Long description

A request is sent from a browser as follows:

Step 1: GET forward slash vacation dot h t m l.

Step 2: document is sent back to the browser.

Step 3: For each requested resource, browser determines if cached copy is fresh.

Step 4: If resource is fresh open parenthesis recent and stored in cache close parenthesis, then use cached copy.

Step 5: If not fresh, then request resource GET forward slash mountain dot j p g.

Step 6: mountain dot j p g is sent back to the browser.

Step 7: Save resource in browser cache.