Renamed preprocess to before, for consistency with form plugin

[jquery.git] / src / ajax / ajax.js

diff --git a/src/ajax/ajax.js b/src/ajax/ajax.js
index d56ae0f..cf6298d 100644 (file)
--- a/src/ajax/ajax.js
+++ b/src/ajax/ajax.js
@@ -134,10 +134,7 @@ jQuery.fn.extend({
 // If IE is used, create a wrapper for the XMLHttpRequest object
 if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" )
        XMLHttpRequest = function(){
-               return new ActiveXObject(
-                       navigator.userAgent.indexOf("MSIE 5") >= 0 ?
-                       "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP"
-               );
+               return new ActiveXObject("Microsoft.XMLHTTP");
        };
 
 // Attach a bunch of functions for handling common AJAX events
@@ -487,6 +484,9 @@ jQuery.extend({
         * (Boolean) async - By default, all requests are send asynchronous (set to true).
         * If you need synchronous requests, set this option to false.
         *
+        * (Function) before - A pre-callback to set custom headers etc., the
+        * XMLHttpRequest is passed as the only argument.
+        *
         * @example $.ajax({
         *   type: "GET",
         *   url: "test.js",
@@ -524,7 +524,8 @@ jQuery.extend({
                        data: null,
                        contentType: "application/x-www-form-urlencoded",
                        processData: true,
-                       async: true
+                       async: true,
+                       before: null
                }, s);
 
                // if data available
@@ -565,6 +566,10 @@ jQuery.extend({
                // Make sure the browser sends the right content length
                if ( xml.overrideMimeType )
                        xml.setRequestHeader("Connection", "close");
+                       
+               // Allow custom headers/mimetypes
+               if( s.before )
+                       s.before(xml);
 
                // Wait for a response to come back
                var onreadystatechange = function(isTimeout){