Tabs: Force ajax tabs to resolve asynchronously to avoid a bug caused by cached XHRs resolving immediately in IE.

Author: scottgonzalez

tests/unit/tabs/tabs_events.js

@@ -206,7 +206,8 @@ test( "beforeLoad", function() {
 	});
 	element.find( ".ui-tabs-nav a" ).eq( 3 ).click();
 	tabs_state( element, 0, 0, 0, 1, 0 );
-	equals( panel.html(), "<p>testing</p>", "panel html after" );
+	// .toLowerCase() is needed to convert <P> to <p> in old IEs
+	equals( panel.html().toLowerCase(), "<p>testing</p>", "panel html after" );
 });
 
 if ( $.uiBackCompat === false ) {

ui/jquery.ui.tabs.js

@@ -541,19 +541,27 @@ $.widget( "ui.tabs", {
 
 			this.xhr
 				.success(function( response ) {
-					panel.html( response );
-					self._trigger( "load", event, eventData );
+					// TODO: IE resolves cached XHRs immediately
+					// remove when core #10467 is fixed
+					setTimeout(function() {
+						panel.html( response );
+						self._trigger( "load", event, eventData );
+					}, 1 );
 				})
 				.complete(function( jqXHR, status ) {
-					if ( status === "abort" ) {
-						self.panels.stop( false, true );
-					}
-
-					self.lis.eq( index ).removeClass( "ui-tabs-loading" );
-
-					if ( jqXHR === self.xhr ) {
-						delete self.xhr;
-					}
+					// TODO: IE resolves cached XHRs immediately
+					// remove when core #10467 is fixed
+					setTimeout(function() {
+						if ( status === "abort" ) {
+							self.panels.stop( false, true );
+						}
+	
+						self.lis.eq( index ).removeClass( "ui-tabs-loading" );
+	
+						if ( jqXHR === self.xhr ) {
+							delete self.xhr;
+						}
+					});
 				});
 		}