No server or forwarder data received
Your request for @protocol@@hostport@@path@ could not be fulfilled, because the connection to @host@ (@host-ip@) has been closed before Privoxy received any data for this request.
This is often a temporary failure, so you might just try again.
If you get this message very often, consider disabling connection-sharing (which should be off by default). If that doesn't help, you may have to additionally disable support for connection keep-alive by setting keep-alive-timeout to 0.