[Plugin: WP Super Cache] WP Super Cache not refreshing post after comments made

Hello, I have the exact same problem described by the OP.

WordPress 3.3.1, WP Super Cache 1.0

I did not test the devel version, but here in 1.0 my dirty fix here was changing from site_url to home_url in wp-cache-phase1.php.

From:

$uri = str_replace( site_url(), '', get_permalink( $post_id ) );

To:

$uri = str_replace( home_url(), '', get_permalink( $post_id ) );

I don’t know if that will break other functionality, but now the new comments wipe the current cache for the page.

I guess the problem is because we’re not using the wordpress files in the root of the domain. The OP installed WordPress in the ‘wordpress’ folder, and myself inside the ‘wp’ folder. Note that these folders do not appear in the site URL.

From my wp-config.php file:

define('WP_HOME', 'http://aurelio.net');       // home, index
define('WP_SITEURL', 'http://aurelio.net/wp'); // WP dir

As far as I can tell, the “new comment updates the post cache” is the only WP Super Cache feature that is not working in my non-standard WordPress install, everything else works fine.

The problem is inside get_current_url_supercache_dir function
in wp-cache-phase1.php in line

$dir = preg_replace( '/:.*$/', '',  $_SERVER["HTTP_HOST"] ) . $uri; // To avoid XSS attacks

This works only for installations at the root folder

a fix would be to have the function get_supercache_dir to build the dir
inside this function

i can fix that but it is better for evryone to know especially the developer

Nikos, I guess in your case, WordPress installation (site_url) and the homepage (home_url), both as set to /blog, so changing that line in wp-cache-phase1.php won’t make a difference.

My fix does not work for you and your fix is not necessary for me. Let’s hope in the next version of the plugin Donncha will manage to fix both cases 🙂

this is thecorect fix that worked for me
the problem is to have super cache take the correct url even if not on root folder for refreshing after comment this i find to work perfectly so far regardless of root or not

if ( $post_id != 0 ) {
		$uri = str_replace( site_url(), '', get_permalink( $post_id ) );
		$dirprefix=true;
	} else {
		$uri = strtolower( $wp_cache_request_uri );
		$dirprefix=false;
	}
	$uri = preg_replace('/[ <>\'\"\r\n\t\(\)]/', '', str_replace( '/index.php', '/', str_replace( '..', '', preg_replace("/(\?.*)?$/", '', $uri ) ) ) );
	$uri = str_replace( '\\', '', $uri );
	if ($dirprefix)
		$dir = str_replace( 'http://', '',  site_url() ) . $uri; // To avoid XSS attacks
	else
		$dir = preg_replace( '/:.*$/', '',  $_SERVER["HTTP_HOST"] ) . $uri; // To avoid XSS attacks

if this is alraedy fixed, i’m sorry, as i only check release versions
generally i dont check dev versions.
why dont you release an update for everyone to be able to update correctly

anyway i solved my issue

thanx for a nice and usefull plugin.