Expires Header #7

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LevelbossMike opened this issue Apr 8, 2015 · 1 comment

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LevelbossMike commented Apr 8, 2015

As discussed in ember-cli-deploy/ember-cli-deploy#126 we should look into expires header and if we need to to more work to improve caching.

LevelbossMike mentioned this issue

Expires Header ember-cli-deploy/ember-cli-deploy#126

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enspandi commented Apr 8, 2015

Thanks for moving the issue!

Some more information about browser caching according to developers.google.com:

https://developers.google.com/speed/docs/insights/LeverageBrowserCaching
"We recommend a minimum cache time of one week and preferably up to one year for static assets"
https://developers.google.com/web/fundamentals/performance/optimizing-content-efficiency/http-caching#defining-optimal-cache-control-policy
"Locally cached responses are used until the resource 'expires'"

And an example response on youtube.com for their javascript files:

age:15792
cache-control:public, max-age=31536000
content-encoding:gzip
content-length:28912
content-type:text/javascript; charset=UTF-8
date:Thu, 19 Mar 2015 01:59:35 GMT
expires:Fri, 18 Mar 2016 01:59:35 GMT
last-modified:Thu, 12 Mar 2015 20:40:48 GMT
server:sffe
status:200
vary:Accept-Encoding
x-content-type-options:nosniff
x-xss-protection:1; mode=block

kyledecot mentioned this issue

Unable to use Cloudfront Compression Due to Lack of Content-Length Header #26

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