73. A method as claimed in claim 45 , comprising storing in a cache memory a copy of web page code output in a response message; and outputting web page code from the stored copy in response to receiving a further request message for the same web page information.
73. A method as claimed in claim 45 , comprising storing in a cache memory a copy of web page code output in a response message; and outputting web page code from the stored copy in response to receiving a further request message for the same web page information. 74. A method as claimed in claim 73 , wherein the cache memory selectively stores web page code depending upon whether a requirement for cache memory storage is defined in the content document from which the web page code is generated.