27. A method according to claim 23 , further comprising sending, via a network connection to the second apparatus, the HTTP response having been injected with the Javascript page load event handler.
23. An apparatus-implemented method comprising: receiving by a first apparatus comprising a processor, via a network connection, of a HTTP response, the HTTP response corresponding to a web page; and injecting, by the first apparatus into the HTTP response, of a Javascript page load event handler that is triggered in response to finishing of loading of the web page by a web browser of a second apparatus, wherein the triggering of the Javascript page load event handler causes the second apparatus to generate a second HTTP request.