In the Gronk UI, the playlist page reloads every 30 seconds. However, all of the inlined images on it reload too, and that's annoying. I want the HTML to reload (with If-Modified-Since), but I want the browser to realize that it doesn't have to hit the server at all about the images.
I have attempted to set the HTML to expire "now" and the GIFs to expire "in a week". But Mozilla and Firefox reload the GIFs every time they reload the HTML: every 30 seconds, half a dozen HTTP requests are made instead of just one, and sometimes it causes visible flicker on the images.
Is there really, still, no way to do this?
My Apache .htacess file says: <LJ-CUT text=" --More--(34%) ">
- <Files playlist.html>
ExpiresActive On
ExpiresByType text/html A0
</Files>
<Files *.gif>
ExpiresActive On
ExpiresByType image/gif A604800
</Files>
Yielding the headers:
- % wget -qsO- http://.../playlist.html
- HTTP/1.1 200 OK
Date: Thu, 05 May 2005 22:09:23 GMT
Server: Apache
Last-Modified: Thu, 05 May 2005 22:07:11 GMT
ETag: "1beac-30ca-31fd21c0"
Accept-Ranges: bytes
Content-Length: 12490
Cache-Control: max-age=0
Expires: Thu, 05 May 2005 22:09:23 GMT
Connection: close
Content-Type: text/html; charset=iso-8859-1
<HTML>
<HEAD>
<META HTTP-EQUIV="Refresh" CONTENT="30">
...
- HTTP/1.1 200 OK
Date: Thu, 05 May 2005 22:09:23 GMT
Server: Apache
Last-Modified: Thu, 06 Jan 2000 05:29:16 GMT
ETag: "6b982-56-69f96300"
Accept-Ranges: bytes
Content-Length: 86
Cache-Control: max-age=604800
Expires: Thu, 12 May 2005 22:09:23 GMT
Connection: close
Content-Type: image/gif
GIF89a ...
Please don't suggest that I rewrite it all using XMLHttpRequest or Java or Flash or whatever. Obviously if I were willing to do that, I'd have done it already.
