diff --git a/ec-canvas/ec-canvas.js b/ec-canvas/ec-canvas.js
index a308340..dc091f9 100644
--- a/ec-canvas/ec-canvas.js
+++ b/ec-canvas/ec-canvas.js
@@ -261,5 +261,8 @@ function wrapTouch(event) {
     touch.offsetX = touch.x;
     touch.offsetY = touch.y;
   }
+  event.preventDefault ??= () => {};
+  event.stopImmediatePropagation ??= () => {};
+  event.stopPropagation ??= () => {};
   return event;
 }