// so we use the ActiveXObject when it is available
// This function can be overriden by calling jQuery.ajaxSetup
xhr: function() {
- return window.XMLHttpRequest && window.location.protocol !== "file:" || window.ActiveXObject ?
- new window.XMLHttpRequest() :
- new window.ActiveXObject("Microsoft.XMLHTTP");
+ if ( window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ) {
+ return new window.XMLHttpRequest();
+
+ } else {
+ try {
+ return new window.ActiveXObject("Microsoft.XMLHTTP");
+ } catch(e) {}
+ }
},
accepts: {
xml: "application/xml, text/xml",
// Create the request object
var xhr = s.xhr();
+ if ( !xhr ) {
+ return;
+ }
+
// Open the socket
// Passing null username, generates a login popup on Opera (#2865)
if ( s.username ) {
// Get the JavaScript object, if JSON is used.
if ( type === "json" ) {
- if ( typeof JSON === "object" && JSON.parse ) {
+ // Try to use the native JSON parser first
+ try {
data = JSON.parse( data );
- } else {
+
+ } catch(e) {
data = (new Function("return " + data))();
}
}