Solved: website page Loading questions - Page 2

Mudley · 29-May-2008, 11:49 PM **#16**

nice call on the cacheviewer!
looks like it even works with ff3

tomdkat · 29-May-2008, 11:50 PM **#17**

Quote:

Originally Posted by Mudley

browsers cache images, css files, and js files

I've got some HTML files in my Firefox cache as well.

Unfortunately, CacheViewer doesn't work with Firefox 3rc1 (yet).

Peace...

Mudley · 30-May-2008, 12:14 AM **#18**

Quote:

Originally Posted by tomdkat

I've got some HTML files in my Firefox cache as well.

Unfortunately, CacheViewer doesn't work with Firefox 3rc1 (yet).

Peace...

left out the html cuz i didn't want to freak him out :P

my bad about the ff3, i saw 3.0...but didn't realize it was 3.0pre

i use ie7 mostly

skyhigh007 · 30-May-2008, 12:53 PM **#19**

Here's the Response Header:

Response Headers
Date Fri, 30 May 2008 16:48:42 GMT
Server Apache/2.0.63 (Unix) mod_ssl/2.0.63 OpenSSL/0.9.8b PHP/5.2.6 FrontPage/5.0.2.2634 mod_perl/2.0.3 Perl/v5.8.8
X-Powered-By PHP/5.2.6
Expires Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache
Set-Cookie CartId=3048209; expires=Wed, 01-Jan-2020 17:00:00 GMT
Content-Length 5126
Keep-Alive timeout=15, max=100
Connection Keep-Alive
Content-Type text/html

Request Header :

User-Agent Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.14) Gecko/20080404 Firefox/2.0.0.14
Accept text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language en-us,en;q=0.5
Accept-Encoding gzip,deflate
Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive 300
Connection keep-alive

Can you tell from this ?

tomdkat · 01:18 PM

Quote:

Originally Posted by skyhigh007

Response Headers
Date Fri, 30 May 2008 16:48:42 GMT
Server Apache/2.0.63 (Unix) mod_ssl/2.0.63 OpenSSL/0.9.8b PHP/5.2.6 FrontPage/5.0.2.2634 mod_perl/2.0.3 Perl/v5.8.8
X-Powered-By PHP/5.2.6
Expires Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache
Set-Cookie CartId=3048209; expires=Wed, 01-Jan-2020 17:00:00 GMT
Content-Length 5126
Keep-Alive timeout=15, max=100
Connection Keep-Alive
Content-Type text/html

That tells the browser NOT to cache the content. I don't know if that will apply only to the HTML or to everything on the page.

EDIT: Look to see if any of your PHP scripts are disabling caching of content.

Peace...

tomdkat · 30-May-2008, 01:21 PM **#21**

I just found this site which has some GREAT info, most importantly this:

Quote:

The client - web browser, spider, cache etc.
having requested a page, receives all the cache control information in the headers sent before the content of the page is sent. By default PHP pages send no cache control headers, and subsequently are not cacheable.

In order for a page to be cacheable, it must have at least a last-modified header, and preferable a few more headers - expires, etag (more about this below). Since the php script dynamically generates the page the moment it is requested, the last modified time is the instant it is requested.

Peace...

skyhigh007 · 30-May-2008, 03:16 PM **#22**

IS this setting from server "Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache? "

I dont have php scripts, except the shopping cart in written in php. all my other pages are in xhtml and css and only few php in there.

tomdkat · 30-May-2008, 05:48 PM **#23**

Quote:

Originally Posted by skyhigh007

IS this setting from server "Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache? "

That got sent back from the server with the other header information. Whether or not the web server was the origin of that setting, I don't know. One thing you can try is loading a simple, static HTML page:

Code:

<html>
<body>
<p>This is a test</p>
</body>
</html>

And see what headers come back, using the same method you used to get the header info above.

Peace...

skyhigh007 · 30-May-2008, 11:11 PM **#24**

There's no " Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache" show up after I tried the above code.
Hm.. So it looks like code i wrote in my site ? Do you know where to look in the code?

By the way, I used Fire bug add on for the firefox to get those response headers.

tomdkat · 12:58 AM

Quote:

Originally Posted by skyhigh007

There's no " Cache-Control no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma no-cache" show up after I tried the above code.
Hm.. So it looks like code i wrote in my site ? Do you know where to look in the code?

Can you post a link to the test HTML code above on your server?

EDIT: I'm doing some experimentation on a server I admin. If you could post a link to the test HTML code above you ran on your server, that would be great.

Thanks!

Peace...

skyhigh007 · 31-May-2008, 07:59 PM **#26**

Here 's the link test2
test.html
test.php

Could it be that the server that I installed SSL ?

tomdkat · 31-May-2008, 08:05 PM **#27**

Nope, this isn't SSL related at all. Thanks for the links. NONE of them have any cache control information in the headers, so there's gotta be something related to the particular site you're working on that's causing the caching of the content to be disabled.

Peace...

skyhigh007 · 31-May-2008, 08:31 PM **#28**

How do I check ? is there particular code or tags or anything that I should look for ?

skyhigh007 · 31-May-2008, 08:45 PM **#29**

It looks like the shopping cart that I use is causing the problem ?test

tomdkat · 01-Jun-2008, 12:14 PM **#30**

Quote:

Originally Posted by skyhigh007

How do I check ? is there particular code or tags or anything that I should look for ?

Hmmm, I'm not sure. Try checking your PHP shopping cart.

Ok, so the shopping cart is setup to NOT cache any data. Cool. Make sense. However, that SHOULD NOT impact the rest of the site. Your other test pages DID NOT have any cache control info in the headers, which is good.

So, I'm thinking your shopping cart should be the only page(s) that don't get cached. To make sure the other site pages generated by PHP get cached, add a "Last Expires" or related header to those PHP generated pages, per the link I posted above.

Peace...

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