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https://issues.apache.org/jira/browse/HTTPCLIENT-1953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16720226#comment-16720226
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Marco Signorini commented on HTTPCLIENT-1953:
---------------------------------------------
Sorry for late response.
Chrome browser used for test.
Hit the URL [http://js.omg.neodatagroup.com/omg.js]
The first answer contains the header:
{{Cache-Control: no-cache, must-revalidate}}
The second and following requests contain the {{If-Modified-Since}}; the origin
server answers with 304 Not modified.
However, using the http apache client, all requests are sent to the origin
server without the {{If-Modified-Since}} and therefore the full content is
always downloaded.
Attached a java file with sample code.
> HTTP Response is not cached with Cache-Control: no-cache header
> ---------------------------------------------------------------
>
> Key: HTTPCLIENT-1953
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1953
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpCache
> Affects Versions: 4.5.6
> Reporter: Marco Signorini
> Priority: Major
>
> When the HTTP response contains the Cache-Control: no-cache header, the
> response should be cached and then validated against the origin server before
> returning it.
> Now the HTTP response is never cached.
> [https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching]
> [https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control]
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