X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax.js;h=08dc4431a7e9b9d40d624d9f24323183495b9781;hb=d2e64979bf641181443a8e6456f6292973a7fa9a;hp=31efc566f0a9f236df071333f9842484972baa0a;hpb=e63fa8beb8e285fe19fc0a1557045b80e3c63c66;p=jquery.git

diff --git a/src/ajax.js b/src/ajax.js
index 31efc56..08dc443 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -180,19 +180,10 @@ jQuery.extend({
 		password: null,
 		traditional: false,
 		*/
-		// Create the request object; Microsoft failed to properly
-		// 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: window.XMLHttpRequest && (window.location.protocol !== "file:" || !window.ActiveXObject) ?
-			function() {
-				return new window.XMLHttpRequest();
-			} :
-			function() {
-				try {
-					return new window.ActiveXObject("Microsoft.XMLHTTP");
-				} catch(e) {}
-			},
+		xhr: function() {
+			return new window.XMLHttpRequest();
+		},
 		accepts: {
 			xml: "application/xml, text/xml",
 			html: "text/html",
@@ -467,12 +458,14 @@ jQuery.extend({
 			}
 		};
 
-		// Override the abort handler, if we can (IE doesn't allow it, but that's OK)
+		// Override the abort handler, if we can (IE 6 doesn't allow it, but that's OK)
 		// Opera doesn't fire onreadystatechange at all on abort
 		try {
 			var oldAbort = xhr.abort;
 			xhr.abort = function() {
-				if ( xhr ) {
+				// xhr.abort in IE7 is not a native JS function
+				// and does not have a call property
+				if ( xhr && oldAbort.call ) {
 					oldAbort.call( xhr );
 				}
 
@@ -695,6 +688,27 @@ jQuery.extend( jQuery.ajax, {
 
 });
 
+/*
+ * Create the request object; Microsoft failed to properly
+ * implement the XMLHttpRequest in IE7 (can't request local files),
+ * so we use the ActiveXObject when it is available
+ * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
+ * we need a fallback.
+ */
+if ( window.ActiveXObject ) {
+	jQuery.ajaxSettings.xhr = function() {
+		if ( window.location.protocol !== "file:" ) {
+			try {
+				return new window.XMLHttpRequest();
+			} catch(e) {}
+		}
+
+		try {
+			return new window.ActiveXObject("Microsoft.XMLHTTP");
+		} catch(e) {}
+	};
+}
+
 // Does this browser support XHR requests?
 jQuery.support.ajax = !!jQuery.ajaxSettings.xhr();