Additional nginx directives/Leverage browser caching are ignored for WordPress website

Symptoms

• Additional nginx directives/Leverage browser caching are set under Domains > example.com > Apache & nginx Settings for a WordPress website.
  For example:

  CONFIG_TEXT: location ~* .(js|jpg|jpeg|gif|png|css|tgz|gz|rar|bz2|doc|pdf|ppt|tar|wav|bmp|rtf|swf|ico|flv|txt|woff|woff2|svg)$ {
  expires 30d;
  add_header Pragma "public";
  add_header Cache-Control "public";
  }

• Expiration headers are not applied

• The website has the Hotlink protection security measure enabled at Domains > example.com > WordPress > Security.

• The curl utility shows that HTTP headers set in Additional nginx directives are not configured for files with extensions like .jpg, .png, .css, etc.

  # curl -I -c - "https://example.com/path-to-file.jpg" -k
  HTTP/2 200
  server: nginx
  date: Fri, 21 Dec 2018 10:41:47 GMT
  content-type: image/jpeg
  content-length: 173018
  last-modified: Wed, 19 Dec 2018 16:36:53 GMT
  etag: "5c1a73a5-2a3da"
  x-powered-by: PleskLin
  accept-ranges: bytes

Cause

Resolution

Workaround

If update is not possible for some reason you may try the following

Additional information

Cache expiration header in additional Nginx directives does not get applied