Hi
Pagespeed by default only rewrites the http domain from where it work.
But you use https, not http.
So pagespeed can´t reach your files and trow
<!--4xx status code, preventing rewriting of messages,
You can view these messages adding ?PageSpeedFilters=+debug to you url.
So:
1.- you need to auth the https version: ModPageSpeedDomain http*://*.
havasweb.huThis cover http and https and also any subdomain.
2.- You need to configure https fecht:
2 ways to do this: Enable https fecht or configure ModPageSpeedLoadFromFile
ModPagespeedFetchHttps enable
ModPagespeedSslCertDirectory directory
ModPagespeedSslCertFile file (this only if your server is Redhat/centos distro)
OR
Some files have Cache-Control: max-age=0, no-cache, must-revalidate
These files got untouched by pagespeed, a public cacheable header is needed, think in pagespeed as a proxy.