serialize-connections (yes | no; default: no) - Do not make multiple connections to server for multiple client connections, if possible (i.e. server supports persistent HTTP connections). Clients will be served on FIFO principle; next client is processed when response transfer to the previous one is completed. If a client is idle for too long (max 5 seconds by default), it will give up waiting and open another connection to the server
always-from-cache (yes | no; default: no) - ignore client refresh requests if the content is
considered fresh
always-from-cache is wonderful actually but i wonder if it obeys the rules for like webmail systems like gmail or yahoo mail so as not to load stale content. (old)