17. The system of claim 16 , wherein the virtual browser constructs a dynamic subtree representing non-matching dynamic content and associating the dynamic subtree with the unique token identifier.
17. The system of claim 16 , wherein the virtual browser constructs a dynamic subtree representing non-matching dynamic content and associating the dynamic subtree with the unique token identifier. 18. The system of claim 17 , wherein the virtual browser maintains the association between the dynamic subtree with the unique token identifier until termination of the connection between one of the plurality of servers and the virtual browser.