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increase http header EXPIRES for css and images in DefaultServlet

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to increase browser cache hits for not changing content
This commit is contained in:
reger 2015-12-26 17:35:46 +01:00
parent 6d54eb3d36
commit 9da1712a31
1 changed files with 4 additions and 4 deletions
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8
source/net/yacy/http/servlets/YaCyDefaultServlet.java
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@ -794,9 +794,9 @@ public class YaCyDefaultServlet extends HttpServlet {
long now = System.currentTimeMillis();
response.setDateHeader(HeaderFramework.LAST_MODIFIED, now);
if (target.endsWith(".css")) {
response.setDateHeader(HeaderFramework.EXPIRES, now + 4000); // expires in 4 seconds (which is still too often)
response.setDateHeader(HeaderFramework.EXPIRES, now + 3600000); // expires in 1 hour (which is still often, others use 1 week, month or year)
} else if (target.endsWith(".png")) {
response.setDateHeader(HeaderFramework.EXPIRES, now + 1000); // expires in 1 seconds (reduce heavy image creation load)
response.setDateHeader(HeaderFramework.EXPIRES, now + 60000); // expires in 1 minute (reduce heavy image creation load)
} else {
response.setDateHeader(HeaderFramework.EXPIRES, now); // expires now
}
@ -858,8 +858,8 @@ public class YaCyDefaultServlet extends HttpServlet {
result.close();
return;
}
if (yp.isStatic()) {
response.setDateHeader(HeaderFramework.EXPIRES, now + 600000); // expires in ten minutes
if (yp.isStatic()) { // static image never expires
response.setDateHeader(HeaderFramework.EXPIRES, now + 3600000); // expires in 1 hour
}
} else if (tmp instanceof Image) {
final Image i = (Image) tmp;