Hi, It happens a few times daily that on submitting a login request to sites like Atlassian confluence (not just at atlassian, but elsewhere too), or Redmine, that the user gets a screen "The requested URL could not be retriueved" and with a "zero sized reply". It does not happen every time. If one refreshes the browser it is ok. If the destination is excluded from SSL interception, it does not happen. In cache .log: 2012/12/07 15:51:28 kid1| helperOpenServers: Starting 1/40 'ssl_crtd' processes 2012/12/07 15:51:39 kid1| WARNING: HTTP: Invalid Response: No object data received for https://support.atlassian.com/login.jsp AKA support.atlassian.com/login.jsp 2012/12/07 15:51:39 kid1| WARNING: HTTP: Invalid Response: No object data received for https://support.atlassian.com/favicon.ico AKA support.atlassian.com/favicon.ico (and 20 or so like this). Running Squid 3.3 HEAD from Nov 30th. Thanks, Sean Boran ..