Attach (recommended) or Link to PDF file here:
PDF from #4106, https://mail.gnome.org/archives/evince-list/2013-November/pdfNC0hkVW67a.pdf.

Steps to reproduce the problem:
1. Open the PDF

What is the expected behavior?
![immagine](https://user-images.githubusercontent.com/1616846/121865567-67ca4200-ccfe-11eb-8673-1d6e863fc8d5.png)

What went wrong?
The PDF doesn't load, `TypeError: can't access property Symbol(), match is null` error is logged in the console.
$getChildren,
  $getContainedChildren,
  $getNextPage,
  $getParent,
  $getSubformParent,
  $hasItem,
  $hasSettableValue,
  $ids,
  $isCDATAXml,
  $isTransparent,
  $namespaceId,
  $nodeName,
  $onChild,
  $onText,
  $removeChild,
  $searchNode,
  $setSetAttributes,
  $setValue,
  $text,
  $toHTML,
  $toStyle,
  $uid,
  ContentObject,
  Option01,
  OptionObject,
  StringObject,
  XFAObject,
  XFAObjectArray,
} from "./xfa_object.js";
import { $buildXFAObject, NamespaceIds } from "./namespaces.js";