1.6.17 with / NGINX - google pagespeed

[petter5]

Hi. I'm trying to solve a problem:  Installed a site with "default-bootstrap" theme, Ubuntu 16.04 x64  , Percona, PHP 7.0 , using latest google pagespeed module with NGINX.

 

Presta shop cache etc is enabled, and the site performs great in pagespeed insights with a score of 92 mobile/97 desktop.

 

There is one problem:  Pagespeed insights shows that "browser caching" is set to 5 minutes for the mobile view port.

…efault2x.jpg.pagespeed.ic.iAjDl8z6q9.jpg (5 minutes)

The desktop view port is normal.

 

This results in that after 5 minutes, the site get a penalty in google pagespeed insight's.  I has communicated with google's pagespeed developer team and they ask me to look into prestashop, not the pagespeed module to get rid of this embarrassing problem.

 

Has tried to "clear cache" several times and also restart nginx / php.

Any suggestions about possible reason for this error would be great.

 

Any input about how to solve this w