X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Fajax.js;h=6414e8c2990e8e9d07a4cfce056a1b896c1b2522;hb=a43a5ca9cf79afcd662df5b9110d7ccba45c0b53;hp=7ef8dec186669fc26a759b44f55e7036f03ae466;hpb=d4790116b8ff83786e82767cba23a4bff0236e58;p=jquery.git

diff --git a/src/ajax.js b/src/ajax.js
index 7ef8dec..6414e8c 100644
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -4,7 +4,7 @@ var r20 = /%20/g,
 	rbracket = /\[\]$/,
 	rCRLF = /\r?\n/g,
 	rhash = /#.*$/,
-	rheaders = /^(.*?):\s*(.*?)\r?$/mg, // IE leaves an \r character at EOL
+	rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg, // IE leaves an \r character at EOL
 	rinput = /^(?:color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week)$/i,
 	// #7653, #8125, #8152: local protocol detection
 	rlocalProtocol = /(?:^file|^widget|\-extension):$/,
@@ -164,7 +164,7 @@ jQuery.fn.extend({
 			if ( jQuery.isFunction( params ) ) {
 				// We assume that it's the callback
 				callback = params;
-				params = null;
+				params = undefined;
 
 			// Otherwise, build a param string
 			} else if ( typeof params === "object" ) {
@@ -256,7 +256,7 @@ jQuery.each( [ "get", "post" ], function( i, method ) {
 		if ( jQuery.isFunction( data ) ) {
 			type = type || callback;
 			callback = data;
-			data = null;
+			data = undefined;
 		}
 
 		return jQuery.ajax({
@@ -272,7 +272,7 @@ jQuery.each( [ "get", "post" ], function( i, method ) {
 jQuery.extend({
 
 	getScript: function( url, callback ) {
-		return jQuery.get( url, null, callback, "script" );
+		return jQuery.get( url, undefined, callback, "script" );
 	},
 
 	getJSON: function( url, data, callback ) {
@@ -439,7 +439,7 @@ jQuery.extend({
 						}
 						match = responseHeaders[ key.toLowerCase() ];
 					}
-					return match || null;
+					return match === undefined ? null : match;
 				},
 
 				// Overrides response content-type header