Input fixed (event path sometimes undefined on some browsers)

PongGame/wwwroot/js/pong.js

@@ -186,7 +186,7 @@ const keyEvent = (function () {
     }
 
     if (event.repeat) return;
-    if (event.path.indexOf(document.body) != 0) return; // only use key if it was pressed on empty space
+    if (event.target.tagName == 'INPUT') return; // dont use key if on input
 
     event.preventDefault();
     moveUpdated();