slush-source4/docker/etc/nginx/conf.d/set_charset.conf

Source 4 generator

# ----------------------------------------------------------------------
# | Character encodings                                                |
# ----------------------------------------------------------------------

# Serve all resources labeled as `text/html` or `text/plain`
# with the media type `charset` parameter set to `UTF-8`.
#
# https://nginx.org/en/docs/http/ngx_http_charset_module.html#charset

charset utf-8;

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

# Update charset_types to match updated mime.types.
# text/html is always included by charset module.
# Default: text/html text/xml text/plain text/vnd.wap.wml application/javascript application/rss+xml
#
# https://nginx.org/en/docs/http/ngx_http_charset_module.html#charset_types

charset_types
    text/css
    text/plain
    text/vnd.wap.wml
    text/javascript
    text/markdown
    text/calendar
    text/x-component
    text/vcard
    text/cache-manifest
    text/vtt
    application/json
    application/manifest+json;