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.
_setValue(this, value);
  }
  [$toHTML](availableSpace) {
    
    if (!this.value) {
      return HTMLResult.EMPTY;
    }
    const value = this.value[$toHTML](availableSpace).html;
    if (!value) {
      return HTMLResult.EMPTY;
    }
    const children = [];
    if (typeof value === "string") {
      children.push({
        name: "#text",
        value,
      });
    } else {
      children.push(value);
    }