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.
if (typeof this[$content] === "string") {
      
      
      const html = valueToHtml(this[$content]).html;
      if (this[$content].includes("\u2029")) {
        
        
        html.name = "div";
        html.children = [];
        this[$content]
          .split("\u2029")
          .map(para =>
            
            
            para.split(/[\u2028\n]/).reduce((acc, line) => {
              acc.push(
                {
                  name: "span",
                  value: line,
                },
                {
                  name: "br",
                }
              );
              return acc;
            }, [])
          )