Alexandru Popescu wrote:
On 11/17/05, Matej Knopp <[EMAIL PROTECTED]> wrote:
Yes, but these tags only affects the html. As it's dynamically
generated, it's all right to always fetch the new version.
But with static images, there should be a header provided with the
image, that informs the browser, when the image was last modified.
(Last-Modified http header).
who is settings this header?
Http server is. (tomcat, jetty, apache, IIS,...)
First, the browser fetches only the header, and if the image in browser
cache is not recent enough, the images is downloaded.
But in this case, the Last-Modified header is just not there.
how have you figured this out?
I looked at the http headers that came with the image.
-Matej
thanks in advance,
./alex
--
.w( the_mindstorm )p.
-Matej
Alexandru Popescu wrote:
#: Martijn Dashorst changed the world a bit at a time by saying on
11/17/2005 9:55 PM :#
I see on the home page 'Cache-Control no-cache'. Is this there for a
special reason?
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Cache-Control" CONTENT="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="-1">
How does this affect the browser?
Martijn
afaik these headers instruct the browser to fetch the page for each hit.
I don't know how static content is treated, but this may be the cause.
./alex
--
.w( the_mindstorm )p.
On 11/17/05, Dorel Vaida <[EMAIL PROTECTED]> wrote:
Dorel Vaida wrote:
Matej Knopp wrote:
Hi. Wicket is hardly responsible for the headers, that come with your
(static) images.
I thought a little and maybe, but just maybe, the images are not cached
because of the way wicket forms the urls and everything ...
I'm sorry, I can't help you here, I've very little experience
configuring apache, nor the connector - mod_jk2.
I understood that, thanks alot, I'll investigate, still, you've
mentioned to try to "Adding LastModified header to images should help.
" and I was asking where to do that, is that a server config ?
Good luck.
-Matej
Dorel Vaida wrote:
Matej Knopp wrote:
Hi.
What does wicket have with the image? It isn't served by wicket, is
it?
Agree, unfortunately the only thing that changed from the other web
applications deliverred by the same server and this one is ... the
web framework used. It is wicket, instead of struts or anything
else. So I thought I should ask to this list, maybe someone has an
ideea.
Check your app server settings, it just seems that it's not sending
right http headers with the image.
Hmm.. Now I see that the server is Apache with mod_jk2.
So check apache configuration.
Adding LastModified header to images should help.
Where to do that ?
-Matej
Dorel Vaida wrote:
Hi all, I've deployed my first application with wicket. However, I
have a BIG annoying performance problem with it, and it is visible
just in production. We have a pretty big picture on the top of the
page, a 200k gif, which is LOADED again and again on every page,
it's not cached. On every other sites we've developed, even the
big pictures after they were loaded and cached first, they work
fine, they are not downloaded every time.
In this case, it seems that all the pictures are downloaded every
time.
The site in case is: http://www.ceramicamaria.ro/ just in case you
want to check it live. As you will see, the experience is lousy as
you need to wait tons of time for each page loading
Anybody has a clue why this is happening ? Any suggestions are
greatly appreciated, I assure you.
Thanks.
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