gnusocial.cc no usa Cache o: :o
root@MATILDA:~ $ curl -I https://gnusocial.cc/file/b96920952d919414ee1b88cb820eac31d13c60329d99ba0182dcf8c2e0a670c2.png
HTTP/1.1 200 OK
Server: nginx/1.10.3
Date: Thu, 16 Apr 2020 22:05:09 GMT
Content-Type: image/png
Content-Length: 281599
Last-Modified: Thu, 16 Apr 2020 20:33:01 GMT
Connection: keep-alive
ETag: "5e98c0fd-44bff"
Estricto-Transport-Security: max-age=31536000;
Pragma: no-cache
Cache-Control: private, max-age=0, no-cache, no-store
Accept-Ranges: bytes
deben usar Cache x dios