Fixes #8138. Access to document.location is made only once at load time and if it...

diff --git a/src/ajax.js b/src/ajax.js
index 1a19d0c..2d20040 100644 (file)
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -34,7 +34,22 @@ var r20 = /%20/g,
         * 2) the catchall symbol "*" can be used
         * 3) selection will start with transport dataType and THEN go to "*" if needed
         */
-       transports = {};
+       transports = {},
+
+       // Stored document location array
+       ajaxLocation;
+
+// #8138, IE may throw an exception when accessing
+// a field from document.location if document.domain has been set
+try {
+       ajaxLocation = document.location.href;
+} catch( e ) {
+       // Use the href attribute of an A element
+       // since IE will modify it given document.location
+       ajaxLocation = document.createElement( "a" );
+       ajaxLocation.href = "";
+       ajaxLocation = ajaxLocation.href;
+}
 
 // Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
 function addToPrefiltersOrTransports( structure ) {
@@ -260,7 +275,7 @@ jQuery.extend({
        },
 
        ajaxSettings: {
-               url: location.href,
+               url: ajaxLocation,
                global: true,
                type: "GET",
                contentType: "application/x-www-form-urlencoded",
@@ -361,8 +376,6 @@ jQuery.extend({
                        // timeout handle
                        timeoutTimer,
                        // Cross-domain detection vars
-                       loc = document.location,
-                       protocol = loc.protocol || "http:",
                        parts,
                        // The jqXHR state
                        state = 0,
@@ -549,7 +562,7 @@ jQuery.extend({
                // Remove hash character (#7531: and string promotion)
                // Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
                // We also use the url parameter if available
-               s.url = ( "" + ( url || s.url ) ).replace( rhash, "" ).replace( rprotocol, protocol + "//" );
+               s.url = ( "" + ( url || s.url ) ).replace( rhash, "" ).replace( rprotocol, ajaxLocation[ 1 ] + "//" );
 
                // Extract dataTypes list
                s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().split( rspacesAjax );
@@ -558,9 +571,9 @@ jQuery.extend({
                if ( !s.crossDomain ) {
                        parts = rurl.exec( s.url.toLowerCase() );
                        s.crossDomain = !!( parts &&
-                               ( parts[ 1 ] != protocol || parts[ 2 ] != loc.hostname ||
+                               ( parts[ 1 ] != ajaxLocation[ 1 ] || parts[ 2 ] != ajaxLocation[ 2 ] ||
                                        ( parts[ 3 ] || ( parts[ 1 ] === "http:" ? 80 : 443 ) ) !=
-                                               ( loc.port || ( protocol === "http:" ? 80 : 443 ) ) )
+                                               ( ajaxLocation[ 3 ] || ( ajaxLocation[ 1 ] === "http:" ? 80 : 443 ) ) )
                        );
                }
 
@@ -717,6 +730,9 @@ jQuery.extend({
        }
 });
 
+// Segment ajaxLocation into parts
+ajaxLocation = rurl.exec( ajaxLocation.toLowerCase() );
+
 function buildParams( prefix, obj, traditional, add ) {
        if ( jQuery.isArray( obj ) && obj.length ) {
                // Serialize array item.