# # Note: # If you are using `ngx_pagespeed`, the the `Cache-Control: no-transform` # response header will prevent `PageSpeed` from rewriting `HTML` files, and, # if `pagespeedDisableRewriteOnNoTransform off` is not used, also from # rewriting other resources. # # https://developers.google.com/speed/pagespeed/module/configuration#notransform # Prevent mobile network providers from modifying your site add_header Cache-Control 'no-transform' always;