title: Does the browser always request a cached file?
body: <p>Does browser always request a cached file on each request?  (e.g., a CSS style sheet or .js javascript file that has been sent previously)</p>
  <p>I'm not sure but i think the answer is &quot;no, it does not&quot;.<br />
  But then why does the Apache log show that the cached file was requested again?
  What is the default behavior ?</p>