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https://issues.apache.org/jira/browse/TAP5-2275?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thiago H. de Paula Figueiredo reassigned TAP5-2275:
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Assignee: Thiago H. de Paula Figueiredo
> invalid caching response headers
> --------------------------------
>
> Key: TAP5-2275
> URL: https://issues.apache.org/jira/browse/TAP5-2275
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-kaptcha
> Affects Versions: 5.3.7
> Reporter: Ilya Obshadko
> Assignee: Thiago H. de Paula Figueiredo
>
> please check this issue at Google Code:
> https://code.google.com/p/kaptcha/issues/detail?id=72
> There are two subsequent calls to setHeader() and second call is overriding
> the first one (that is already mentioned in code comments). Either support
> for addHeader () is needed in Response, or we need to inject
> HttpServletResponse directly.
> response.setDateHeader("Expires", 0);
> // Set standard HTTP/1.1 no-cache headers.
> response.setHeader("Cache-Control", "no-store, no-cache,
> must-revalidate");
> // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
> response.setHeader("Cache-Control", "post-check=0, pre-check=0");
> // Set standard HTTP/1.0 no-cache header.
> response.setHeader("Pragma", "no-cache");
> Expires: 0 is still enough for all browsers except Firefox, which doesn't
> reload the image, and the whole component becomes unusable.
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