You can configure the ProxySG appliance to add a cache control header in response packets to the browser to instruct it not to cache the contents. Use the CPL as follows:
; Policy Rules
<Proxy>
category=("Government/Legal", "Financial Services") action.Browser_No_Cache(yes)
define action Browser_No_Cache
set( response.header.Cache-Control, "no-cache, no-store" )
end
Notes: