Version 4.6.0

applications/core/modules/front/system/announcement.php

@@ -97,7 +97,7 @@ class _announcement extends \IPS\Content\Controller
 		}
 
 		/* Make sure this is a local URL */
-		if( !$url->isInternal )
+		if( !( $url instanceof \IPS\Http\Url\Internal ) )
 		{
 			\IPS\Output::i()->json( array( 'status' => 'not_local' ) );
 		}