Delay JQuery Ajax (jqXHR) Request with done/fail/complete callbacks -

when use success callback solution works fine, when use .done() fail, how can retry send enqueued ajax request original .done() .fail() , complete() registered callbacks?

var requestqueue = [];         $.ajaxsetup({              cache: false,             beforesend: function (jqxhr, options) {                                                  if(true){ //any condition 'true' demonstrate                     requestqueue.push({request:jqxhr,options:options});                     //simulate process queue later resend request                     window.settimeout(function(){                         //this work success callbak option,                          //but .done() console.log("well done!");                         // fail                                                     $.ajax($.extend(requestqueue.pop().options, {global:false, beforesend:null}));                     }, 3000)                     return false;                 }             }                    });         $.ajax({             url:"testechanged.html",             error: function(){                 console.log("oh nooooo!");             }         }).done(function(){             console.log("well done!");         }); 

i wanna enqueue ajax call (based in condition) resend later, when resend it, .done()/.fail() original callback must called. 'success' callback option code works fine.

i use delaying ajax requests:

global variant:

var origsend = xmlhttprequest.prototype.send; xmlhttprequest.prototype.send = function () {     var xhr = this;     var origarguments = arguments;     settimeout(function () {         if (xhr.readystate === 1) {             origsend.apply(xhr, origarguments);         }     }, 1000); }; 

vairant affects jquery ajax requests:

$(document).ajaxsend(function (event, jqxhr, settings) {     var origxhrfunc = settings.xhr;     settings.xhr = function () {         var xhr = origxhrfunc();         var origsend = xhr.send;         xhr.send = function () {             var origarguments = arguments;             settimeout(function () {                 if (xhr.readystate === 1) {                     origsend.apply(xhr, origarguments);                 }             }, 1000);         };         return xhr;     }; }); 

in jquery solution, can attach handlers jqxhr done/fail/progress events.