HyperCache works in browser but not using third-party testing tools

  • if3a

    (@if3a)


    9 years ago

    I’m having a problem with the cache. It works perfectly fine in my browser but when using third party testing tools like gtmetrix or pingdom, it’s clear it’s not serving a cached page. I have set the plugin with everything default except “Cached pages will be valid for” is set to 0 (stay cached forever).

    Please can you investigate why?

    Edit: I’ve been using WP Super Cache for so long without any problems. I wanted to try hyper cache because it has options I can take advantage of. WP Super Cache gives me a 20 ms load time for the first document and hypercache is the same when looking in my browsers developer tools. It must be avoiding cache for pingdom requests.

    https://www.ads-software.com/plugins/hyper-cache/

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  • Thread Starter if3a

    (@if3a)

    The “problem” is hypercache is skipping the cache when no-cache headers are sent. This really should be disabled by default with an option to skip the cache if a no-cache header is sent because the users needing this are only going to account for fraction of those that don’t (less than 1%). Cache is’t just helpful for legitimate traffic but it helps keep server load down by harmful bots that use no-cache headers in their requests. I hope you take this into consideration.

    Another problem (an actual one) is that the advanced-cache.php file throws errors if WordPress crons are executed locally using /usr/bin/php.

    Notice: Undefined index: HTTP_USER_AGENT in /home/**removed**/web/www/wp-content/advanced-cache.php on line 12

    Notice: Undefined index: HTTP_USER_AGENT in /home/**removed**/web/www/wp-content/advanced-cache.php on line 17

    Notice: Undefined index: REQUEST_METHOD in /home/**removed**/web/www/wp-content/advanced-cache.php on line 26

    Notice: Undefined index: QUERY_STRING in /home/**removed**/web/www/wp-content/advanced-cache.php on line 31

    Notice: Undefined index: HTTP_HOST in /home/**removed**/web/www/wp-content/advanced-cache.php on line 129

    Warning: Cannot modify header information – headers already sent by (output started at /home/**removed**/web/www/wp-content/advanced-cache.php:12) in /home/**removed**/web/www/wp-content/advanced-cache.php on line 216

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