2. The method of claim 1 , wherein: the web client/server communications system connects the web client and the web server via a proxy; and scanning the first response and identifying the reference are performed by the proxy.
2. The method of claim 1 , wherein: the web client/server communications system connects the web client and the web server via a proxy; and scanning the first response and identifying the reference are performed by the proxy. 5. The method of claim 2 , wherein: the web client is running on a user system; and the proxy is implemented in a computer system connected to the user system via a high speed, low latency link.