Which iRule will instruct the client's browser to avoid caching HTML server responses?
A. when HTTP_REQUEST {if {[HTTP::header Content-Type] equals "html"} {HTTP::header insert Pragma "no-cache"HTTP::header insert Expires "Fri, 01 Jan 1990 00:00:00 GMT" HTTP::header replace Cache-Control "no-cache, no-store, must-revalidate" }}
B. when HTTP_REQUEST {if {[HTTP::header Content-Type] contains "html"} {HTTP::header insert Pragma "no-cache"HTTP::header insert Expires "Fri, 01 Jan 1990 00:00:00 GMT" HTTP::header replace Cache-Control "no-cache, no-store, must-revalidate" }}
C. when HTTP_RESPONSE {if {[HTTP::header Content-Type] contains "html"} {HTTP::header insert Pragma "no-cache"HTTP::header insert Expires "Fri, 01 Jan 1990 00:00:00 GMT" HTTP::header replace Cache-Control "no-cache, no-store, must-revalidate" }}
D. when HTTP_RESPONSE {if {[HTTP::header Content-Type] equals "html"} {HTTP::header insert Pragma "no-cache"HTTP::header insert Expires "Fri, 01 Jan 1990 00:00:00 GMT" HTTP::header replace Cache-Control "no-cache, no-store, must-revalidate" }}