title: JQuery Ajax post parameters sometimes not sent on IE
body: <p>The problem I am having is that when I use jquery ajax post, with very low frequency (&lt; 2%), the post parameters never make it to the server.  I do see the post request in the access log.  It seems to happen only on IE (I've observed it on 7, 8, and 9 in the logs).  </p>
  
  <p>When I switch the call from type "post" to type "get" the issue goes away.</p>
  
  <p>Has anyone else ever seen this odd behavior on IE?  Thanks!</p>
  
  <p>I have seen this for various ajax calls, but here is a typical one:</p>
  
  <pre><code>var data= {
      "guess" : "m1",
      "eas" : "hello world"
  };
  
  $.ajax({
      url: "http://myco.com/ajaxcall.action",
      data: data,
      type : 'post',
      dataType: 'json',
      success: function(data) {},
      error: function() {}
  });
  </code></pre>
  
  <p><strong>Update</strong>: passing "cache: false" does not fix the issue.</p>