3378:   // Create the request object; Microsoft failed to properly  3379:   // implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available  3380:   // This function can be overriden by calling jQuery.ajaxSetup

  3381:   xhr:function(){  3382:           return window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();  3383:   },

  3530:                         // Set header so the called script knows that it's an XMLHttpRequest  3531:                         xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");  3532: 

  1124:   return Try.these(  1125:     function() {return new XMLHttpRequest()},  1126:     function() {return new ActiveXObject('Msxml2.XMLHTTP')},

  1253:   var headers = {  1254:     'X-Requested-With': 'XMLHttpRequest',  1255:     'X-Prototype-Version': Prototype.Version,

  1263:   /* Force "Connection: close" for older Mozilla browsers to work  1264:    * around a bug where XMLHttpRequest sends an incorrect  1265:    * Content-length header. See Mozilla Bugzilla #246651.

    16: ... |_333|opera|DeferredList|ret|_309|silentlyCancelled|canceller|_nextId|Array|_293|XMLHttpRequest|chained|_281|tail|_252|_225|msec|day|month|iso ...

    30: ... t|httpData|httpNotModified|httpSuccess|fieldset|beforeSend|getBoundingClientRect|XMLHttpRequest|ActiveXObject|col|br|abbr|pixelLeft|urlencoded ...

    51: ... zDomContentLoaded|domcontentloaded|Unable|base|chrome|1223|304|300|200|available|XMLHttpRequest|_println|language|userLanguage|isQuirks|factor ...

    66: ... d|reset|removeEventListener|activate|findFirstElement|setRequestHeaders|setWidth|XMLHttpRequest|constructor|application|xml|onCreate|contentTy ...

   313:   trident: function(){   314:           return (!window.ActiveXObject) ? false : ((window.XMLHttpRequest) ? 5 : 4);   315:   },

   349:   return $try(function(){   350:           return new XMLHttpRequest();   351:   }, function(){

  3683:   headers: {  3684:           'X-Requested-With': 'XMLHttpRequest',  3685:           'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'

    42: descriptorShouldBe("global", "'window'", {writable: false, enumerable: true, configurable: false, value:"global"});    43: descriptorShouldBe("global", "'XMLHttpRequest'", {writable: true, enumerable: true, configurable: false, value:"XMLHttpRequest"});    44: descriptorShouldBe("global", "'length'", {writable: true, enumerable: true, configurable: false, value:"global.length"});

     7:   try {     8:       var req = new XMLHttpRequest;     9:       req.open("GET", "/resources/network-simulator.php?path=/appcache/resources/simple.txt", false);

    16: function xhr(win) {    17:   var xhr = new win.XMLHttpRequest();    18:   var url = prompt("Test failed. To prove it, I'm going " +    19:                    "to make a cross-domain XMLHttpRequest. Where " +    20:                    "would you like me to send it?\n\nHint: You can " +

    27: function instructions(params) {    28:   var str = "<p>This test tries to make a cross-domain XMLHttpRequest to " +    29:     "check whether JavaScript object wrappers are working (bug 16837, bug 16011).</p>" +

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