Getting PHP Warning about nodeType from lib/util/dom.php

[jimboobrien]

Warning: Attempt to read property "nodeType" on null in .../wp-bootstrap-hooks-master/lib/util/dom.php on line 101

Can you change line 101 from:

  if ($element->nodeType !== 1) {
    return;
  }

To the following code:

  if ( $element && null !== $element ) {
    if ( 1 !== $element->nodeType ) {
      return;
    }
  } else {
    return;
  }

I tried to submit a PR to fix this, but did not have permissions.