Piwik Missing Cache Validator

I am getting a cache validator issue for Piwik script, it reads:

The following resources are missing a cache validator. Resources that do not specify a cache validator cannot be refreshed efficiently. Specify a Last-Modified or ETag header to enable cache validation for the following resources:


How and where do I specify a Last-Modified or ETag header to enable cache validation?

Thank you,


Is this fixable? Anyone?

The piwik.php call should never be cached so it’s on purpose

If this were cacheable, the browser would no longer submit tracking requests (because the response is already cached). That would be very bad. So yes, the current behaviour is deliberate. Don’t try to “fix” it.

Thank you :slight_smile: