# ----------------------------------------------------------------------
# | Cache expiration                                                   |
# ----------------------------------------------------------------------

# Serve resources with far-future expiration date.
#
# (!) If you don't control versioning with filename-based
# cache busting, you should consider lowering the cache times
# to something like one week.
#
# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Cache-Control
# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Expires
# https://nginx.org/en/docs/http/ngx_http_headers_module.html#expires

map $sent_http_content_type $expires {
  default                               1M;

  # CSS
  text/css                              1y;

  # Data interchange
  application/atom+xml                  1h;
  application/rdf+xml                   1h;
  application/rss+xml                   1h;

  application/json                      0;
  application/ld+json                   0;
  application/schema+json               0;
  application/geo+json                  0;
  application/xml                       0;
  text/calendar                         0;
  text/xml                              0;

  # Favicon (cannot be renamed!) and cursor images
  image/vnd.microsoft.icon              1w;
  image/x-icon                          1w;

  # HTML
  text/html                             0;

  # JavaScript
  application/javascript                1y;
  application/x-javascript              1y;
  text/javascript                       1y;

  # Manifest files
  application/manifest+json             1w;
  application/x-web-app-manifest+json   0;
  text/cache-manifest                   0;


  # Markdown
  text/markdown                         0;

  # Media files
  audio/ogg                             1M;
  image/bmp                             1M;
  image/gif                             1M;
  image/jpeg                            1M;
  image/png                             1M;
  image/svg+xml                         1M;
  image/webp                            1M;
  video/mp4                             1M;
  video/ogg                             1M;
  video/webm                            1M;

  # WebAssembly
  application/wasm                      1y;

  # Web fonts
  font/collection                       1M;
  application/vnd.ms-fontobject         1M;
  font/eot                              1M;
  font/opentype                         1M;
  font/otf                              1M;
  application/x-font-ttf                1M;
  font/ttf                              1M;
  application/font-woff                 1M;
  application/x-font-woff               1M;
  font/woff                             1M;
  application/font-woff2                1M;
  font/woff2                            1M;

  # Other
  text/x-cross-domain-policy            1w;
}

expires $expires;