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.
const style = toStyle(this, "border", "font", "margin");
    let html;
    if (this.multiLine === 1) {
      html = {
        name: "textarea",
        attributes: {
          fieldId: this[$getParent]()[$getParent]()[$uid],
          class: ["xfaTextfield"],
          style,
        },
      };
    } else {
      html = {
        name: "input",
        attributes: {
          type: "text",
          fieldId: this[$getParent]()[$getParent]()[$uid],
          class: ["xfaTextfield"],
          style,