Merge branch 'fix/nginx-safari' into 'develop'

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

See merge request pleroma/pleroma!538

installation/pleroma.nginx

@@ -72,6 +72,11 @@ 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;