Wrong page shown on post request

The plugin shouldn’t be showing a cached page for a POST request. Enable the debug log for your IP and POST again and check what the plugin does. It should say it’s not using the cache.

17:34:02 22758 wpsc_is_caching_user_disabled: false
17:34:02 22758 Supercache Late Init: add wp_cache_serve_cache_file to init
17:34:02 22758 Supercache Late Loader running on init
17:34:02 22758 wp_cache_get_cookies_values: return:
17:34:02 22758 supercache dir: ABSPATH/wp-content/cache/supercache/geriartriya.ru/
17:34:02 22758 wp_cache_get_cookies_values: return:
17:34:02 22758 Fetched static page data from supercache file using PHP. File: ABSPATH/wp-content/cache/supercache/geriartriya.ru/index-https.html
17:34:02 22758 wp_cache_serve_cache_file: checking age of cached vs served files.
17:34:02 22758 wp_cache_serve_cache_file: 304 browser caching not possible as timestamps differ.

• This reply was modified 1 year, 6 months ago by hitty.

And this is mainpage content, but URL is not mainpage
https://www.dropbox.com/s/1hh1vi5p5nyjdca/Screenshot%202023-05-23%20at%2020.33.16.png?dl=0

When plugin disabled all works fine,

• This reply was modified 1 year, 6 months ago by hitty.
• This reply was modified 1 year, 6 months ago by hitty.
• This reply was modified 1 year, 6 months ago by hitty.
• This reply was modified 1 year, 6 months ago by hitty.
• This reply was modified 1 year, 6 months ago by hitty.

@donncha the problem is still there. Can you help me?

Was that debug log from a request for the main page? If not, then what URL was it? Was it the POSTing to https://geriartriya.ru/rg/simferopol/chastnye-pansionaty-simferopol ? There’s definitely something up with your server then. Line 125 of wp-cache-phase1.php will stop the plugin serving a cached page to a POST request.

if ( ! $cache_enabled || ( isset( $_SERVER['REQUEST_METHOD'] ) && in_array( $_SERVER['REQUEST_METHOD'], array( 'POST', 'PUT', 'DELETE' ) ) ) || isset( $_GET['customize_changeset_uuid'] ) ) {
    return true;
}

Do you have some sort of proxy running that might interfere with the real URL seen by WordPress?

@donncha yes, this is a POST to https://geriartriya.ru/rg/simferopol/chastnye-pansionaty-simferopol?

We didn’t use any proxies.

Yes, line 125 is working and returning true. BTW it worked only if i set this settings.

https://www.dropbox.com/s/uohcpz9ux6e2zp9/Screenshot%202023-05-24%20at%2017.28.28.png?dl=0

https://www.dropbox.com/s/p7tiix2r576wxus/Screenshot%202023-05-24%20at%2017.28.10.png?dl=0

If that line is returning true then it can’t be serving a cached file as the file is served by the function wp_cache_serve_cache_file() that is called afterwards in wp-cache-phase1.php

I’m sorry, I don’t know why this happens on your site. You could go into the get_current_url_supercache_dir function and examine what directory it returns. Use error_log() and examine your PHP error_log. Maybe you’ll find something there that will help.