It seems highly unlikely that achieving the following is possible without expert confirmation:
On page number 1, user and application data is requested as soon as the page loads. Page number 2 utilizes the same script, so requesting the same information would be redundant.
I am aware that browsers cache scripts, but my question pertains to whether they also cache execution (data).
Due to differing layouts, reloading page number 2 via ajax is not feasible.