message: fix(nodeWrap): isHandle func
diff: @@ -8,7 +8,7 @@ import { isNode } from '../../graph-utils';
  import { Provider } from '../NodeIdContext';
  const isInput = e => ['INPUT', 'SELECT', 'TEXTAREA'].includes(e.target.nodeName);
  -const isHandle = e => e.target.className.includes('source');
  +const isHandle = e => e.target.className && e.target.className.includes('source');
  const getHandleBounds = (sel, nodeElement, parentBounds) => {
  const handle = nodeElement.querySelector(sel);
  