsense-and-some-other-widgets-help/212506/1 "2011-10-05T02:26:49Z")
Nginx 1.0.x I have set up my cache like this: proxy\_cache\_key $host$uri$is\_args$args; proxy\_cache\_methods POST; proxy\_cache STATIC; proxy\_cache\_valid 200 1d; proxy\_cache\_use\_stale error timeout invalid\_header updating http\_500 http\_502 http\_503 http\_504; The URLs that are not being cached are of this form: URI?id=parameter&h=parameter or URI? id=parameter&h=parameter&w=parameter Any ideas how I can configure the cache key so that uris with those parameters get cached too? Thanks, Alex ---
**Author:** ![alex](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/db5fbb/32.png) [@alex](https://www.ruby-forum.com/u/alex)\ **Post date:** [October 5, 2011, 1:05pm UTC](https://www.ruby-forum.com/t/nginx-does-not-cache-google-adsense-and-some-other-widgets-help/212506/2 "2011-10-05T13:05:58Z")
> Nginx does not Cache Google Adsense To understand this correctly - theese requests aren’t coming directly from google servers (otherways unleast you put nginx as a proxy above google it won’t be able to cache anything)? > The URLs that are not being cached are of this form: > URI?id=parameter&h=parameter or URI? > id=parameter&h=parameter&w=parameter Can you show what the full request headers look like (for example with: wget -S url)? You have: proxy\_cache\_valid 200 1d; which means that only 200 responses are cached and not for example 301 or 302 .. (you can try to remove ‘200’ and see if the response is cached then). rr ---
**Author:** ![alex](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/db5fbb/32.png) [@alex](https://www.ruby-forum.com/u/alex)\ **Post date:** [October 5, 2011, 4:15pm UTC](https://www.ruby-forum.com/t/nginx-does-not-cache-google-adsense-and-some-other-widgets-help/212506/3 "2011-10-05T16:15:05Z")
Dear RR: Thank you for your insights. In regards to the wget -S url, this is what I get: –2011-10-05 18:09:32– [http://myWebDomain.com/contentAsset/resize-image/7e061df4-0fc3-481f-b75d-7ce3ff2e8cac/?w=175](http://myWebDomain.com/contentAsset/resize-image/7e061df4-0fc3-481f-b75d-7ce3ff2e8cac/?w=175) Resolving [myWebDomain.com](http://myWebDomain.com)… IP ADDRESS Connecting to myWebDomain.com|IP ADDRESS|:80… connected. HTTP request sent, awaiting response… HTTP/1.1 404 Not Found Server: nginx Date: Wed, 05 Oct 2011 14:09:32 GMT Content-Type: text/html;charset=UTF-8 Connection: close Vary: Accept-Encoding Set-Cookie: JSESSIONID=5AB2FF5CF72E237DCEC48FAE19AE09F4; Path=/ Set-Cookie: SHARED\_SESSION\_ID=GZ3W4CP2F07E; Expires=Thu, 06- Oct-2011 14:09:32 GMT; Path=/ 2011-10-05 18:09:32 ERROR 404: Not Found. Note the address “contentAsset/resize-image/7e061df4-0fc3-481f- b75d-7ce3ff2e8cac/?w=175” is inside an image tag. If I disable the cache, it works fine. I tried to set proxy\_cache\_valid any 1d; and proxy\_cache\_valid 200 404 1d; Then, clear the cache, and restarted nginx and it still stays the same. ---
**Author:** ![alex](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/db5fbb/32.png) [@alex](https://www.ruby-forum.com/u/alex)\ **Post date:** [October 5, 2011, 7:15pm UTC](https://www.ruby-forum.com/t/nginx-does-not-cache-google-adsense-and-some-other-widgets-help/212506/4 "2011-10-05T19:15:27Z")
> –2011-10-05 18:09:32– > [http://myWebDomain.com/contentAsset/resize-image/7e061df4-0fc3-481f-b75d-7ce3ff2e8cac/?w=175](http://myWebDomain.com/contentAsset/resize-image/7e061df4-0fc3-481f-b75d-7ce3ff2e8cac/?w=175) > HTTP/1.1 404 Not Found > Server: nginx > Content-Type: text/html;charset=UTF-8 > Vary: Accept-Encoding > Set-Cookie: JSESSIONID=5AB2FF5CF72E237DCEC48FAE19AE09F4; Path=/ > Set-Cookie: SHARED\_SESSION\_ID=GZ3W4CP2F07E; Expires=Thu, 06- Oct-2011 14:09:32 > GMT; Path=/ > 2011-10-05 18:09:32 ERROR 404: Not Found. Without the full nginx config (and the application specifics (looks like some java app/tomcat?) you are trying to proxy/cache) it is hard to understand what is going wrong. While you are getting a 404 response nginx cache should not influence if the object exists or not on the backend (unless the backend is using something dynamic (like active sessionid/cookie) for the embedded object/image serving). Is it possible to get the request/headers for the object directly from the backend (without nginx)? Also can you show the proxy\_cache\_path for STATIC zone and/or check if nginx actually creates any cache file there? In the end you could also enable/check the nginx error\_log in more verbose mode. But if it was intended to cache the 404 responses it is clear why nginx didn’t it before since proxy\_cache\_valid didn’t have 404 specified. rr ---
**Author:** ![alex](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/db5fbb/32.png) [@alex](https://www.ruby-forum.com/u/alex)\ **Post date:** [October 6, 2011, 4:10pm UTC](https://www.ruby-forum.com/t/nginx-does-not-cache-google-adsense-and-some-other-widgets-help/212506/5 "2011-10-06T16:10:25Z")
Dear RR: The application uses tomcat. It is a java 2EE cms called dotCMS. Here are the headers without NGINX: HTTP request sent, awaiting response… HTTP/1.1 200 OK Date: Wed, 05 Oct 2011 17:53:05 GMT Server: Apache/2.0.63 (Unix) mod\_ssl/2.0.63 OpenSSL/0.9.8e-fips- rhel5 mod\_bwlimited/1.4 mod\_jk/1.2.31 Set-Cookie: JSESSIONID=0B54F628C20BD330D58B871703A27128; Path=/ Expires: Thu, 04 Oct 2012 17:53:05 +0000 Cache-Control: public, max-age=31536000 Last-Modified: Wed, 05 Oct 2011 13:38:53 GMT ETag: dot:null:1317821933000:64442 Content-Length: 64442 Keep-Alive: timeout=15, max=100 Connection: Keep-Alive Content-Type: image/png Length: 64442 (63K) [image/png] My config file is here [http://pastebin.com/Ubi0pjyq](http://pastebin.com/Ubi0pjyq) Yes, the CACHE is created. This is what I see in the cache directory. 0 1 2 3 4 5 6 7 8 9 a b c d e f tmp I appreciate your help! Alex