# Rails asset cache **URL:** \ **Category:** Rails\ **Created:** [July 23, 2010, 11:52am UTC](https://www.ruby-forum.com/t/rails-asset-cache/192080 "2010-07-23T11:52:50Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![tom-mac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/bc8723/32.png) [@tom-mac](https://www.ruby-forum.com/u/tom-mac)\ **Post date:** [July 23, 2010, 11:52am UTC](https://www.ruby-forum.com/t/rails-asset-cache/192080/1 "2010-07-23T11:52:50Z")
I have a of line code like \<%= stylesheet\_link\_tag “styles”,:cache =\> “cache/styles” %\> ``` And it produces source as ``` ``` config.action_controller.perform_caching = true ``` My concern is what is 1279620123 after question mark(?) above. If such a random number always appended, whether caching in browser happens or not?Please give me a good idea Thanks Tom ---
**Author:** ![tom-mac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/bc8723/32.png) [@tom-mac](https://www.ruby-forum.com/u/tom-mac)\ **Post date:** [July 23, 2010, 12:21pm UTC](https://www.ruby-forum.com/t/rails-asset-cache/192080/2 "2010-07-23T12:21:18Z")
On 23 July 2010 10:52, Tom M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > My concern is what is 1279620123 after question mark(?) above. If such a > random number always appended, whether caching in browser happens or > not?Please give me a good idea It’s the timestamp when the file was last changed (or the last file if you list multiple stylesheets in stylesheet\_link\_tag). That way browsers can cache it long term and it will automatically change if you change one of the files during a new deployment. Cheers, Andy ---
**Author:** ![tom-mac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/bc8723/32.png) [@tom-mac](https://www.ruby-forum.com/u/tom-mac)\ **Post date:** [July 26, 2010, 7:42am UTC](https://www.ruby-forum.com/t/rails-asset-cache/192080/3 "2010-07-26T07:42:58Z")
Hi Again I am facing a problem. I am using firefox with firebug.A portion of my code like \<%= stylesheet\_link\_tag “styles”,“home”, :cache =\> “cache/all” %\> Now in my local machine from firebug under net tab I disabled “Browser cache” .Then result I got like GET home [http://localhost:3000/home](http://localhost:3000/home) 200 OK localhost:3000 14.4 KB (?) … GET styles.css?1279620123 [http://localhost:3000/stylesheets/styles.css?1279620123](http://localhost:3000/stylesheets/styles.css?1279620123) 200 OK … Again from local machine I enabled “Browser cache” and got result like(Only the below line I got) GET home [http://localhost:3000/home](http://localhost:3000/home) 304 Not Modified localhost:3000 14.4 KB … But the above same procedure when I did from another machine which is not local, I got the same result for both the steps. Caching did not happen. ``` I got 200 OK for both steps. I am running in staging mode. Please ``` help me to resolve this Thanks Tom ---
**Author:** ![tom-mac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/bc8723/32.png) [@tom-mac](https://www.ruby-forum.com/u/tom-mac)\ **Post date:** [July 27, 2010, 12:49pm UTC](https://www.ruby-forum.com/t/rails-asset-cache/192080/4 "2010-07-27T12:49:48Z")
Sorry, no idea. (just to let you know that you’re not being ignored it’s just likely that no-one has an answer for you, this generally works fine for me). – Andy J. [http://andyjeffries.co.uk/](http://andyjeffries.co.uk/)#rubyonrails #mysql #jquery Registered address: 64 Sish Lane, Stevenage, Herts, SG1 3LS Company number: 5452840 ---
**Author:** ![tom-mac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/bc8723/32.png) [@tom-mac](https://www.ruby-forum.com/u/tom-mac)\ **Post date:** [July 27, 2010, 6:35pm UTC](https://www.ruby-forum.com/t/rails-asset-cache/192080/5 "2010-07-27T18:35:13Z")
I development mode, cache is disabled. ---
**Author:** ![tom-mac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/bc8723/32.png) [@tom-mac](https://www.ruby-forum.com/u/tom-mac)\ **Post date:** [July 27, 2010, 6:49am UTC](https://www.ruby-forum.com/t/rails-asset-cache/192080/6 "2010-07-27T06:49:53Z")
Hi Could anybody please clarify my doubt? Thanks