traditional: false,
*/
// Create the request object; Microsoft failed to properly
- // implement the XMLHttpRequest in IE7, so we use the ActiveXObject when it is available
+ // implement the XMLHttpRequest in IE7 (can't request local files),
+ // so we use the ActiveXObject when it is available
// This function can be overriden by calling jQuery.ajaxSetup
xhr: function() {
- return window.ActiveXObject ?
- new ActiveXObject("Microsoft.XMLHTTP") :
- new XMLHttpRequest();
+ 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 ) {