Add missing click function for links test
diff --git a/samples/test-vr-links.html b/samples/test-vr-links.html
index f8af1ff..2c55c69 100644
--- a/samples/test-vr-links.html
+++ b/samples/test-vr-links.html
@@ -314,6 +314,11 @@
           document.exitPointerLock();
         }
       }
+
+      // This utility function monitors clicks from gamepads that are associated
+      // with a VRDisplay and fires the callback, providing "click" support for
+      // browsers that don't fire mouse click events on interaction.
+      VRSamplesUtil.addVRClickListener(onClick);
       
       webglCanvas.addEventListener("click", onClick, false);
       window.addEventListener('vrdisplaypointerrestricted', onDisplayPointerRestricted);