Provide Expires header with Cache-Control: max-age
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Key: GEOS-2300
URL: http://jira.codehaus.org/browse/GEOS-2300
Project: GeoServer
Issue Type: Improvement
Components: WMS
Affects Versions: 1.6.5
Reporter: Ivan S. Dubrov
Assignee: Andrea Aime
For better compatibility with HTTP/1.0 clients, I suggest adding Expires:
header with max-age. It's perfectly fine with RFC (see
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.3).
Something like this added to GetMapResponse:
Date expires = new Date();
expires.setTime(date.getTime() + maxAge * 1000);
DateFormat format = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z",
Locale.US);
format.setTimeZone(TimeZone.getTimeZone("GMT"));
responseHeaders.put("Expires", format.format(expires));
This is not a big deal, but will improve interaction with cache servers that
use HTTP/1.0.
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