Caching static content

[ju...@entory.com]

Hello

How to set the HTTP-Header Cache-Control:max-age=3600 in the Response of an
image file?

Here I will describe what I did:

I implemented a  Filter that added the header
      response.setHeader("Cache-Control", "max-age=3600");

This works, but not in every case. The first request for an image, that
return HTTP Code 200 (OK) and the image itself, the header is NOT set. The
second or third request for the same image return Code 304 (Not modified),
the header contains Cache-Control:max-age=3600.

Is there a dependency to the HTTP return code? How to supress the second
and third requests?

Regards,
Jürgen Dufner



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