Added cache header for static and public files (refs #18984).

7.Nginx/vhost_mediaserver-msuser.conf

@@ -24,6 +24,9 @@ server {
 	error_log /var/log/nginx/error_msuser.log;
 
 	location /public {
+		expires 30d;
+		add_header Pragma public;
+		add_header Cache-Control "public";
 	}
 	location /resources {
 		location ~ \.ts$ {
@@ -42,8 +45,14 @@ server {
 		}
 	}
 	location /static {
+		expires 30d;
+		add_header Pragma public;
+		add_header Cache-Control "public";
 	}
 	location /crossdomain {
+		expires 30d;
+		add_header Pragma public;
+		add_header Cache-Control "public";
 	}
 	location /streaming/ {
 		proxy_pass http://localhost:1935/live/;