If your Web servers are experiencing issues with having HTTP 1.1 requests sent to them, you can using the following troubleshooting command that enables an HTTP 1.1 request from a browser to be translated to an HTTP 1.0 request so that the Web server will respond correctly. The following is an example of how you would use this command:
SET ACCELERATOR <name> ForceHTTP10ToOrigin=Yes
where AcceleratorName is the name of the accelerator for which you want to translate HTTP 1.1 requests to HTTP 1.0. Purge the cache afterwards, then HTTP 1.0 requests can be sent to the origin server. This action is permanent upon reboot and is exported to the .nas file.