7. A first apparatus according to claim 1 , wherein said causing means comprises modifying means for obtaining, from the first data, modified first data which is included in the second HTTP response, wherein said modifying means modifies markup language code in the first data such that the web browser of the second apparatus, by processing the modified markup language code, generates the second HTTP request.
7. A first apparatus according to claim 1 , wherein said causing means comprises modifying means for obtaining, from the first data, modified first data which is included in the second HTTP response, wherein said modifying means modifies markup language code in the first data such that the web browser of the second apparatus, by processing the modified markup language code, generates the second HTTP request. 9. A first apparatus according to claim 7 , wherein the markup language code comprises HTML code, and wherein said modifying means comprises means for inserting Javascript into the HTML code to produce the modified markup language code.