Try this code in your Application.cfm template:




<CFAPPLICATION NAME="whateverYouWant"
SESSIONMANAGEMENT="YES"
LOGINSTORAGE="session"
SETCLIENTCOOKIES="yes"
SESSIONTIMEOUT="#CreateTimeSpan(0, 0, 20, 0)#">


<cfheader name="Expires" value="#Now()#">
<cfheader name="Pragma" value="no-cache">
<cfheader name="Cache-Control" value="no-cache,no-store,must-revalidate">