message: add onload for image
diff: @@ -33,7 +33,12 @@ define(function (require) {
  // Must bind each time
  style.bind(ctx, this, prevEl);
  - var image = this._image = imageHelper.createOrUpdateImage(src, this._image, this);
  + var image = this._image = imageHelper.createOrUpdateImage(
  + src,
  + this._image,
  + this,
  + this.onload
  + );
  if (!image || !imageHelper.isImageReady(image)) {
  return;
  