title: Possible to cache JSON to increase performance / load time?
body: <p>I'm using a JSON file to autopopulate a drop down list.  It's by no means massive (3000 lines and growing) but the time taken to refresh the page is becoming very noticeable.</p>
  
  <p>The first time the page is loaded the JSON is read, depending on what option the user has selected dictates which part of the JSON is used to populate the drop down. </p>
  
  <p>It's then loaded on every refresh or menu selection after.  Is it possible to somehow cache the values to prevent the need for it to be reloaded time and time again?</p>
  
  <p>Thanks.</p>
  
  <p>EDIT: More Info:
   It's essentially a unit converter. The JSON holds all the details. When a users selects 'Temp' for example a call is made and the lists are populated. Once a conversion is complete you can spend all day running temp conversions and they'll be fine but everytime a user changes conversion type so now length, the page refreshes and takes a noticeable amount of time.</p>