Update proxy config to improve behavior and allow compatibility with Safari on MacOS and iOS

installation/pleroma.nginx

@@ -72,9 +72,13 @@ server {
 
     location ~ ^/(media|proxy) {
         proxy_cache pleroma_media_cache;
+        slice              1m;
+        proxy_cache_key    $host$uri$is_args$args$slice_range;
+        proxy_set_header   Range $slice_range;
+        proxy_http_version 1.1;
+        proxy_cache_valid  200 206 301 304 1h;
         proxy_cache_lock on;
         proxy_ignore_client_abort on;
-        proxy_buffering off;
         chunked_transfer_encoding on;
         proxy_pass http://localhost:4000;
     }