Page speed and "Broswer caching" and "Add Expires headers"
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network. /assets/src/js/uikit.min.js (expiration not specified) che/b6256e983b8273db03eaed782dcc43ca.jpg (expiration not specified) rest of the list....
I find this solution (edit htaccess)
But this its little problem (i dont have control on this by Concrete5 "clear cache").
How to "get rid" from this errors? (i want high score in the speed tests).
This has nothing to do with the concrete5 caching. .htaccess is in the root of your installation. GTmetrix should recognize this automatically.
and also a couple others like