[Plugin: WP Super Cache] 0 Cached Pages

I installed the dev version and all I get for every page is “Not caching POST request.”

UPDATE: after looking for conflicting plugins (which I did not find) the only way I could get wp-super-cache to work is by commenting out the lines that check if request is POST or if compression is enabled in wp-cache-phase2.php. After doing that the cache is building up. Am i going to go into troubles for doing this?

I checked my wp-config file, and the define WP_CACHE does, in fact appear before the require_once(ABSPATH . ‘wp-settings.php’);…should the define WP_CACHE be located DIRECTLY above the require_once, or is it fine as long as the define comes first?

If my wp-config file is fine the way it is, then the order of these two statements doesn’t seem to be my issue…

Thanks!

Kemper – that’s odd. Something on your server is populating the $_POST array when it’s not supposed to be. Do you have some sort of unusual proxy setup? (oh, and really, upgrade to 2.8.5, you WILL be hacked, it’s only a matter of time)

smoke – try enabling the debug system?

donncha thanks for your reply. The situation on that server is quite complicated, I took over after the guy who set up the whole site left, so I have to deal with a high load server made by someone else. In this, your plugin was a godsend, the server came back to life after a deadly weekend with lots of downs. At the moment I’m not able to find what could be populating POST (there is no proxy that I know of), but if commenting that part isn’t gonna get me into trouble, I’ll postpone the investigation after more urgent issues will be fixed.

By the way, how smooth can the transition to 2.8.5 be (I’m a bit concerned since I’m basically walking in the dark)?

Thanks again

It should upgrade easily. Try it on a test server in your office first, just to be careful.

I got some problems with wp super cache too but slightly different.
This is what google sees when it crawls my pages … Blanco, so it cannot read and index it. The funny thing is that not all my pages give this result to google.

<!– Page not cached by WP Super Cache. Blank Page. Check output buffer usage by plugins. –>

<!– Page not cached by WP Super Cache. No closing HTML tag. Check your theme. –>

What to do?

Ok, I enabled the debug system, and I received the following errors pertaining to Super Cache not cacheing:

No closing html tag. Not caching. — Viewing the page source has a comment next to the closing html tag stating that I am logged in. Upon logging out, the comment states the following:

</html>
<!-- Dynamic page generated in 0.867 seconds. -->
<!-- Cached page generated by WP-Super-Cache on 2009-11-09 19:02:13 -->

URI rejected. Not Caching — not sure what could be causing this.

Please advise. Thank you!

smoke – it’s probably another plugin using the output buffer incorrectly. There are lots of tips in the readme.txt

Sorry to be a pain…is there a list of plugins incompatible with Super Cache? I couldn’t seem to find it in the readme.

If there isn’t, and I have to disable each plugin one by one to determine the culprit, how long do I need to keep each plugin disabled to see if super cache starts caching?

Thank you!

There isn’t a list. To test, just disable the plugin, visit your blog twice and check if the second visit was cached … simple ??

removing the following lines in wp-cache-phase2.php fixed my problems, around line 38

if ( $_SERVER[“REQUEST_METHOD”] == ‘POST’ || !empty( $_POST ) || get_option( ‘gzipcompression’ ) ) {
if ( isset( $GLOBALS[ ‘wp_super_cache_debug’ ] ) && $GLOBALS[ ‘wp_super_cache_debug’ ] ) wp_cache_debug( ‘Not caching POST request.’, 5 );
return false;
}

I printed out my post and go this

Array ( [ajax] => 0 )

So assume that another plugin or my theme is messing things up. I will post more if find anything.

I found the problem, the plugin ‘Complete Vbridge Plugin’ was the problem.

It was writing Array ( [ajax] => 0 ) to the post.

donncha, Hello! This is Doug from Mansfield, MA; recently laid off and going back to night school for web site development after an 18 year career in graphic design for print. Learning about pixels now!

My blog, gives me this error message: URI rejected. Not Caching

Can you tell me what I’m doing wrong, please? Thank you!!

Doug

donncha, here’s the link:

https://01f2617.netsolhost.com/blog1/

Thank you!
Doug from Mansfield, MA