Fixing some bugs. fixing some scroll issues

src/runtime-compiled.ts

@@ -269,7 +269,7 @@ export function runAppCompiled(canvas: HTMLCanvasElement, store: any) {
         const y = e.clientY - rect.top;
 
         const hit = scrollHitTest(x, y);
-        if (hit) {
+        if (hit && typeof hit.onScroll === 'function') {
             const delta = { deltaX: Math.round(e.deltaX), deltaY: Math.round(e.deltaY) };
             handleEvent(hit.onScroll(delta));
         }