server-configs-nginx/h5bp/web_performance/content_transformation.conf

31 lines
1.4 KiB
Nginx Configuration File

# ----------------------------------------------------------------------
# | Content transformation |
# ----------------------------------------------------------------------
# Prevent intermediate caches or proxies (such as those used by mobile
# network providers) and browsers data-saving features from modifying
# the website's content using the `no-transform` directive for
# `Cache-Control` header.
#
# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control
# https://tools.ietf.org/html/rfc7234#section-5.2.2.4
#
# (!) Carefully consider the impact on your visitors before disabling
# content transformation. These transformations are performed to
# improve the experience for data- and cost-constrained users
# (e.g. users on a 2G connection).
#
# You can test the effects of content transformation applied by
# Google's Lite Mode by visiting: https://googleweblight.com/i?u=https://www.example.com
#
# https://support.google.com/webmasters/answer/6211428
#
# (!) If you are using `ngx_pagespeed`, note that disabling this will
# prevent `PageSpeed` from rewriting HTML files, and, if the
# `pagespeed DisableRewriteOnNoTransform` directive isn't set to
# `off`, also from rewriting other resources.
#
# https://developers.google.com/speed/pagespeed/module/configuration#notransform
add_header Cache-Control "no-transform";