cf-cache-status: BYPASS with Varnish Cache

(@nsjana93)

https://www.bongdunia.com/

HTTP/2200

date: Tue, 03 Sep 2024 11:15:32 GMT

content-type: text/html; charset=UTF-8

vary: Accept-Encoding

x-wp-cf-super-cache: cache

x-wp-cf-super-cache-active: 1

x-wp-cf-super-cache-cache-control: s-maxage=31536000, max-age=60

x-wp-cf-super-cache-cookies-bypass: swfpc-feature-not-enabled

last-modified: Mon, 02 Sep 2024 22:48:41 GMT

x-cache-lifetime: 604800

x-cache-tags: 3743,3743-post-49969

referrer-policy: same-origin

alt-svc: h3=":443"; ma=86400

x-cache-age: 44810

pragma: no-cache

expires: -1

cache-control: no-store, no-cache, must-revalidate, max-age=0

cf-cache-status: BYPASS

server: cloudflare

cf-ray: 8bd5528e4926d3b0-FRA

Plugin Contributor

(@isaumya)

As you can see above the values of x-wp-cf-super-cache-cache-control and cache-control does not match. Which means you may have some other page caching plugin or system that is overwriting the cache-control header.

Thread Starter

(@nsjana93)

The cache-control: no-store, no-cache, must-revalidate, max-age=0 appearing when I enable varnish cache

Plugin Contributor

(@isaumya)

Then maybe some varnish plugin is getting added to your website that’s adding that cache control header?

Thread Starter

(@nsjana93)

no i have only wp-rocket and Super Page Cache

but i have found header(sprintf(‘Cache-Control: public, max-age=%s, s-maxage=%s’, $cacheLifetime, $cacheLifetime)); line in varnish settings.json file

public function sendCacheHeaders(): void
{
    $isCacheable = $this->isCacheable();
    if (true === $isCacheable) {
        $cacheTagPrefix = $this->getCacheTagPrefix();
        $cacheLifetime = $this->getCacheLifetime();
        $cacheTags = array_merge([$cacheTagPrefix], self::getCacheTags());
        $cacheTags = array_unique($cacheTags);
        if (count($cacheTags)) {
            header(sprintf('X-Cache-Lifetime: %s', $cacheLifetime));
            header(sprintf('X-Cache-Tags: %s', implode(',', $cacheTags)));
            header(sprintf('Pragma: %s', 'cache'));
            header(sprintf('Cache-Control: public, max-age=%s, s-maxage=%s', $cacheLifetime, $cacheLifetime));
        }
    }
}

Thread Starter

(@nsjana93)

also found set resp.http.Cache-Control = “no-store, no-cache, must-revalidate, max-age=0”; in file

set resp.http.X-Cache-Age = resp.http.Age;
unset resp.http.Age;

# Avoid being cached by the browser.
if (resp.http.Cache-Control !~ "private") {
  set resp.http.Pragma = "no-cache";
  set resp.http.Expires = "-1";
  set resp.http.Cache-Control = "no-store, no-cache, must-revalidate, max-age=0";
}

Plugin Contributor

(@isaumya)

Yes that’s the file. From where it’s coming from? Can you share the file path?

Thread Starter

(@nsjana93)

/etc/varnish i removed the code and now its working

Plugin Contributor