Change invokeaction on close dialog button

example.html

@@ -59,7 +59,7 @@ <h1>InvokeTarget &amp; InvokeAction</h1>
     </button>
 
     <dialog id="my-dialog">
-      <button invoketarget="my-dialog" aria-label="Close dialog">x</button>
+      <button invoketarget="my-dialog" invokeaction="close" aria-label="Close dialog">x</button>
       This is a dialog. Press the Close button (X) to close it
     </dialog>