X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax.js;h=08dc4431a7e9b9d40d624d9f24323183495b9781;hb=d2e64979bf641181443a8e6456f6292973a7fa9a;hp=71bdd461bef9572773d3ee9cb5234d3dbd17938d;hpb=700ff05af0d30722dcc23a69849bfb278fdc7e75;p=jquery.git

diff --git a/src/ajax.js b/src/ajax.js
index 71bdd46..08dc443 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -4,10 +4,11 @@ var jsc = jQuery.now(),
 	rscript = /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi,
 	rselectTextarea = /^(?:select|textarea)/i,
 	rinput = /^(?:color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
+	rnoContent = /^(?:GET|HEAD|DELETE)$/,
 	rbracket = /\[\]$/,
 	jsre = /\=\?(&|$)/,
 	rquery = /\?/,
-	rts = /([?&])_=[^&]*(&?)/,
+	rts = /([?&])_=[^&]*/,
 	rurl = /^(\w+:)?\/\/([^\/?#]+)/,
 	r20 = /%20/g,
 	rhash = /#.*$/,
@@ -179,19 +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",
@@ -204,7 +196,7 @@ jQuery.extend({
 
 	ajax: function( origSettings ) {
 		var s = jQuery.extend(true, {}, jQuery.ajaxSettings, origSettings),
-			jsonp, status, data, type = s.type.toUpperCase();
+			jsonp, status, data, type = s.type.toUpperCase(), noContent = rnoContent.test(type);
 
 		s.url = s.url.replace( rhash, "" );
 
@@ -277,7 +269,7 @@ jQuery.extend({
 			var ts = jQuery.now();
 
 			// try replacing _= if it is there
-			var ret = s.url.replace(rts, "$1_=" + ts + "$2");
+			var ret = s.url.replace(rts, "$1_=" + ts);
 
 			// if nothing was replaced, add timestamp to the end
 			s.url = ret + ((ret === s.url) ? (rquery.test(s.url) ? "&" : "?") + "_=" + ts : "");
@@ -355,8 +347,8 @@ jQuery.extend({
 
 		// Need an extra try/catch for cross domain requests in Firefox 3
 		try {
-			// Set the correct header, if data is being sent
-			if ( s.data || origSettings && origSettings.contentType ) {
+			// Set content-type if data specified and content-body is valid for this type
+			if ( (s.data != null && !noContent) || (origSettings && origSettings.contentType) ) {
 				xhr.setRequestHeader("Content-Type", s.contentType);
 			}
 
@@ -466,12 +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 );
 				}
 
@@ -491,10 +485,10 @@ jQuery.extend({
 
 		// Send the data
 		try {
-			xhr.send( (type !== "GET" && s.data) || null );
+			xhr.send( noContent || s.data == null ? null : s.data );
 
 		} catch( sendError ) {
-			jQuery.ajax.handleError( s, xhr, null, e );
+			jQuery.ajax.handleError( s, xhr, null, sendError );
 
 			// Fire the complete handlers
 			jQuery.ajax.handleComplete( s, xhr, status, data );
@@ -694,6 +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();