same $.ajax call is ASYNC in Chrome but SYNC in IE

same $.ajax call is ASYNC in Chrome but SYNC in IE

Hi All,

I have a dumb simple ajax call to a nonexistent url with an error callback: 
   
    
    
  1. $.ajax("non-nonexistent-url", { error: function () { alert("FOO"); } });
    2. 
    
  2. alert("BAR");
    3. 
   

   

    When I run it in Chrome, I get "BAR" then "FOO" alerts, which is the behavior I expect - ajax call is asynchronous.
   

   

    In IE, however, I get "FOO" then "BAR", which looks like synchronous call, but why? It should be async by default, right?
   

   

    I hoped it's guaranteed that $.ajax returns before any callbacks are executed...
   

   

    

   

   

    Thanks!