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| author | Vijay Dev <vijaydev.cse@gmail.com> | 2012-09-01 23:51:23 +0530 |
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| committer | Vijay Dev <vijaydev.cse@gmail.com> | 2012-09-01 23:51:23 +0530 |
| commit | a6674991037fc360c7a72e7c28eec448f0231a3e (patch) | |
| tree | f31b246cf779b8a09b4bc1d0db132c0e712d732b /guides/source/asset_pipeline.textile | |
| parent | 7f800b4d69c0750bb47989027580299751a22616 (diff) | |
| parent | 831b814a8778aad0d038aab550b7d405d4a69d37 (diff) | |
| download | rails-a6674991037fc360c7a72e7c28eec448f0231a3e.tar.gz rails-a6674991037fc360c7a72e7c28eec448f0231a3e.tar.bz2 rails-a6674991037fc360c7a72e7c28eec448f0231a3e.zip | |
Merge branch 'master' of github.com:lifo/docrails
Diffstat (limited to 'guides/source/asset_pipeline.textile')
| -rw-r--r-- | guides/source/asset_pipeline.textile | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/guides/source/asset_pipeline.textile b/guides/source/asset_pipeline.textile index e385ec4f17..2a15e95282 100644 --- a/guides/source/asset_pipeline.textile +++ b/guides/source/asset_pipeline.textile @@ -70,11 +70,11 @@ The query string strategy has several disadvantages: <ol> <li> - <strong>Not all caches will reliably cache content where the filename only differs by query parameters</strong>.<br> + <strong>Not all caches will reliably cache content where the filename only differs by query parameters</strong>.<br /> "Steve Souders recommends":http://www.stevesouders.com/blog/2008/08/23/revving-filenames-dont-use-querystring/, "...avoiding a querystring for cacheable resources". He found that in this case 5-20% of requests will not be cached. Query strings in particular do not work at all with some CDNs for cache invalidation. </li> <li> - <strong>The file name can change between nodes in multi-server environments.</strong><br> + <strong>The file name can change between nodes in multi-server environments.</strong><br /> The default query string in Rails 2.x is based on the modification time of the files. When assets are deployed to a cluster, there is no guarantee that the timestamps will be the same, resulting in different values being used depending on which server handles the request. </li> <li> @@ -473,6 +473,7 @@ Precompiled assets exist on the filesystem and are served directly by your web s For Apache: <plain> +# The Expires* directives requires the Apache module +mod_expires+ to be enabled. <LocationMatch "^/assets/.*$"> # Use of ETag is discouraged when Last-Modified is present Header unset ETag |