Answers

• shannonwrege Posts: 22Questions: 9Answers: 0

  February 2017 edited February 2017

  FYI, I tried setting:

  $.ajaxSetup({ cache: true });

  on the document load but I still get the "_" parameter in the query string of the ajax loads for the datatable.
• allan Posts: 61,642Questions: 1Answers: 10,093 Site admin

  February 2017

  I have seen it written that to disable the jQuery anti cache parameter, you should set ajax.cache = true.

  The exact opposite . Set it to false to disable - e.g.:

  ajax: {
    url: '...'.
    cache: false
  }
  

  Allan
• shannonwrege Posts: 22Questions: 9Answers: 0

  February 2017

  Well, I actually want to disable the anti cache parameter (i.e. enable browser caching), but this code snipped is what I needed. Thanks!
• allan Posts: 61,642Questions: 1Answers: 10,093 Site admin

  February 2017

  Yeah the double negative is a bit odd, but cache: false is how you do it in jQuery.

  Allan
• shannonwrege Posts: 22Questions: 9Answers: 0

  April 2017

  Followup to this earlier question. I have the ajax caching working, but only if I initially load the table that way. In other words:

  var table = $('#my-table').DataTable({
        ajax: {
          url: "/test.json",
          cache: true
        }
  }
  

  and then calling

  table.ajax.url("/test2.json").load(function () {
    ...
  }
  

  works fine. A cached version of test2.json is loaded. It seems that the initial setting instructed future ajax calls to use the cache.

  I can not figure out how to do the initial load from data supplied on the page request and then do a cached ajax call. So if for example I initialize the table this way:

  var table = $('#my-table').DataTable({
        data: variableWithJsonData;
  }
  

  Then executing ...

  table.ajax.url("/test2.json").load(function () {
    ...
  });
  

  ... adds the cache busting querystring parameter. Is there a way to make the ajax load call with instructions to use the cached version if available?